N506AS
Registered owner: UMB BANK NA TRUSTEE, UT (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
REF TASK CARD 78233001 FOUND LH AFT EMERGENCY LIGHTS DID NOT PASS TEST. GROUNDED - YES. REMOVED AND REPLACED AFT LT EMERGENCY BATTERY M1672 REF AMM 33-51-06, NEW BATTERY PASSED TEST.
GEN CONTROL UNIT A/C LEFT IN E+E BAY HAS BTB FAULT LIGHT ILLUMINATED. GROUNDED - YES. RESET GCU REF AMM 24-21-81-400-801 NO FAULTS NOTED.
FOUND 1 EA CRACK INDICATION LOWER SKIN L/H STAB 138.70 AND S147.90 16 INCH LENGTH APROX AS MARK. GROUNDED - YES. REPAIRED THE L/H HORIZ. STAB LOWER SKIN STA 138.70 AND 147.90 USING MAT .071 2024-T3 AND .100 2024-T3 PER B737-80 SRM 55-10-01-2R-11. REPAIR IS A CAT "B" REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLIGHT CYCLES AND 9,000 FLIGHT CYCLES INTERVAL.
LEFT & RIGHT MAIN CABIN EMERGENCY LIGHTS INOPERATIVE. GROUNDED - YES. R & R THREE EMERGENCY BATTERIES, LT & RT ROW 23 & LT SEAT ROW 7. PERFORMED AN OPS CHECK, TESTED GOOD IAW AMM 33-31-06-960-805.
LEFT & RIGHT MAIN CABIN EMERGENCY LIGHTS INOPERATIVE. GROUNDED - YES. R & R THREE EMERGENCY BATTERIES LT & RT ROW 23 AND LT SEAT ROW 7 & PERFORMED AN OPS CHECK, TESTED GOOD IAW AMM 33-31-06-960-805.
LEFT & RIGHT MAIN CABIN EMERGENCY LIGHTS INOPERATIVE. GROUNDED - YES. R & R THREE EMERGENCY BATTERIES LT & RT ROW 23 & LT SEAT ROW 7 & PERFORMED AN OPS CHECK, TESTED GOOD IAW AMM 33-31-06-960-805.
REF DEFECT # 300011333 N/R-00004 LAV WASTE VENT SKIN IS OUT OF LIMITS AND REQUIRES REPAIR. GROUNDED - YES. REPAIRED LAV WASTE VENT SKIN IAW 737-800 SRM 53-70-01-2R-3W= .5" O= .125" R= .096" L= 1" D= .029".
LIGHTS ASSOCIATED WITH M1674 POWER SUPPLY ARE INOP. GROUNDED - YES. REMOVED AND REPLACED M1674 POWER SUPPLY IAW B737-800 AMM 33-51-06-960-806 TEST GOOD.
MAIN CABIN WALL SUPPORT STA 990 - 1016 LBL 32 CORRODED. GROUNDED - YES. CORROSION IS AROUND SEVERAL FASTENER HOLES, 100% MATERIAL LOSS. OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1. DRILLED TO FIT NEW SUPPORT IAW B737-800 SRM 51-40-05 AND BAC DWG 147A5700 REV.- SUPPORT INSTALLED ON N/R 42898 CUSTOMER CARD G1995898.
MAIN CABIN SUPPORT STA 990 - 1016 RBL 32 CORRODED. GROUNDED - YES. BLENDED OUT CORROSION. SUPPORT HAS 100% MATERIAL LOSS. OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1. DRILLED TO FIT NEW SUPPORT IAW B737-800 SRM 51-40-05 AND BAC DWG 147A5700 REV.- SUPPORT INSTALLED ON N/R 42898 CUSTOMER CARD G1995898.
MAIN CABIN SUPPORT P/N 147A5676-16 STA 927 - STA 947 LBL16 CORRODED. GROUNDED - YES. BLENDED CORROSION SUPPORT HAS 100% MAT LOSS FOUND OUT OF LIMITS ALLOWABLE DAMAGE IAW B737-800 SRM 53-70-51-1A-1. DRILLED TO FIT NEW SUPPORT IAW B737-800 SRM 51-40-05 AND BAC DWG 147A5650 REV.C.SUPPORT ON N/R 42897 CUST CARD NO G1995897.
MAIN CABIN SUPPORT P/N 147A5676-5 STA 947 LBL 25 - LBL 50 CORRODED. GROUNDED - YES. CORROSION IS AROUND SEVERAL FASTENERS HOLE FOUND OUT OF LIMITS ALLOWABLE DAMAGE IAW B737-800 SRM 53-70-51-1A-1 100% MATERIAL LOSS. DRILLED NEW SUPPORT IAW B737-800 SRM 51-40-05 AND BAC DWG. 147A5650 REV.C. SUPPORT REMOVED AND REPLACED ON N/ 42897 CUST CARD NO G1995897.
MAIN CABIN INTERCOSTAL P/N 147A5676-13 STA 947.5 TO 967 CORRODED. GROUNDED - YES. CORROSION IS AROUND SEVERAL FASTENERS HOLE FOUND OUT OF LIMITS ALLOWABLE DAMAGE IAW B737-800 SRM 53-70-51-1A-1, 100% MAT LOSS. DRILLED NEW SUPPORT IAW B737-800 SRM 51-40-05 AN BAC DWG. 148A5650 REV. C, SUPPORT ON N/R 42897 CUST CARD NO G1995897.
MAIN CABIN STA 990 RBL 32-43 CORRODED SUPPORT. GROUNDED - YES. CORROSION AT FASTENER HOLES 100% MATERIAL LOSS. OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1. DRILLED TO FIT NEW SUPPORT IAW B737-800 SRM 51-40-05 AND BAC DWG 147A5700 REV.- SUPPORT INSTALLED ON N/R 42898 CUSTOMER CARD G1995898.
MAIN CABIN AFT WET AREA FLOOR STRUCTURE AT STA 951 R/H HAS CORROSION AT FASTENER HOLES UNDERSIDE. GROUNDED - YES. REMOVED AND REPLACED SUPPORT FRAME IAW B737-800 SRM 51-40-02 AND IAW REF'S AIPC 53-42-51.
RIGHT HORZ. STAB INTERNAL APPROX. SS 120 BETWEEN FRONT SPAR AND REAR RIB CRACKED. GROUNDED - YES. REPAIRED THE RIGHT HORIZ. STAB RIB AT APPROX SS 120 USING MAT BAC1505-100962 T-SECTION, BAC1490-2793 ANGLE, 0.12 7075-T6 SHIMS PER B737-800 SRM 55-10-09-2R-4.
FWD CARGO LT TRANSITION PANEL STA 500G+2 TO 500I HAS CORROSION. GROUNDED - YES. REMOVED CORROSION FROM THE FWD PIT L/H TRANSITION PANEL AT STA 500G+2 TO 500I IAW B737-800 SRM 53-00-53-1A-2.2.D ORIG THICKNESS IS .040 IAW B737-800 SRM 53-30-53-01-2 TABLE 2. REMOVED .008. REMAINING THICKNESS IS .032 AND IS FOUND TO BE OUT OF LIMITS PER. B737-800 SRM 53-00-53-1A-2.4.A.(2). REPAIRED THE FWD PIT L/H TRANSITION PANEL FROM STA 500F+10 TO 500I WITH BAC 1496-444 PO: 1088630.1 PER. B737-800 SRM 53-00-53-2R-5 REMOVE DOT.
FWD PIT, L/H BAFFLE CLIP AT STA 500G AFT SIDE IS CRACKED. GROUNDED - YES. REMOVED & REPLACED FWD PIT, L/H BAFFLE CLIP AT AT STA 500G WITH PN: 143A 7502-159 PO: 1092414.1 IAW B737-800 SRM 51-40-02 & SRM 51-40-05.
FWD PIT, L/H BAFFLE CLIP AT STA 500H FWD SIDE IS CRACKED. GROUNDED - YES. REMOVED & REPLACED FWD PIT L/H BAFFLE CLIP AT STA 500H PN:143A7502-155 IAW B737-800 SRM 51-40-02 & SRM 51-40-05.
FWD PIT R/H TRANSITION PANEL STA 500E+10 TO 500I HAS CORROSION. GROUNDED - YES. REMOVED THE CORROSION FROM THE FWD PIT R/H TRANSITION PANEL AT STA 500E+10 TO 500I IAW B737-800 SRM 53-00-53-1A-2.2.D. ORIG THICKNESS IS .040" IAW B737-800 SRM 53-30-53-01-2 TABLE 2. REMOVED .007" REMAINING THICKNESS IS .033" AND IS FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-00-53-1A-2.4.A.(2). REMOVED & REPLACED FWD PIT R/H TRANSITION PANEL FROM STA 500E + 10 TO 500I IAW B737-800 SRM 53-00-53-2R-5.
MAIN CABIN FLOOR SUPPORT INTERCOSTAL AT STA 947 CORRODED. GROUNDED - YES. BLENDED CORROSION INTERCOSTAL HAS 100% MATERIAL LOSS FOUND OUT OF LIMITS ALLOWABLE DAMAGE IAW B737-800 STM 53-70-51-1A-1 AT STA 242.5 LBL 24.5, DRILLED FIT NEW INTERCOSTAL IAW B737-800 SRM 51-40-05 AND BAC DWG 147A5650 REV. C, INTERCOSTAL ON N/R 42897 CUST. CARD NO G1995897.
E/E COMPT. AFT DOOR PIN RECEPTICLE BRACKET IS WORN. GROUNDED - YES. REMOVED AND REPLACED RECEPTICLE BRACKET IAW B737-800 SRM 51-40-02 AND BOEING DWG # 141A3501 REV: - ADJUSTMENT CHECK GOOD.
AFT WET AREA STA 947 T-CAP HAS CORROSION AT MOUNT FITTING. GROUNDED - YES. REMOVED CORROSION, ORIGINAL THICK 0.1800 IAW B737-800 SRM 53-70-51-1A-1 AND FLOOR BEAM BAC 1518-1212 REMAINING THICK 0.154 AT RBL 53, 0.026" REMOVE MAT, REMAINING THICK 0.158 AT LBL 4, 0.22" REMOVED MAT. FOUND WITHIN LIMITS ALLOWABLE DAMAGE, REMAINING THICK .078" AT LBL 245 0.102 REMOVED MAT FOUND OUT OF LIMITS ALLOWABLE DAMAGE IAW B737-800 SRM 53-70-51-1A-1, CUT OUT DAMAGE STA 947.5 LBL 9 TO LBL 58, FABRICATED 'T' CHORD REPAIR, ANGLES, STRAPS AND FILLERS, AND DRILLED TO FIT NEW CHIPS STA 947.5 BETWEEN 50 LBL TO LBL 52 IAW B737-800 SRM 53-70-51-2R-5 ALTERNATIVE AND SRM 51-40-05; ALODINED FLOOR BEAM RBL 53 TO LBL 58 AND CUT EDGE 'T' CHORD, SPLICE, ANGLES, STRAPS, AND FILLERS; IAW B737-800 SRM 51-20-01; PRIMED FLOOR BEAM RBL 53 TO LBL 58, CUT EDGE, 'T' CHORD, SPLICE, ANGLES, STRAP AND FILLERS IAW BOEING SOPM 20-41-02 AND INSTALLED REPAIR T CHORD, SPLICES, ANGLES, STRAPS, CHIPS AND FILLERS IAW B737-800 SRM 53-70-51-2R-5 ALTERNATIVE 2.
AFT WET STA 986 HAS CORRODED FASTENER HOLES FLOOR BEAM. GROUNDED - YES. REMOVED CORROSION. ORIGINAL THICKNESS 0.150 IAW B737-800 SRM 53-70-51-0I-1 AND BAC 1518-1211. REMAINING THICKNESS AT RBL 34- 0.100, REMOVED 0.050. REMAINING THICK AT LBL43 0.095, REMOVED 0.055. OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1. CUT OUT DAMAGE STA 986 LBL 50 - RBL 50, CUT MACHINED INTERCOSTALS, FABRICATED REPAIR T CHORD, SPLICE ANGLES, STRAPS, CORNER FITTINGS, SHEAR TIES, AND FILLERS IAW B737-800 SRM 53-70-51-2R-4 ALTERNATIVE 1. ALODINED IAW B737-800 SRM 51-20-01. PRIMED IAW BOEING SOPM 20-41-02. INSTALLED REPAIR T CHORD, SPLICE ANGLES, STRAPS, CORNER FITTINGS, SHEAR TIES, AND FILLERS IAW B737-800 SRM 53-70-51-2R-4 ALTERNATIVE 1.
FWD WET AREA STA 312 - 328 LBL 11 FLOOR STIFFNER HAS CORROSION. GROUNDED - YES. REMOVED CORROSION FROM FWD WET AREA, STA 312-328, LBL 11 FLOOR STIFFENER (PANEL BREAK) REF B737-800 SRM 53-10-51-OI-2, TABLE 3 ITEM (8)PER B737-800 SRM 53-10-51-1A-1, PAR. 4.F (2) ORIG. THICK 0.080, MAT LOSS 0.056, REMAINING THICK 0.024 OUT OF LIMITS PER B737-800 SRM 53-10-51-1A, FIG 105, DETAIL C. REMOVED PANEL BREAK AT STA 312-328 LBL 11 TO FOM PER 737-800 SRM 51-40-02-OG-0. RECEIVED NEW PART PO#1092677. LOCATED AND DRILLED IAW B737-800 SRM 51-40-05. INSTALLED STIFFENER IAW B737-800 SRM 51-40-02 AND IAW B737-800 BAC DWG 141A5400 REV:- INSTALED NUT PLATES (5EA) PER B737-800 SRM 51-40-10-2R-0 UP TO STEP 4.F.(1) CURE TIME START 8:15 PERFORMED NUT PLATE CURE TEST IAW B737-800 SRM 50-40-10. LOAD TEST PASSED CURE VERIFIED.
FWD WET AREA STA 328 - 344 LBL11 FLOOR STIFFNER HAS CORROSION. GROUNDED - YES. REMOVED CORROSION FROM FWD WET AREA, STA 328-344, LBL 11 FLOOR STIFFENER (PANEL BREAK) REF B737-800 SRM 53-10-51-0I-2. TABLE 3. ITEM 8 PER. B737-800 SRM 53-10-51-1A-A. PAR 4.F,(2) ORIG THICK. 0.080 MAT LOSS 0.054. REMAINING THICK 0.026. OUT OF LIMITS PER B737-800 SRM 53-10-51-1A-1. FIG 105 DETAIL C. REMOVED PANEL BREAK AT STA 328-344 LBL 11 TO F.O.M. PER B737-800 SRM 51-40-02-0G-0. RECIEVED NEW PART. PART # 1092591.5. LOCATED & DRILLED IAW B737-800 SRM 51-40-05. INSTALLED STIFFNER IAW B737-800 SRM 51-40-02 AND IAW BAC DWG 141A5400 REV-. INSTALLED NUT PLATES 4(EACH) PER B737-800 SRM 51-40-10-2R-0 UP TO STEP 4.F.(1), CURE TIME START 8:15. PERFORMED NUT PLATE LOAD TEST IAW B737-800 SRM 50-40-10. LOAD TEST PASSED CURE VERIFIED.
R1 DOOR OUTER HANDLE PAN HAS LIGHT CORROSION. GROUNDED - YES. REMOVED DAMAGED PAN ASSY & INSTALLED NEW 141A6554Y1 PAN ASSY IAW B737-800 SRM 51-40-2 & BAC DWG 141A6516 REV.A UPON FURTHER INSPECTION FOUND DENT AND HANDLE PAN TO BE OUT OF LIMITS IAW B737-800 SRM 52-10-02-1A-2.
L2 DOOR OUTER HANDLE PAN HAS LIGHT CORROSION. GROUNDED - YES. REMOVED WORN HANDLE PAN & INSTALLED NEW HANDLE PAN REFERANCE BACDWG #147A6116 REV-, UPON FURTHER INSPECTION FOUND DENT & FOUND TO BE OUT OF LIMITS, REFERENCE B737-80 SRM 52-10-02-1A-3.
R2 DOOR OUTER HANDLE PAN HAS LIGHT CORROSION. GROUNDED - YES. REMOVED WORN HANDLE PAN & INSTALLED NEW HANDLE PAN, REFERENCE BAC DWG#147A6502 REV B, UPON FURTHER INSPECTION FOUND DENT & FOUND HANDLE PAN TO BE OUT OF LIMITS , REFERENCE B737-800 SRM 52-10-02-1A-4.
AFT PIT L/H TRANSITION PANEL CORROSION BETWEEN STA 727 AND 727F+11 GROUNDED - YES. REMOVED CORROSION FROM AFT PIT L/H TRANSITION PANEL AT STA 727 TO 727 F+11 IAW B737-800 SRM 53-00-53-1A-2-0, 100% MATERIAL LOSS, FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-00-53-1A-2, 4.A. REPAIRED L/H TRANSITION PANEL AT STA 727 TO STA 727 F+11, USING MATERIAL 1496-377, 7075T62 IAW B737-800 SRM 53-00-53-2R-5.
AFT PIT FLOOR SUPPORT HAS CORROSION BETWEEN STA 794-807 RBL 13.84. GROUNDED - YES. REMOVED THE CORROSION FROM THE AFT PIT FLOOR SUPPORT AT STA 794-807, RBL 13.84 IAW B737-800 SRM 53-00-53-1A-2.2.0 ORIG THICKNESS IS .070" IAW B737-800 SRM 53-60-53-01-2 TABLE 2. REMOVED .040" REMAINING THICKNESS IS .030" AND IS FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-00-53-1A-2.4.B.(2) . REPAIRED AFT PIT FLOOR SUPPORT FROM STA 747+10 TO 887 RBL 13.84 USING EXISTING SPLICES IAW B737-800 SRM 53-00-53-2R-3 AND SOPM 20-20-02 AND B737-800 AMM 51-21-41 AND B737-800 AMM 51-21-72.51-21-41 AND B737-800 AMM 51-21-72.
AFT PIT, DOOR SURROUND FWD SHIELD ATTACH ANGLE IS CORRODED. GROUNDED - YES. REMOVED DAMAGE FROM AFT PIT FWD SHIELD ATTACH ANGLE IAW B737-800 SRM 53-60-15-1A-1. ORIGN'L MATERIAL WAS .050 IAW B737-800 SRM 53-60-15-01-1. REMOVED .020, REMAINING IS .030. FOUND TO BE OUT OF LIMITS IAW B737-800 SRM. 53-60-15-1A-1 TOOL#T8224K DUE 25/OCT/24. REMOVED AND INSTALLED NEW ATTACH ANGLE P/N 146A8125-53. PO#1092677.1 IAW B737-800 SRM 51-40-02.
AFT PIT, DOOR SURROUND FWD SHIELD IS CORRODED. GROUNDED - YES. REMOVED DAMAGE FROM AFT PIT DOOR SURROUND FWD SHIELD IAW B737-800 SRM 53-60-15-1A-1, ORIGIN'L MATERIAL WAS .050 IAW B737-800 SRM 53-60-15-01-1 100% MATERIAL LOSS. FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-60-15-1A-1, LOCATED AND DRILLED NEW SHIELD P/N 146A8127-12, PO#1092155.1 IAW B737-800 SRM 51-40-05, REMOVED AND REPLACED SHIELD ON AFT PIT DOOR SURROUND IAW B737-800 SRM 51-40-02 AND BOEING DWG #146A0081 REV:A.
AFT PIT FLOOR SUPPORT HAS CORROSION BETWEEN STA 727 AND 727B RBL 13.84. GROUNDED - YES. REMOVED CORROSION FROM AFT PIT FLOOR SUPPORT BETWEEN STA 727 TO 727B RBL 13.84 IAW B737-800 SRM 53-00-53-1A-2 ORIG. THICKNESS IS .070" IAW B737-800 SRM 53-60-53-01-2 TABLE 2. REMOVED .035" REMAINING THICKNESS IS .035" AND IS FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-00-53-1A-2. REPAIRED AFT PIT FLOOR SUPPORT BETWEEN STA 727 AND 727B RBL 13.84 IAW B737-800 SRM 53-00-53-2R-3 AND B737-800 AMM 51-21-41 AND B737-800 AMM 51-21-72.
AFT PIT R/H TRANSITION PANEL HAS CORROSION BETWEEN STA 727 AND 727F+11. GROUNDED - YES. REMOVED CORROSION FROM AFT PIT R/H TRANSITION PANEL AT STA 727 TO 727F+11 IAW B737-800 SRM 53-00-53-1A-2. ORIG THICKNESS IS .040" IAW B737-800 SRM 53-60-53-10-2 TABLE 2. REMOVED .015", REMAINING THICKNESS IS .025" AND IS FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-00-53-1A-2. REPLACED AFT PIT R/H TRANSITION PANEL FROM STA 727 TO 727F+11 IAW B737-800 SRM 53-00-53-2R-5.
AFT PIT, DOOR SURROUND LOWER MAIN SILL STRAP IS CORRODED BETWEEN STA 767 AND 787. GROUNDED - YES. REMOVED DAMAGE FROM LOWER MAIN SILL STRAP IAW B737-800 SRM 53-60-15-1A-1. ORIG. THICKNESS .080 PER B737-800 SRM 53-60-15-0I-1.REMOVED .037. REMAINING THICKNESS IS .043, AND IS FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-60-15-1A-1. REMOVED AND REPLACED STRAP IAW B737-800SRM 51-40-05 AND 51-40-02.
AFT PIT DOOR THRESHOLD WEB IS CORRODED. GROUNDED - YES. REMOVED DAMAGE FROM AFT PIT THRESHOLD WEB IAW ASA B737-800 SRM 53-60-15-1A-1 ORIGINAL MATL THKS .050 PER ASA B737-800 SRM 53-60-15-OI-1 TABLE ITEM 2 REMOVED .009 MATL .041 REMAINING MATL FOUND TO BE OUT OF LIMITS IAW ASA B737-800 SRM 53-60-15-1A-1 FIG D REMOVED THRESHOLD WEB IAW B737-800 SRM 51-40-02. RECEIVED NEW WEB P/N 146A8123425 PO# 1092155.2 LOCATED, DRILLED AND INSTALLED NUT PLATES IAW B737-800 SRM 51-40-05 AND SRM 51-40-02 INSTALLED THRESHOLD WEB IAW BAC DWG 146A83040 REV- AND B737-800 51-40-02.
MAIN CABIN AFT WET AREA FLOOR BOARD DELAME P/N 147A5810-137. GROUNDED - YES. COMPLETED PERMANENT REPAIR OF MAIN CABIN AFT WET AREA FLOORBOARD DELAMINATION PN 147A5810-137 IAW B737-800-SRM-53-00-50-2R-1 AND 53-00-50-2R-4.
MAIN CABIN AFT WET AREA FLOOR BOARD DELAME P/N 147A5810-23. GROUNDED - YES. COMPLETED PERMANENT REPAIR OF MAIN CABIN AFT WET AREA FLOOR BOARD DELAMINATION P/N 147A5810-23 IAW B737-800-SRM-53-00-50-2R-1 AND 53-00-50-2R-4.
MAIN CABIN UNDER FLOOR STA 540 PANEL SUPPORT CRACKED AT RBL 0 - RBL 10. GROUNDED - YES. REMOVED PANEL SUPPORT IAW B737-800 SRM 51-40-02. NEW PLATE PART . DRILLED TO FIT IAW B737-800 SRM 51-40-05. INSTALLED PANEL SUPPORT IAW B737-800 SRM 51-40-02 REF AIPC. 53-42-11.
MAIN CABIN AFT WET AREA FLOOR BOARD DELAME P/N 147A5810-136. GROUNDED - YES. COMPLETED PERMANENT REPAIR OF MAIN CABIN AFT WET AREA FLOOR BOARD DELAMINATION PN 147A5810-136 IAW B737-800-SRM-53-00-50-2R-1 AND 53-00-50-2R-4.
MAIN CABIN AFT WET AREA FLOOR BOARD DELAME P/N 147A5810-90. GROUNDED - YES. REPAIRED MAIN CABIN AFT WET AREA FLOOR BOARD NOTED DAMAGE BY PREFORMING PERMANENT WET LAY UP REPAIR IAW B737 SRM 53-00-50-2R-0, 53-00-50-2R-1.
MAIN CABIN AFT WET AREA FLOOR BOARD DELAME P/N 147A5810-28. GROUNDED - YES. COMPLETED PERMANENT REPAIR OF MAIN CABIN AFT WET AREA FLOOR BOARD DELAMINATION P/N 147A5810-28 IAW B737-800-SRM-53-00-50-2R-1 AND 53-00-50-2R-4.
MAIN CABIN AFT WET AREA FLOORBOARD DELAME P/N 147A5810-27. GROUNDED - YES. COMPLETED PERMANENT REPAIR OF MAIN CABIN AFT WET AREA FLOOR BOARD DELAMINATION PN 147A5810-27 IAW B737-800-SRM-53-00-50-2R-1 AND 53-00-50-2R-4.
FLOOR PANEL DELAME FWD WET AREA P/N 141A5810-763. GROUNDED - YES. COMPLETED PERMANENT REPAIR OF FLOOR PANEL DELAMINATION ON FWD WET AREA PANEL PN 141A5810-763 IAW B737-800-SRM-53-00-50-2R-1 AND 53-00-50-2R-4.
FLOOR PANEL DELAME FWD WET AREA P/N 141A5810-728. GROUNDED - YES. REPAIRED FLOOR PANEL P/N 141A5810-728 NOTED DAMAGE BY PREFORMING PERMANENT WET LAY UP REPAIR IAW B737 SRM 53-00-50-2R-1, 53-00-50-2R-0.
MAIN CABIN FLOOR PANEL DELAME P/N 141A5810-236. GROUNDED - YES. REPAIRED FLOOR PANEL P/N 141A5810-236 NOTED DAMAGE BY PREFORMING PERMANENT WET LAY UP REPAIR IAW B737 SRM 53-00-50-2R-1, 53-00-50-2R-0.
F.A. REPORTS: L-1 FLOOR LEVEL EMERGENCY LIGHT COVER FELL OFF. GLASS BROKEN. GROUNDED - YES. REMOVED & REPLACED LOWER THRESHOLD LIGHT ASSEMBLY COVER IAW AMM 33-14-00.
ROW 17 EXIT LIGHTING DIM. GROUNDED - YES. RE-LAMPED ROW 17 EXIT LIGHT, OPS GOOD.
FA REPORTS L1 DOOR MAKES UNUSUAL NOISE AND HAS GREATER THAN NORMAL RESISTANCE DURING OPENING AND CLOSING. GROUNDED - YES. LUBRICATED L1 DOOR UPPER AND LOWER HINGES, GUST LOCK, AND OPS CK NORMAL. DOOR OPENS AND CLOSES NORMALLY.
MF EMERGENCY EXIT LIGHT ABOVE DIRECTIONS TO OPERATE NOT WORKING. GROUNDED - YES. RESECURED LAMP AT 17F, C/W EMERGENCY LAMP OPS CHECK PER AMM 33-51-00. OPS CHECK GOOD. SEA M/C MARK NOTIFIED.
AISLE "EXIT" SIGN FELL BETWEEN ROW 16 & 17. GROUNDED - YES. RESECURED AISLE EXIT SIGN REF AMM 33-25-00. SEAMC MARK. NOTIFIED.NON ASA Y7NR985Y.
FWD GALLEY EXIT LIGHT COVER FELL OFF. (OVERHEAD SIGN). GROUNDED - YES. RESECURED FWD GALLEY EXIT LIGHT COVER REF AMM 33-51-01.
AUTO PILOT A WILL NOT ENGAGE. AUTO PILOT B WILL ENGAGE FOR 8 SECONDS THEN DISENGAGE. NO OTHER LIGHTS/MESSAGES OR WARNINGS. GROUNDED - YES. REF FIM 22-11/856 FOUND FAULT AIL ACT PRESS LCL INV INV ON LAST LEG MAINT. MESSAGE 22-11147. PREFORMED DFCS BITE IINTERACTIVE TESTS THROUGH MCP COMD/CWS INTERLOCK. ALL TESTS PASS NO CURRENT FAULTS.
WHILE PERFORMING TASK CARD 78273000, FOUND ENGINE 2 FAULTMSG NBR: 75-10462 THE HPTACC DEMAND AND POSITION SIGNALS DISAGREE. ECONOMIC. GROUNDED - YES. ON DEFERRAL.
WHILE PERFORMING T/C 78273000, FOUND #2 ENG ECONOMIC FAULT CODE 75-20462, THE HPTACC DEMAND AND POSITION SIGNALS DISAGREE. GROUNDED - YES. ON DEFERRAL.
17A EMERGENCY EXIT LIGHT LENS COVER INOP. GROUNDED - YES. REPLACED 17A EMERGENCY EXIT DIRECTIONAL LIGHT LENS COVER. OPS NML.
FOUND BURN THROUGH HOLE ON THE #2 ENG HPT NOZZLE OUTER PLATFORM LEADING EDGE APROX 7 O'CLOCK POSITION A.L.F. GROUNDED - YES. ON DEFERRAL.
16F EMERGENCY EXIT LIGHT BURNT OUT LATE F/A CALL OUT. GROUNDED - YES. RELAMPED 16F EMERGENCY EXIT LIGHT OPS CHECKS GOOD PER AMM 33-51-00.
#1 GAUGE (FUEL) ON WING INOP. GROUNDED - YES. (RESOLVED ON W/O: 1968889 TASKCARD: N/R-00004 ) REMOVED AND REPLACED FUEL QUANTITY INDICATOR OPS CHECK GOOD REF AMM 28-41-61. THIS CLOSES THIS MEL 28-12B. PLACARDS REMOVED. SEAMC DAVE NOTIFIED.
RT PACK LIGHT ILLUMINATED DURING PREFLIGHT. GROUNDED - YES. RESET SWITCH SUCCESSFUL.
FOLLOW-UP TO CONTINUING REPORTS OF RIGHT PACK LIGHT ILLUMINATED AND WONT RESET ---(#PRI2)ETOPS SIGNIFICANT SYSTEM---. GROUNDED - YES. (RESOLVED ON W/O: 1968889 TASKCARD: N/R-00003 ) REMOVED AND REPLACED RIGHT PACK FLOW CONTROL AND SHUTOFF VALVE. LEAK AND OPS CHECK GOOD. REF AMM 21-51-01. THIS CLEARS THIS TSR. SEAMC ROBERT NOTIFIED. PART VERIFIED WITH AIPC.
WHILE ACCOMPLISHING T/C 78273000 FAULT CODE APPEARED ON #2 ENGINE FAULT CODE# 75-20462. THE HPTACC DEMCND AND POSITION SIGNALS DISAGREE (ECONOMIC FAULT) MUST BE CORRECTED IN 500 FLT HOURS. GROUNDED - YES. ON DEFERRAL.
#2 SOURCE OFF LIGHT ILLUMINATED WHEN APU GEN PUT ON BUS. DID NOT CLEAR UNTIL APU REMOVED FROM BOTH GEN BUSSES AND RECONNECTED. GROUNDED - YES. PERFORMED FIM SOURCE OFF LIGHT ILLUMINATES WITH GRD POWER AVAILABLE TO ON POSITION AND APU OPERATING VERIFIED SOURCE OFF LIGHTS OPERATES NORMAL WHEN APPLIED POWER FROM APU GENERATOR AS PER FIM 24-21 TASK 823.
RIGHT PACK LIGHT ILLUMINATED ON PUSH BACK, R PACK TEMP SHOWS OFF SCALE HOT, UNABLE TO RESET. GROUNDED - YES. ACCOMPLISHED PACK TEMP CONTROL BITE PROCEDURE PER FIM 21-62 TASK 801. LH CONTROLER SHOW RAM AIR FAULT & RIGHT CONTROLLER THIS PACKS TCV. ACCOMPLISHED RESET OF TCV PER FIM 21-62 TASK 831. INSPECTED RIGHT TCV AND MANUALLY OPERATED WITH NO DEFECTS NOTED. ACCOMPLISHED TRIP RESET & REACCOMPLISHED PACK TEMP CONTROL BITE. BOTH CONTROLLER SHOW GO GREEN. ACCOMPLISHED REPAIR CONFIRMATION OF FIM 21-62 TASK 849. BOTH PACK TEMPURATURE SEDY AT 30 WITH NO PACK LIGHT ILLUMINATED. AIRCRAFT OK FOR SERVICE. SEAMC STEVE NOTIFIED.
RIGHT PACK LIGHT ILLUMINATED AND DOES NOT CLEAR WITH MASTER CAUTION RECALL RESET. GROUNDED - YES. ACCOMPLISHED FIM 21-53 TASK 821. PACK LIGHT RESETS AND OPS TEST NORMAL REF. 21-62 TASK 801. NO FAULTS ON EITHER CONTROLLER.
LEFT PACK LIGHT ILLUMINATED AFTER RECALL. EXTINGUISHED WHEN RESET. GROUNDED - YES. (RESOLVED ON W/O: 1963712 TASKCARD: N/R-00004 ) ACCOMPLISHED FIM 21-53 TASK 821 AND PACK/ZONE TEMPERATURE CONTROLLER BITE PER AMM 21-61-00-700-806-002 NO FAULTS NOTED. RAN PACKS FOR 10 MINUTES AND RE-ACCOMPLISHED PACK/ZONE TEMPERATURE CONTROLLER BITE, STILL NO FAULTS NOTED AND PACKS OPERATED NORMALLY. A/C RELEASED FROM MEL 21-32B C/N 31004506 REMOVED SEAMC MITCH NOTIFIED.
WITH APU AIR AND PACKS ON, R/H PACK LIGHT ILLUMINATED WILL NOT RESET. GROUNDED - YES. PERFORMED PACK/ZONE TEMPERATURE CONTROLLER #2 BITE PROCEDURE FOUND FAULT "THIS PACK TCV" ILLUMINATED AS PER FIM 21-62 TASK 801 PERFORMED MAINTENANCE PROCEDURE FOR MEL 21-33E NO CHANGE, REQUIRES FURTHER TROUBLESHOOTING. TOMAS ICEDO 60047 07/18/2023.DUE TO SPURIOUS RESULTS WHILE TROUBLESHOOTING, R & RD ZONE TEMP CONT #2 PER 21-61-20 AND R/H TCV PER 21-51-10. C/B'S PULLED/TAGGED & UNTAGGED/RESET (4). ALL OPS CKS NML, GND VERIFICATION SUCCESSFUL, SEAMC JARRED NOTIFIED.
#2 MAIN TANK FQIS FAILS SYSTEM TEST REF AMM 28-41-00-730-801. TANK UNITS 2, 3, AND 5 ARE OUT OF ACCEPTABLE VALUES. GROUNDED - YES. (RESOLVED ON W/O: 1960790 TASKCARD: N/R-00007 ) INITIATED MIG-2C 40-0038935. REMOVED & REPLACED #2 FUEL TANK UNITS 2, 3 & 5. ALL APPLICABLE TESTS PASS. NO LEAKS NOTED FOR PANELS 632BB, 632CB & 632EB. REF. AMM 28-41-21. MIG-2C 40-0038935 COMPLETE. PULLED & RESET 9 C/B'S. REMOVED PLACARDS. MTX PROCEDURES REVERSED. THIS CLEARS MEL 28-6B & 28-12B C/N 14010506.
FA REPORTS L1 DOOR DIFFICULT TO CLOSE. GROUNDED - YES. PERFORMED FORWARD ENTRY DOOR TEST REF B737-800 AMM 52-11-00. TEST FAIL, TORQUE TO CLOSE L1 DOOR EXCEEDS LIMITS. PERFORMED GVI OF CENTERING GUIDE AND TRACK. NO DEFECTS NOTED. PERFORMED FORWARD ENTRY DOOR SYSTEM TEST REF AMM 52-11-00, FOUND 2 FORWARD STOP PINS AND 2 AFT STOP PINS OUT OF ADJUSTMENT. ADJUSTED STOP PINS REF AMM 52-11-00. PERFORMED FWD ENTRY DOOR TORQUE TEST REF AMM 52-11-00. DOOR TORQUE WITHIN LIMITS AND ALL DIMENSIONS WITHIN LIMITS.
COVER FOR EXIT LIGHT L1 DOOR BROKEN OFF. GROUNDED - YES. REINSTALLED L1 DOOR EMERGENCY EXIT LIGHT COVER AS NEEDED.
APU FAILED TO START @ 380 FAULT LIGHT FOR 4 MINS. APU GOOD START. GROUNDED - YES. ACCOMPLISHED APU BITE TEST FOUND MAINT MSG 49-31016 OVERTEMPERTURE SHUT DOWN. APU STARTS NORMAL REF LP 60189434.
APU HAS REPORT OF MULTIPLE CSS ATTEMPTS WITH FAULT LIGHT AND FAULT MESSAGE 49-31016 INSTALLATION TASK AFFECTS APU ON DEMAND IN-FLIGHT START CAPABILITY. UPON COMPLETION, CONTACT MAINTENANCE CONTROL AND REPORT THAT THIS TASK HAS AFFECTED APU IN-FLIGHT START CAPABILITY, MEL 49- 99A IS REQUIRED PRIOR TO FLIGHT. GROUNDED - YES. REMOVED AND REPLACED APU FUEL CONTROL UNIT PER AMM 49-31-11. REMOVED AND REPLACED APU LUBE MODULE PER AMM 49-91-11OPS TEST GOOD. LEAK TEST GOOD. THIS CLEARS TSR714607.
APU FAILED START AT FL380. APU FAULT LIGHT ILLUMINATED, THEN EXTINGUISHED AFTER FIVE MINUTES. SUCCESSFUL APU START AT FL 320 45 MINUTES AFTER FIRST ATTEMPT. GROUNDED - YES. PER CARL SEAMC, COLD SOAK START SUCCESSFUL. THIS CLEARS MEL49-99E.
FAULT CODE 73-11282 EEC CHANNEL IS NOT ENERGIZED WITH THE ALTERNATOR VOLTAGE. SHORT TIME FAULT. ENG #2. GROUNDED - YES. INTERROGATED FMC CDU #2 ENG AND NO FAULTS FOUND AT THIS TIMECLEARS PLT C/N 26001506 JEFF NOTIFIED.
R/H PACK LIGHT ILLUMINATED ON GROUND, PACKS OFF. GROUNDED - YES. BITE CHECK FLAGS RH PACK TCV. REMOVED & REPLACED RH TCV REF B737-800 AMM 21-51-10. OPS CHECK & LEAK CHECK GOOD.
INFLIGHT LEFT CTR TANK PUMP LOW PRESSURE INDICATION WITH 2500 LBS IN CTR TANK. GROUNDED - YES. ACCOMPLISHED FUEL BOOST PUMP OPERATIONAL TEST REF AMM 28-22-41-710-801 SYSTEM OPS CHECKS NORMAL... GROUND VERIFICATIONS CHECKS GOOD.
#1 LEFT CENTER PUMP LOW PRESSURE. GROUNDED - YES. RESET CB. GOOD VOLTAGE AT PUMP CONNECTOR. ALSO VERIFIED PUMP SOUNDS WEAK COMPARED TO THE OTHERS J. FARREN 24716REMOVED AND REPLACED CTR TANK LH BOOST PUMP WITH SERVICEABLE UNIT IN REFERENCE TO AMM 28-22-41. REQUIRES OPS CHECK AND LEAK CHECK C.HILBERN 52979DISCONNECTED AND RECONNECTED AILERON PCU POGO FOR ACCESS REFERENCE AMM 27-11-71. C.HILBERN RII J. MEYER 77302.OPS CHECK AND LEAK CHECKS GOOD AT THIS TIME. THIS CLEARS MEL 28-2E. MX ACTIONS REVERSED, PLACARDS REMOVED SEAMC CARLOS NOTIFIED.
LEFT CENTER FUEL PRESSURE LOW PRESSURE LIGHT ILLUMINATED AFTER TAKE OFF AND REMAIND ON WITH ABOUT 500 LBS REMAINING IN CENTER TANK. GROUNDED - YES. REMOVED AND REPLACED LEFT CENTER FUEL BOOST PUMP I.A.W. B737-800 AMM 28-22-41.
AFTER ENGINE START ON MC RECALL L PACK LT ILLUMINATED. EXTINGUISHED ON RESET LIST COMPLIED WITH. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 21-53 TASK 821 AND PERFORMED PACK TEMPERATURE CONTROL BITE PROCEDURE PER FIM 21-62 TASK 801 CONTROLLER FAULT FOUND ON THE RAM AIR. REPEATED BITE PROCEDURE, NO FAULTS FOUND.
ON GROUND TAXING IN BOTH FMC WERE NOT AVAILABLE ON THE MCDUS FOR APPROX 3 MINS. GROUNDED - YES. C/W FMC RESET PER B737-800 FIM 34-61-836. OPS TEST NORMAL.
AT GATE PACK LIGHT ILLUMINATED W/ PACK OFF. WILL NOT RESET. GROUNDED - YES. R PACK/TEMP CTRL FAULTED "TCV-THIS PACK". FAULT CLEARED RAN AC FOR 2 MINUTES. BITE CHECK ON PACK ZONE TEMP CTRL NML, REF B737-800 FIM 21-62 TASK 801.
FMC FAIL ON CAPTAIN AND FO SIDE, VTK FLAG ON CAPTAINS NAV DISPLAY. GROUNDED - YES. PERFORMED B737-800 FIM 34-61 TASK 836. RESET AND CLOSED ALL C/B. OPS CHECK GOOD AT THIS TIME.
CONT CAB ZONE TEMP LIGHT ILLUMINATES ON RECALL RESETS WITH MASTER CAUTION PRESSED. GROUNDED - YES. REMOVED AND REPLACED THE CONTROL CABIN ZONE TRIM AIR MODULATING VALVE ASSY. OPS AND BITE CK NORMAL, NO LEAKAGE FOUND. REF B737-800 AMM 21-61-21.
CREW REPORTS FUEL LEAK UNDER #2 ENGINE. GROUNDED - YES. REMOVED & REPLACE HPTACC OF ENG 32 IAW B737-800 AMM 75-21-01.
ON RECALL CONT CAB ZONE TEMP LIGHT ON, MASTER CAUTION RESET LIGHT GOES OUT. GROUNDED - YES. ACCOMPLISHED PZTC BITE AND HAD "FLT DECK TCV" FAULT ON PREV FLIGHT. FAULT CLEARED AND OPS TEST PASS REF B737-800 FIM 21-62 TASK 801.
#1 REFUEL QTY INDICATOR INTMT STUCK IN TEST. GROUNDED - YES. CONFIRMED INDICATOR STUCK IN TEST ONCE TEST SWITCH IS ENGAGED. REMOVED & REPLACED #1 TANK WING REFUEL QTY INDICATOR PER B737-800 AMM TASKS 28-41-61-000-801 & 28-41-61-000-801 & 28-41-61-400-801.
CONT CAB ZONE TEMP ILLUMINATES ON RECALL - EXTINGUISHES ON RESET. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 21-61 TASK 861. FOUND CABIN TEMP SENSOR & FILTER COVERED IN DUST & DEBRIS. CLEANED CABIN TEMP SENSOR & CHANGED FILTER. BITE TEST OF BOTH PZTC'S GOOD. OPS CK GOOD. ORIG SUBMISSION DATE: 1/12/2023
#2 ENG SERVO FUEL HEATER LEAKING. GROUNDED - YES. REMOVED #2 ENG SERVO FUEL HEATER REF B737-800 AMM 73-11-01. INSTALLED #2 ENG SERVO FUEL HEATER REF AMM 73-11-07. .
PERFORMED TASK CARD 78273000, ENG #1 HAS FAULT CODE 73-21281 EEC CHANNEL IS NOT ENERGIZED WITH THE ALTERNATOR VOLTAGE. SHORT TIME. GROUNDED - YES. INTERROGATE FMC FOR FAULTS, FAULT MSG 73-21281 LOGGED ON FLT LEG # 0,1,2 AND 4. ACCOMPLISHED B737-800 FIM 73-27 TASK 804 AND 805. ALL RESISTANCE CHECKS ARE WITHIN ACCEPTABLE LIMITS GVI OF ELECTRICAL CONNECTORS NML, NO FAULT FOUND. REMOVED AND REPLACED EEC REF B737-800 AMM 7321-60/401. EEC SOFTWARE VERIFICATION COMPLETE. EEC INSTALLATION TEST GOOD IAW AMM 73-21-00-700-808-F00, NO FAULTS PRESENT. GROUND VERIFICATION SUCCESSFUL.
FUELER REPORTED NR 1 TANK GAUGE ON WING INOPERATIVE. GROUNDED - YES. VERIFIED - INDICATOR SHOWS "FAIL". IAW AMM 28-41-61, REMOVED & REPLACED NR 1 TANK REFUEL QTY INDICATOR.
#1 DRIVE LIGHT ILLUMINATED DURING CRUISE AT FL350 ACCOMPLISHED ASSOCIATED ASA QRH CHECKLIST. GROUNDED - YES. REF. B737-800 WDM 24-11-11-2 PG2 SHT 1 RMVD DP1206 AT IDG AND FOUND PIN 6 SHORTED TO CONNECTOR SHELL OF DP1206. WIRE OPENS WHEN HARNESS FLEXED A CERTAIN WAY. REF B737-800 AMM 71-51-03, REMOVED/REPLACED ENG. HARNESS MW0312.
REF T/C #SBCFM56-7B-72-1074-1 ON WING BORESCOPE INSPECTION OF METALLIC, HYBRID VSV SYSTEM FOR ROTOR TO STATOR CONTACT. FOUND STAGE 3 J-HOOK AT 6 OCLOCK WORN COMPLETELY THROUGH. GROUNDED - YES. ACCOMPLISHED ENGINE REMOVAL OF ESN # 897-310 REF T/C # 7847000. DEFECTS TRANSFERRED TO S/O # 1935880.
DURING ACCOMPLISHMENT OF ASA TC 78273000 IN W/O 1934974 FOUND FAULT 79-31341, OIL PRESS SIGNAL DISAGREE (SHORT TERM) AND 79-11091 ENGINE OIL PRESSURE SIGNAL OUT OF RANGE (SHORT TERM) ON ENG #1. REF ASA L/P 60382685. GROUNDED - YES. INTERROGATE FMC FOR ENGINE #1 EXISTING FAULT AND FAULT HISTORY, FAULTS ARE ACTIVE. REMOVED AND REPLACED OIL PRESSURE. REF B737-800 AMM TASK 79-32-01-400-801-F00.
DURING CLIMB LT A/C PACK LIGHT ILLUMINATED. RAN THE QH PACK CHECKLIST PAT LT EXTINGUISHED AFTER TRIP RESET WITHIN A COUPLE MINUTES PACK LT ILLUMINATED AGAIN . RAN PACK QRH CHECKLIST AGAIN. TRIP RESET EXTINGUISHED THE LT. CHECKED LEFT PACK TEMP. STARTED RISING AGAIN RIGHT AWAY UNTIL PACK LT CAME ON A THIRD TIME. SHUT DOWN LEFT A/C PACK IAW QRH PRESSURIZATION NORMAL. GROUNDED - YES. FLAP SWITCH CHECKS GOOD, CONNECTOR D46040 PIN M TO GND DURING SEVERAL FLAPS UP AND NOT UP CYCLES IAW WDM 21-51-14. LH DEFLECTOR DOOR FAILS TO STOW AT STEP (9)A AMM 21-51-00-730-802 RADA OP TEST. DEFECTOR DOOR SLOWLY MOVES TOWARD STOWED THEN STOPS HALF WAY. RAM AIR SYSTEM OPS TESTED GOOD IAW AMM 21-51-00-730-802. BITE CHECKED TEMP CONTROL GOOD. RAN PACK, NO FAULTS NOTED. ORIGINAL SUBMISSION DATE: 12/5/2022
IN FLIGHT, LEFT PACK LIGHT. RAN CHECK LIST AND LITE RESET W/TRIP RESET. LIGHT CAME BACK ON 10 MIN LATER, RAN SAME CHECK LIST & LITE STAYED OUT. GROUNDED - YES. S1051 FLAP SWITCH CHECKS GOOD CONNECTOR D46040 PIN M TO GND DURING SEVERAL FLAPS UP AND NOT UP CYCLES REF B737-800 WDM 21-51-14. LH DEFLECTOR DOOR FAILS TO STOW AT STEP (9)A AMM 21-51-00-730-802 RADA OP TEST. DEFECTOR DOOR SLOWLY MOVES TOWARD STOWED THEN STOPS HALF WAY. RAM AIR SYSTEM OPS TEST GOOD REF AMM 21-51-00-730-802. BITE CK OF TEMP CONTROL GOOD. RAN PACK, NO FAULTS NOTED. ORIG SUB DATE: 12/5/2022
IN FLIGHT, LEFT PACK LIGHT. RAN CHECK LIST AND LITE RESET W/TRIP RESET. LIGHT CAME BACK ON 10 MIN LATER, RAN SAME CHECK LIST & LITE STAYED OUT. GROUNDED - YES. S1051 FLAP SWITCH CHECKS GOOD CONNECTOR D46040 PIN M TO GND DURING SEVERAL FLAPS UP AND NOT UP CYCLES REF B737-800 WDM 21-51-14. LH DEFLECTOR DOOR FAILS TO STOW AT STEP (9)A AMM 21-51-00-730-802 RADA OP TEST. DEFECTOR DOOR SLOWLY MOVES TOWARD STOWED THEN STOPS HALF WAY. RAM AIR SYSTEM OPS TEST GOOD REF AMM 21-51-00-730-802. BITE CK OF TEMP CONTROL GOOD. RAN PACK, NO FAULTS NOTED. ORIG SUB DATE: 12/5/2022
MACH TRIM FAIL ILLUMINATED ON RECALL CANCELS WITH RESET. GROUNDED - YES. PERFORMED B737-800 FIM 22-11 TASK 801 FOUND FAULT MSG 22-11334 ON LEG 2, RESET 2 EACH C/B'S. RAN MACH TRIM SYSTEM TEST MULTIPLE TIMES, ALL TEST PASSED. ALSO REF FIM 22-16 TASK 835, TEST PASSED.
WHILE DOING FAN BLADE LUBE ASA T/C # 78472010, FOUND # 1 ENG FAN BLADE SPACERS # 12,18,21 AND 22 ARE DISBONDED. GROUNDED - YES. REMOVED & REPLACED #1 ENG FAN BLADE SPACERS #'S 12,18,21, & 22 PER ASA T/C 78472010.
LH PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL. LIGHT EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED LH RAM AIR INLET ACTUATOR IAW B737-800 AMM 21-51-21.
HF RADIO #2 DISPLAYING "FAIL". GROUNDED - YES. REPLACED #2 HF TRANSCEIVER REF B737-800 AMM 23-11-21.
PRIOR TO DESCENT, LEFT PACK LIGHT ILLUMINATED DURING MASTER CAUTION RECALL AND EXTINGUISHED WHEN MASTER CAUTION SYSTEM WAS RESET. GROUNDED - YES. C/W LEFT PACK LIGHT ON B737-800 FIM 21-53 TASK 821 & PACK TEMPERATURE CONTROL BITE PROCEDURE PER FIM 21-62 TASK 801, NO FAULTS FOUND. LEFT PACK LIGHT REMAINS EXTINGUISHED.
L PACK LIGHT ON RECALL, EXT ON RESET. GROUNDED - YES. PERFORMED BITE CHECK ON TEMP CONTROLLER FOUND RAM AIR ACTUATOR FAULT. CLEARED FAULT, PERFORMED BITE CHECK SEVERAL MORE TIMES, FAULT IS NO LONGER PRESENT REF B737-800 AMM 21-51-00-700-803.
#1 ENGINE VIBRATION INDICATION SYSTEM UNABLE TO ACQUIRE A BALANCE SOLUTION. GROUNDED - YES. REPLACED NACELLE WIRING HARNESS (MW0313) PER ASA TSR713201 STEP 13.
DURING HARNESS INSPECTION FOUND MW311 CHAFFED THROUGH BRAID. (REF ASA TSR713179) GROUNDED - YES. REPLACED MW0311 HARNESS REF B737-800 AMM 73-21-06-400-802-F00.
#1 ENGINE TREND DATA SHOWS LOW PRESSURE ROTOR VIBRATION LEVELS RISING AFTER LAST FAN LUBE AND ONE BLADE PAIR CHANGE. GROUNDED - YES. INSTALLED NEW WEIGHT CONFIG AS FOLLOWS. LOC 9; REMOVED P13, INSTALLED P14. LOC 12; REMOVED P14, INSTALLED P11. LOC 13; REMOVED P14, INSTALLED P13. LOC 14; REMOVED P14, INSTALLED P11. LOC 17; REMOVED P13, INSTALLED P14. REF B737-800 AMM 71-00-00 PER STEP 3 OF TSR. ENGINE REQUIRE VIBE SURVEY. VIB SURVEY SHOWS VIBS AT 2.5+. ATTEMPTED 14B. A/C ONLY CAPTURES 2-3 SPEED BIXS. NO IMPROVEMENT AFTER SOLUTION IMPUTED. PLATFORMS WERE REPLACED DUE TO DAMAGE FROM SHIM CONTACT. REF ASA LP 60395750. PERFORMED BLAMAP AND INCORPORATED RESULTS DURING FAN BLADE INSTALLATION. RETURNED ALL SPINNER WEIGHTS TO NOMINAL AND CONFIGURED AVEM TO MATCH ACTUAL WEIGHTS. REF AMM 71-00-00-750-808-F00. VIBE AFTER REMAP 1.4, AEVM ONLY CAPTURING 1 VIBE SPEED. (REF TSR713169)
#4 FAN BLADE FAILED ULTRASOUND INSPECTION BLADE #16 REQUIRED CHANGE DUE TO PAIRED MATCH. GROUNDED - YES. REMOVED AND REPLACED #4 AND #16 BLADE REF B737-800 AMM 72-21-02 TEST 7 C/W REF W/O 1918061, T/C 78472010 REACCOMPLISHED ULTRASOUND ON NEW BLADES NO DEFECTS NOTED REF SB CFM56-7B-72-1033-1.
FORWARD SERVICE DOOR R-1 DOOR DIFFICULT TO OPEN. GROUNDED - YES. REMOVED & REPLACED R-1 DOOR SNUBBER REF B737-800 AMM 52-41-51.
FUELER REPORTS #1 TANK INDICATOR INOP. GROUNDED - YES. REMOVED AND REPLACED #1 FUEL QNTY IND PER B737-800 AMM 28-41-61, OPS CK GOOD.
AFTER TAKEOFF #1 MAIN FUEL TANK AFT PUMP LOW PRESSURE LIGHT ILLUMINATED. GROUNDED - YES. INSPECTED AND TROUBLESHOOT IAW B737-800 FIM 28-22 TASK 814. REMOVED AND REPLACED #1 MAIN TANK AFT BOOST PUMP AND OPS CHECK IAW B737-800 AMM 28-22-14. NORMAL INDICATION RESTORED. GROUND VERIFICATION GOOD. SEAMC SCOTT NOTIFIED. ACFT OK FOR SERVICE.TSAR174M.
RH WING OB FLAP IB ROLLER FITTING CLEVIS WORN. GROUNDED - YES. REPAIRED DAMAGE IAW B737-800 SRM 57-51-02-2R-2.
L/H HORIZONTAL LOWER SKIN CRACEKD T STA 101, 28 INCHES FWD OF REAR SPAR. GROUNDED - YES. REPAIRED DAMAGE IAW B737-800 SRM 55-10-01-2R-11 REPAIR 11 THIS IS A CAT B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 FLIGHT CYCLES WITH AN INSPECTION INTERVAL OF 9000 FLIGHT CYCLES.
#2 ENG SPINNER FRONT CONE MISSING PAINT. GROUNDED - YES. REMOVED AND REPLACED #2 ENG SPINNER FRONT CONE REF ASA T/C 78472010.
WHILE PERFORMING ENGINE WASH ON #1 ENG HIGH STAGE VALVE LOCKOUT MECHANISM SEIZED IN THE LOCKED POSITION. GROUNDED - YES. REMOVED AND REPLACED #1 ENG HIGH STAGE VALVE REF B737-800 AMM 36-11-06. OPS/LEAKS CHECK GOOD.
DURING ACCOMPLISHMENT OF T/C 78273000 FOUND #1 ENG SHORT TIME MAINT MSG. # 75-30801 T25 SIGNALS DISAGREE. GROUNDED - YES. REPLACED NEW T25 SENSOR & INSTALLATION TEST GOOD B737-800 AMM 73-21-02/401, OPENED & CLOSED FAN COWL AND TR AMM 73-23-07 AMM 78-31-00.
FAULT CODE MSG # 75-20801 ON ENG #1 T25 SIGNALS DISAGREE SHORT TERM FAULT DEFERRED PER T/C 78273000. GROUNDED - YES. REPLACED #1 EEC REF B737-800 AMM 73-21-60-400-801-F00. EEC BITE FAILED REF AMM 73-21-00-700-804-F00. SHOWS MSG 77-20861 BOTTOM LEFT EGT SIGNAL OUT OF RANGE. CLEANED LOWER LH T49.5 SENSOR & J9/J10 HARNESS CONNECTIONS REF AMM 77-21-00-140-801 & AMM 73-21-06-400-803-F00. EEC TEST PASSED. RAN #1 ENG & RE-RAN EEC TEST REF AMM 71-00-00-700-808-F00 EEC TEST PASSED.
WHILE PERFORMING T/C 78273000 FOUND SHORT TIME FAULT MSG #75-10801 T25 SIGNALS DISAGREE ON ENGINE #1. GROUNDED - YES. REMOVED & REPLACED PT25 SENSOR IAW B737-800 AMM 73-21-02. NO DEFECT NOTED.
R1 DOOR EXTERIOR EMERGENCY LIGHT INOP. GROUNDED - YES. RE-LAMPED R1 DOOR EXTERIOR EMERGENCY LIGHT REF B737-800A MM 33-51-04 OPS CHECK GOOD.
CONT CAB ZONE TEMP ILLUMINATES ON MASTER CAUTION RECALL. LIGHT EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. REF B737-800 FIM 21-62 TASK 842, #2 PZTC PREV FLT LOGGED FLT DECK TRIM VALVE FAULT, PZTC BITE VERIFY TESTED GOOD W/O FAULTS. VERIFIED BOTH PACKS OPS CHECKED NORMAL ON GND IN ALL TEMPERATURES RANGE.
L ELEV PITOT LIGHT ON WHEN TAXING TO THE GATE. GROUNDED - YES. L ELEV PITOT LIGHT "OUT" AND OPERATING NORMAL. PULLED C/B FOR L ELEV PITOT HEATER AND LIGHT ILLUMINATED. RESET BREAKER. DUE TO HISTORY AND REPAIR INFORMATION ON WINDOW AND PITOT HEAT PANEL, REPLACED P5-9 PANEL PER B737-800 AMM 30-41-41. L ELEV PITOT LT ILLUMINATES ONLY IN "AUTO" POSITION. FOUND DAMAGED WIRE BEHIND P18-3 PANEL. REPAIRED WIRE W0018-0152-22 AND RESECURED BUNDLE TO PREVENT FURTHER CHAFFING PER B737 SWPM 20-10-13. CLOSED OUT PANEL P18-3 AND REMOVED ALL FOD. OP CHK OF PITOT HEAT SYSTEM IN AUTO MODE PER AMM 30-31-00 REQ. P5-9 INSTL TEST PASS AMM 30-41-41.
AT AROUND 100 KTS ON TAKEOFF HEARD A POP AND GOT A L ELEV PITOT CAUTION- REMAINED CLEAR OF ICING CONDITIONS AND ALL OTHER INDICATIONS WERE NORMAL. GROUNDED - YES. CKD AND FOUND LEFT PITOT ELEV HEATER C/B OUT ON P18-3 PANEL. OPENED C/B PANEL INSP. AREA NO DEFECTS NOTED. RESET C/B L ELEV LIGHT REMAINS ON WHEN A HEATER TURN ON. REMOVED & REPLACED LEFT ELEVATOR PITOT PROBE REF B737-800 AMM 27-31-94. ACCOMP ELEVATOR PITOT SYS LEAK TEST LEAK CK GOOD REF B737-800 AMM 27-31-17-790-801. LEFT ELEV PITOT LIGHT STILL ON. PERFORM LEFT ELEV PITOT LIGHT IS ON FAULT ISOLATION. CK'D WIRING ON CONNECTOR D 644 AND C/B C236 NO DEFECTS REF B737-800 WDM 30-31-11. RESISTANCE CK OF LEFT ELEV PITOT PROBE CK GOOD REF B737-800 FIM 30-31 TASK 805. REMOVED & REPLACED WINDOW/PITOT HEAT MODULE REF AMM 30-41-41. ACCOMPLISHED PITOT PROBE, AOA SENSOR AND TAT PROBE HEATER SYS TEST GROUND VERICATION TEST GOOD. LEFT ELEV PITOT LIGHT OUT AND LEFT ELEV PITOT OP'S CK GOOD HEAT ON. REF AMM 30-31-00-730-801.
AUX PITOT LIGHT ILLUMINATED ON APPROACH INTO KDEN. LIGHT DID/DOES NOT EXTINGUISH. GROUNDED - YES. REMOVED AND REPLACED AUX PITOT PER B737-800 AMM 34-11-01, PERFORMED AUX LEAK TEST PER AMM 34-11-00-790-812 OPS CHECK GOOD.
FA REPORTS OVERWING EXIT SIGN COVER MISSING. GROUNDED - YES. APPLIED NON FLAMMABLE TAPE OVER OPENING. EMERGENCY EXIT LIGHT OPS TEST NORMAL.
ENG #1 SHORT TERM FAULT 75-30401. VSV POSITION SIGNALS DISAGREE. DEFER PER TC 78273000. GROUNDED - YES. REMOVED & REPLACED #1 ENG RH & LH VSV ACTUATORS & BELLCRANK ASSYS REF B737-800 AMM 75-31-01, AMM 75-32-00 & EA 800-72EA-24100.
WHILE PERFORMING TC 78472000 FOUND EDP HYD FEED HOSE LEAKING FROM QUICK DISCONECT AT PYLON. GROUNDED - YES. REMOVED AND REPLACED THE EDP HYD SUPPLY HOSE OF #1 ENG. DID NOT HELP, CONTINUES TO LEAK. EMP 48859 11/20/2021. REMOVED AND REPLACED HOSE (EDP HYD) LINE OP CHECK GOOD NO LEAKS. REF PBM. 71-00-02.
HF FAIL LIGHT BOTH RADIOS. GROUNDED - YES. PERFORMED HF COMM SYSTEM BITE PER B737-800 FIM TASK 23-11-00-810-801, OPS CHECK GOOD, HF FAIL LIGHTS EXTINGUISHED ON RADIOS.
FOUND FAULT CODE 75-20801 ON #1 ENG T25 SIGNALS DISAGREE SHORT TIME FAULT DEFERRED PER T/C 78273000. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE PT25 SENSOR IAW B737-800 AMM 73-21-02-000-801-F00 AND AMM 73-21-02-400-801-F00, ETOPS GROUND VERIFICATION GOOD.
WHILE WORKING ON T/C 78273000 FOUND MSG #75-30401 THE VSV POSITION SIGNALS DISAGREE, SHORT TIME, ENG #1. GROUNDED - YES. REPLACED EEC ON LOG PAGE 60215530 WHICH WAS DONE FOR THAT LOG PAGE FOR FAULT MSG #75-30801 T25 SIGNALS DISAGREE AND THIS ONE.
WHILE WORKING ON T/C 78273000 FOUND MSG #75-30801 T25 SIGNALS DISAGREE. SHORT TIME, ENG #1. GROUNDED - YES. DUE TO HISTORY REMOVED AND REPLACED #1 EEC IAW B737-800 AMM 73-21-60-000-801-F00 AND AMM 73-21-60-400-801-F00, SOFTWARE VERIFIED CORRECT IAW B737-800 IPC 73-21-60. ETOPS GROUND FUNCTIONAL CHECKS GOOD IAW AMM 73-21-00-700-802-F00.
WHILE WORKING T/C 78273000 - ENG #1 FAULT MESSAGE - 75-20801. T25 SIGNALS DISAGREE. SHORT TERM FAULT. DEFER PER T/C 78273000. GROUNDED - YES. REFERENCE LOGPAGE 60269685 REMOVED AND REPLACED J9 AND J10 HARNESSES REF B737-800 AMM 73-21-06-400-802-F00 STEPS E(1,2). PERFORMED FADEC TEST REF AMM 73-21-00-700-802-F00 STEPS (D) 3.A,B,C AND E. PERFORMED REPAIR CONFIRMATION REF B737-800 FIM 75-33 TASK 805. PERFORMED ACTUATORS TEST REF AMM 71-00-00-700-807-F00, ALL TESTS PASS, ETOPS GROUND VERIFICATION SUCCESSFUL.
FAULT CODE 75-30401 - THE VSV POSITION SIGNALS DISAGREE. ENG #1. SHORT TERM FAULT. DEFERR PER T/C 78273000. GROUNDED - YES. REFERENCE LOGPAGE 60269685 REMOVED AND REPLACED J9 AND J10 HARNESSES REF B737-800 AMM 73-21-06-400-802-F00 STEPS E(1,2). PERFORMED FADEC TEST REF AMM 73-21-00-700-802-F00 STEPS (D) 3.A,B,C AND E. PERFORMED REPAIR CONFIRMATION REF B737-800 FIM 75-33 TASK 805. PERFORMED ACTUATORS TEST REF AMM 71-00-00-700-807-F00, ALL TESTS PASS, ETOPS GROUND VERIFICATION SUCCESSFUL.
WHILE WORKING TC 78273000 - ENG #1 FAULT CODE 75-10801. T25 SIGNALS DISAGREE. SHORT TERM FAULT. DEFER PER TC 78273000. GROUNDED - YES. REFERENCE LOGPAGE 60269685 REMOVED AND REPLACED J9 AND J10 HARNESSES REF B737-800 AMM 73-21-06-400-802-F00 STEPS E(1,2). PERFORMED FADEC TEST REF AMM 73-21-00-700-802-F00 STEPS (D) 3.A,B,C AND E. PERFORMED REPAIR CONFIRMATION REF B737-800 FIM 75-33 TASK 805. PERFORMED ACTUATORS TEST REF AMM 71-00-00-700-807-F00, ALL TESTS PASS, ETOPS GROUND VERIFICATION SUCCESSFUL.
WHILE WORKING T/C 78273000 - ENG #1 FAULT MESSAGE - 75-20801. T25 SIGNALS DISAGREE. SHORT TERM FAULT. DEFER PER T/C 78273000. GROUNDED - YES. REMOVED AND REPLACED J9 AND J10 HARNESSES REF B737-800 AMM 73-21-06-400-802-F00 STEPS E(1,2). PERFORMED FADEC TEST REF AMM 73-21-00-700-802-F00 STEPS (D) 3.A,B,C AND E. PERFORMED REPAIR CONFIRMATION REF B737-800 FIM 75-33 TASK 805. PERFORMED ACTUATORS TEST REF AMM 71-00-00-700-807-F00, ALL TESTS PASS, ETOPS GROUND VERIFICATION SUCCESSFUL
WHILE WORKING TC 78273000 - ENG #1 FAULT CODE 75-10401. VSV SIGNALS DISAGREE (POSITION). SHORT TERM FAULT. DEFER PER TC 78273000. GROUNDED - YES. REFERENCE LOGPAGE 60269685 REMOVED AND REPLACED J9 AND J10 HARNESSES REF B737-800 AMM 73-21-06-400-802-F00 STEPS E(1,2). PERFORMED FADEC TEST REF AMM 73-21-00-700-802-F00 STEPS (D) 3.A,B,C AND E. PERFORMED REPAIR CONFIRMATION REF B737-800 FIM 75-33 TASK 805. PERFORMED ACTUATORS TEST REF AMM 71-00-00-700-807-F00, ALL TESTS PASS, ETOPS GROUND VERIFICATION SUCCESSFUL.
WHILE WORKING TC 78273000 - ENG #1 FAULT CODE 75-20401. VSV POSITION SIGNALS DISAGREE. SHORT TERM FAULT. DEFER PER TC 78273000. GROUNDED - YES. REFERENCE LOGPAGE 60269685 REMOVED AND REPLACED J9 AND J10 HARNESSES REF B737-800 AMM 73-21-06-400-802-F00 STEPS E(1,2). PERFORMED FADEC TEST REF AMM 73-21-00-700-802-F00 STEPS (D) 3.A,B,C AND E. PERFORMED REPAIR CONFIRMATION REF B737-800 FIM 75-33 TASK 805. PERFORMED ACTUATORS TEST REF AMM 71-00-00-700-807-F00, ALL TESTS PASS, ETOPS GROUND VERIFICATION SUCCESSFUL.
WHILE WORKING TC 78273000 - ENG #1 FAULT CODE 75-10801. T25 SIGNALS DISAGREE. SHORT TERM FAULT. DEFER PER TC 78273000. GROUNDED - YES. REFERENCE LOGPAGE 60269685 REMOVED AND REPLACED J9 AND J10 HARNESSES REF B737-800 AMM 73-21-06-400-802-F00 STEPS E(1,2). PERFORMED FADEC TEST REF AMM 73-21-00-700-802-F00 STEPS (D) 3.A,B,C AND E. PERFORMED REPAIR CONFIRMATION REF B737-800 FIM 75-33 TASK 805. PERFORMED ACTUATORS TEST REF AMM 71-00-00-700-807-F00, ALL TESTS PASS, ETOPS GROUND VERIFICATION SUCCESSFUL.
"FMC DISAGREE" MESSAGE, THEN CLEARED. GROUNDED - YES. INFO NOTED BY MAINTENANCE.
MOMENTARY VTK FLAG ON CAPTAINS ND WITH LOSS OF LNAV/VNAV, THEN RESET ITSELF. GROUNDED - YES. NO VTK FLAG NOTED AT THIS TIME & NOTED RECOVERY OF SYSTEM & VTK EXTINGUISHED. CREW NOTED F/OS NAV DISPLAY SHOWED NO FLAG. CONSIDERED NUISANCE ERROR REF B737-800 AMM 34-61-00. NO HISTORY 30 DAYS & CREW NOTED THERE WAS NO SOURCE SELECT SWITCHING ACCOMPLISHED.
FLIGHT DECK LEFT FUEL QUANTITY INDICATOR INOP - INTERMITTENTLY. GROUNDED - YES. FQIS BITE INFLIGHTS FAULT LAST LEG SHOWS FAULT 28-41109 ( PROCESSOR FAILED) REF B737-800 FIM 28-41 TASK 801. REF FIM 28-41 TASK 801, 808. FQIS SHOWS NO CURRENT FAULTS. GROUND TEST PASSED.
ENG #1 FAULT CODE 75-30801 - T25 SIGNALS DISAGREE. SHORT TERM FAULT. DEFERR PER T/C 78273000. GROUNDED - YES. ON DEFERRAL.
#2 ENG OIL CAP ORING WORN. GROUNDED - YES. REMOVED & REPLACED #2 ENG OIL O RING PER B737-800 AMM 79-11-01.
WHILE PERFORMING TEST 30-11-12-710-801 FOUND THE #1 ENG TAI VALVE CLICKING. GROUNDED - YES. REMOVED AND REPLACED THE #1 ENGINE TAI VALVE IAW B737-800 AMM 30-11-12-00-400-801. OPS AND LEAK TEST GOOD.
DURING AFTER START CHECKLIST NOTICED DUCT PRESSURE SPLIT WITH LEFT BLEED AIR NEAR ZERO. DISCOVERED LEFT BLEED AIR VALVE C/B POPPED. GROUNDED - YES. ASSOCIATED WORK (REMOVAL AND REPLACEMENT OF MW311 HARNESS ON #1 ENG) ON TSR710969 REF B737-800 AMM 71-51-03. C/B L BLEED AIR VALVE P6-4 A7 COLLAR REMOVED AND RESET; PRSOV OPENED MANUALLY. TEST 7 OF WIRE HARNESS POWER PLANT TEST REFERENCE TABLE NEEDS TO BE ACCOMPLISHED. CONFIRMED CONFIGURATION DEVIATION PROCEDURES REVERSED PRSOV UNLOCKED PER AMM 36-00-00 C/B L BLEED AIR VALVE RESET AND BLEED AIR SWITCH ON #1 ENG ON. RAN AT IDLE AND CONFIRMED BLEED AIR AVAILABLE AND TURNS ON/OFF NORMALLY. PERFORMED TEST FOOTNOTE ITEM *7 EEC TEST PER AMM 71-21-00-700-804 AND TEST PASSED.
AFTER T/O NOTICED LEFT DUCT PRESSURE WAS ABOUT 2 PSI-RIGHT WAS ABOUT 40 PSI. LEVELED OFF AT FL240, ABOUT 0:30 INTO THE FLIGHT, LEFT DUCT PRESSURE JUMPED TO NORMAL PRESSURE ABOUT 40 PSI. NOTICED AN INCREASE IN AIRFLOW IN THE FLIGHT DECK AT THE SAME TIME FROM THE AIR VENTS. GROUNDED - YES. REF B737-800 WDM 36-11-11, FOUND LEFT BLEED AIR VALVE C/B POPPED, UNABLE TO LOCATE ANY SHORT TO GROUND, BAR OPEN/CLOSE COILS WERE 35 & 41 OHMS RESPECTIVELY. FLEXED ENGINE HARNESS, UNABLE TO GET ANY RESISTANCE. VERIFIED POWER & COMMAND WIRING BETWEEN C/B & OVERHEAD PANEL & OVERHEAD PANEL & M324 MODULE. INSTALLED BAR HAS HISTORY OF POPPING C/B WITH NFF. REMOVED & REPLACED BLEED AIR REGULATOR PER B737-800 AMM 36-11-03. PERFORMED PNEUMATIC DUCT PRESSURE SYSTEM TEST PER B737-800 FIM 36-10 TASK 807. SYSTEM OPERATES PROPERLY. GROUND VERIFICATION SUCCESSFUL.
WHILE ACCOMPLISHING T/C NG-36WC-00001 FOUND PRE-COOLER VALVE TO BE OUT OF LIMITS ON #1 ENGINE. GROUNDED - YES. REMOVED AND REPLACED PRE-COOLER VALVE REF B737-800 AMM 36-12-02-400-801/000-801. OPS CK GOOD.
AT LEVEL OFF AT FL 330 THE DUCT PRESSURE HAD A DIFFERENCE OF GREATER THAN 20 PSI. LEFT DUCT PRESSURE WAS APPROX 11 PSI AND RIGHT WAS 49 PSI. WITH ISOLATION VALVE IN OPEN THE PSI WAS 39 PSI ON BOTH SIDES. GROUNDED - YES. REMOVED AND REPLACED #1 ENG PRSOV REF B737-800 AMM 36-11-04, ACCOMPLISHED ASA SUPPLEMENT TASK 36-11-00-700-804 STEPS 1-5C FOUND PRSOV WILL NOT STAY OPEN WHEN MANUALLY OPENING WITH WRENCH, AND PRSOV IS OPEN THE PRECOOLER CONTROL VALVE DID NOT MOVE TO CLOSED POSITION. ACCOMPLISHED T/C NG-36WC-00001, OPS CHECK GOOD, NO FURTHER DEFECTS NOTED.
#1 ENGINE FUEL FLOW INDICATION ERRATIC. FUEL FLOW RANGE FROM 2.31-2.62 AT FL 370. THE FUEL FLOW WOULD INCREASE AND DECREASE VERY QUICKLY. OTHER ENGINE INDICATIONS WERE NORMAL. GROUNDED - YES. REMOVED AND REPLACED #1 ENG FUEL FLOW TRANSMITTER REF B737-800 AMM 73-31-01. OPTS CHECK GOOD NO LEAKS, DEFECTS NOTED AT THIS TIME. A/C OK FOR SERVICE.
#1 ENG B LOOP WILL NOT TEST. GROUNDED - YES. RESET ENG/APU FIRE DETECTION CONTROL MANUAL REF B737-800 AMM 20-60-99. ACCOMPLISHED BITE CHECK IAW B737-800 SIM 26-10 TASK 801 NO DEFECTS NOTED SEAMC CARLOS NOTIFIED.
AFTER ENGINE START LH BLEED DUCT HAD ZERO PRESSURE WITH BLEED SWITCHON. GROUNDED - YES. REMOVE BLEED AIR REGULATOR REF B737-800 AMM TASK 36-11-03-000-801. INSTALL BLEED AIR REGULATOR REF AMM TASK 36-11-03-400-801 LEAK AND OPS CK OK.
BLEED AIR VALVES LEFT CB POPPED. GROUNDED - YES. INSPECTED C/B C796 NO DEFECTS NOTED, INSPECTED CONNECTOR DP1102 NO DEFECTS NOTED REF B737-800 WDM 36-11-11. RESET C/B REF B737-800 AMM 20-60-01, VERIFIED GOOD VOLTAGE ON PINS 5&7 OD DP1102 AND GOOD GND ON PIN 6 REF WDM 36-11-11 OPS CKD BLEED AIR REGULATOR SOLENOID REF AMM 26-21-00 STEP (9) (10) SOLENOID OPS CKD NML.
CONT CABIN ZONE TEMP LIGHT. GROUNDED - YES. REMOVED & REPLACED FLIGHT DECK TRIM VALVE REF B737-800 AMM 21-61-21 OSP & LK CK GOOD ACCOMPLISHED BITE CK NO FAULTS FOUND.
FLT CREW REPORTS HF 1 FAIL IN COMM WINDOW. GROUNDED - YES. PERFORMED HF 1 & 2 BITE TEST PER B737-800 FIM 23-11 TASK 801, OPS CHECK GOOD, HF 1 FAIL LIGHT EXTINGUISHED.
WHILE ACCOMPLISHING MTC 78472010, FOUND #2 ENG #7 & #22 FAN BLADE SPACER WITH DISBONDED ELASTOMERS. GROUNDED - YES. REPLACED #2 ENG #7 AND #22 FAN BLADE SPACERS REF T/C 78472010.
CONT CAB ZONE TEMP LIGHT ILLUMINATED AFTER MASTER CAUTION RECALL. GROUNDED - YES. REF B737-800 FIM 21-62 TASK 832 FOR PZTC 2 FAULT FLT DECK TRIM VALVE. RESET FAULT OPERATED PACKS AND FAULT DID NOT RETURN.
AUTOLAND FAIL AT 30RA WAS ON CENTERLINE BUT DRIFTED ABOUT 50FT LEFT BETWEEN THERE AND TOUCHDOWN. POTENTIAL SIGNAL INTERFERENCE FROM PLANE ON ADJACENT TAXIWAY. APPROACH CONDUCTED IN VFR CONDITIONS, 16R SEA. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 22-11 TASK 825, LAND VERIFY TEST PASS & HGS SYSTEM TEST PASS REF HGS-4000 SMM 34-36-00.
SATCOM LOCK-UP GROUNDED - YES. PERFORMED SATCOM LOCK-UP PROCEDURE PER QRH. SATCOM RESTORED NORMAL.
LEFT FMC FAILED ENROUTE FOR 2 MINUTES THEN CAME BACK ON LINE ON ITS OWN. GROUNDED - YES. LAST FLIGHT, LT FMC FAULTED "PRES POS LAT RATE" INTERMITTENT FAULT. PERF B737-800 FIM 34-61 TASK 836. 1 EA C/B ON P18-2 OPENED, RESE. LT FMC NOW OPS NML. ETOPS GND VERIFICATION TEST SUCCESSFUL.
AUTOPILOT MODE CONTROL PANEL IAS/MACH DISPLAY WINDOW LED HAS DEFECT. GROUNDED - YES. REMOVED AND REPLACED MODE CONTROL PANEL REF B737-800 AMM 22-11-34-400-801, OPS NML PER AMM 22-11-34-740-801. ACCOMPLISHED DFCS MCP LRU REPLACEMENT TEST, GRP BITE 32, ALL TEST PASSED. ACCOMPLISHED DFCS LAND VERIFY TEST, GRP BITE 49, ALL TEST PASSED REF AMM 22-11-00/201.
SATCOM LOCKUP GROUNDED - YES. PERFORMED QRH PROCEDURE, SATCOM RESTORED.
SATCOM LOCK-UP DURING POWER TRANSFER. GROUNDED-YES. RESET USING QRH.
FGCP IAS/MACH STUCK AT 155 KTS. GROUNDED-YES. TASK CARD COMPLIED WITH DURING INITIAL EVALUATION FOUND IAS/MACH SELECTOR KNOB LOOSE. ADJUSTED, CLEANED, AND RE-TIGHTENED SELECTOR KNOB AS REQUIRED, REF B737-800 AMM 22-11-34. AS A PRECAUTION, PERFORMED MCP TEST, REF B737-800 FIM 22-11 TASK 803. OPERATIONS NORMAL. ACCOMPLISHED AMM 22-00-01-730-801.
AFTER THE AFTER START CHECKLIST LT ELEV PITOT ILLUMINATED. GROUNDED-YES. REMOVED & REPLACED THE LT ELEV FEEL SYSTEM PITOT PROBE, PER B737-800 AMM 27-31-94. LEAK TEST GOOD, PER AMM 27-31-17 PITOT HEAT. OPERATIONS CHECKS NORMAL, PER AMM 30-31-00.
SATCOM LOCK-UP. GROUNDED-YES. QRH CHECKLIST ACCOMPLISHED. SATCOM RESTORED NORMAL.
INFORMED DURING MAINTENANCE TOW, LT FMC BLANKED OUT. GROUNDED-YES. ACCOMPLISHED B737-800 FIM TASK 34-61-00-810-801, FMC BITE TEST GOOD.
AUTOTHROTTLES DISENGAGED ON POWER UP DURING T/O ROLL LOW SPEED ABORT UNDER 40 KTS. GROUNDED-YES. A/T LOGGED 22-31687, PERFORMED B737-800 FIM 22-32 TASK 819 A/T SERVO TEST AND BITE IS NORMAL.
NO SAT DISPLAYED ON MCDU MENU PAGE. GROUNDED-YES. COMPLETED SAT COM LOCK UP QRH. SAT PROMPT RESTORED.
SATCOM LOCKUP. GROUNDED-YES. PERFORMED SATCOM LOCKUP QRH PROCEDURE TO RECALL SATCOM PROMPT ON MCDU, SUCCESSFUL.
EXPERIENCED SATCOM LOCKUP. GROUNDED-YES. FOLLOWED QRH 5.4, SATCOM RESTORED.
SATCOM LOCKUP. MISSING SAT ON MCDU MENU PAGE. GROUNDED-YES. COMPLETED QRH SATCOM LOCKUP PROCEDURE FOR MISSING SAT ON MCDU MENU PAGE. RESET SUCCESSFUL.
MASTER CAUTION RECALL, RIGHT PACK LIGHT ILLUMINATED AND RESET WITH MASTER CAUTION RECALL. GROUNDED-YES. REMOVED AND REPLACED RT PACK TEMP CONTROL VALVE. LEAK AND OPS CK NORMAL, REF B737-800 AMM 21-51-10. GROUND VERIFICATION NORMAL.
AUTOTHROTTLES WILL NOT REMAIN ENGAGED. WILL MOMENTARILY ENGAGE, BUT KICKS OFF AFTER 3-5 SECONDS. GROUNDED - YES. INTERROGATED FMC, FOUND MULTIPLE FAULTS FOR ASM 1. REMOVED AND REPLACED AUTOTHROTTLE SERVO MOTOR, IAW B737-800 AMM 22-31-91/401. GROUND VERIFICATION TEST IS GOOD.
RT HORIZ LWR SKIN HAS A CRACK APPROX STA 129, 19" FROM T/E. GROUNDED - YES. REPAIRED HORIZONTAL STAB SKIN IAW SRM 55 10 01 2R 11 REPAIR IS A CAT B REPAIR WITH INSPECTION THRESHOLD OF 56000 CYCLES REPEAT INSPECTION EVERY 9,000 CYCLES.
LT HORIZ LWR SKIN HAS A CRACK AT APPROX STA 147.19" FROM T/E. GROUNDED - YES. REPAIRED HORIZ STAB SKIN IAW SRM 55 10 01 2K 11 REPAIR IS A CAT B REPAIR WITH INSPECTION THRESHOLD OF 56,000 CYCLES REPEAT INSPECTION EVERY 9,0000 CYCLES.
RT ROW 1-15 AISLE LIGHTS AND RT FWD OVERWING ESCAPE LIGHT FAILED OPS TEST. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY POWER SUPPLY M1676 BATTERY PACK IAW AMM 33 51 06 OPS CK GOOD.
R-FMC INOP , FOLLOWED QRH PROCEDURES - NO CHANGE. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 34-61 TASK 836 RT FMC OPS CHECK NORMAL.
AFTER TOUCHDOWN #2 ENGINE FILTER BYPASS LIGHT ILLUMINATED ON OVERHEAD FUEL PANEL. LIGHT EXTINGUISHED AFTER ENGINE SHUTDOWN. GROUNDED - YES. OVHD FUEL FILTER BYPASS ON DURING TAXI IN AND OFF WITH ENGINE OFF. VERIFIED FUEL FILTER SIGNAL DISAGREE MESSAGE WITH EEC BITE. FOUND CONNECTOR DP0803 DISCONNECTED FROM SWITCH S241 AND CONNECTOR WONT LOCK. COMPLIED WITH EA800-73EA-22598. SECURED CONNECTOR OPS CHECK GOOD RH FUEL FILTER BYPASS LITE NOW OUT. PLACED ON PLT DEFERRAL FOR 50 FLT HOURS TO REPLACE CANNON PLUG. CHANGED FUEL FILTER ELEMENT REF B737-800 AMM 73-11-02. NO CONTAMINATION FOUND LEAK CHECK GOOD. REMOVED AND REPLACED #2 ENG J8 HARNESS PER B737-800 AMM 73-21-06/401. PERFORMED ACTUATORS TEST PER AMM 71-00-00-700-807-F00 AND EEC TEST PER AMM 73-21-00-700-804-F00 ALL TESTS PASSED.
LEFT FWD WINDOW OVERHEAT LIGHT ILLUMINATED- STAYED ON AFTER QRH PROCEDURE. GROUNDED - YES. PERFORMED BIT CHECK PER B737-800 FIM 30-41 TASK 812 WITH SENSOR ILLUMINATED. SWAPPED TO SPARE SENSOR- NO HELP, SWAPPED WHCU CONTROL BOX NO HELP REINSTALLED ORIGINAL WHCU CONTROL BOX. REMOVED AND REPLACED LH FWD (L1) WINDOW REF B737-800 AMM 56-11-11 GROUND VERIFICATION SUCCESSFUL. WINDOW OVERHEAT LIGHT REMAINS EXTINGUISHED DURING TEST.
SATCOM LOCK-UP. GROUNDED - YES. RAN QRH SATCOM RESTORED.
LEFT FMC FAILURE OCCURRED DURING FLIGHT. GROUNDED - YES. CW B737-800 FIM 34-61 TASK 807 2 CBS PULLED/RESET OP CK GOOD. FMC SWITCH RETURNED TO NORMAL.
L/H PACK LIGHT ILL. UPON MASTER CAUTION CHECK. L/H PACK LIGHT EXTINGUISHES UPON RESET. GROUNDED - YES. CONFIRMED FAULT, #1 PACK/ZONE TEMP CONTROLLER BITE TEST REF B737-800 AMM 21-61-00-700-806-002 SHOWS HARD FAIL #1 TCV (V139). REMOVED & REPLACED #1 TCV REF AMM 21-51-10, LK CK & OPS CK NML. PULLED & RESET 3 TOTAL C/BS. AIRCRAFT RELEASED FROM MEL 21-32B, REMOVED FLIGHT CREW PLACARD.
AT CRUISE 34,000 ENCOUNTERED A DUAL FMC FAILURE. VTK ILLUMINATED ON BOTH ND'S AND BOTH FMC'S BLANKED. DUAL OPERATION RESTORED BY ITSELF IN APPROX ONE MINUTE. GROUNDED - YES. PERFORMED FLIGHT MANAGEMENT COMPUTER SYSTEM BITE PROCEDURE REF B737-800 FIM 34-61 TASK 801. DETERMINED FAULT INTERMITTENT AND BOTH FMC'S NOW OPERATE NORMAL. OK FOR SERVICE.
APU CT5ATP EGT HAS SHIFTED ABOVE THE 593 DEGREE THRESHOLD AND REMAINS ABOVE THE 605 THRESHOLD. GROUNDED - YES. REMOVED AND REPLACED APU IAW AMM 49-11-00-000-803.
APU SHOWS 0 DUCT PRESSURE. GROUNDED - YES. REMOVED AND REPLACED APU ECU, VERIFIED DUCT PRESSURE IS AVAILABLE, OPS CHECK SUCCESSFUL, NO FURTHER DEFECTS NOTED, REF B737-800 AMM 49-61-12.
FMC DISAGREE LIGHT ILLUMINATED IN FLIGHT. GROUNDED - YES. ACCOMPLISHED FIM 34-61 TASK 835, NO FAULTS FOUND.
LEFT PACK AMBER LIGHT ILLUMINATED ON MASTER CAUTION, IT RESET WITH MASTER CAUTION RESET. COMPLETED QRH CHECKLIST. GROUNDED - YES. RAN PACK ZONE TEMP CONT BITES- #1 SHOW THIS PACK TCV. CLEARED FAULT- FAULT DID NOT COME BACK ON NEXT TEST. RAN PACKS HOT/COLD MULTIPLE TIMES - NO DEFECTS NOTED.
AT CRUISE CAPT FLIGHT DIRECTOR FAILED. NO HUD GUIDANCE QUE. NO FD FLAG. AT FLIGHT LVL 340. HEADING BUG ON CAPT SIDE DOES NOT MOVE ON PFD WHEN KNOB TURNED ON MCP. FLIGHT DIRECTOR CAME BACK AT ABOVE 10000 FEET. GROUNDED - YES. REMOVED MCP PER AMM 22-11-34-000-801. INSTALLED NEW MCP PER AMM 22-11-34-400-801. COMPLIED WITH TEST PER AMM 22-11-34-740-801. HUD TEST NORMAL PER AMM 34-36-00/501.
CA FLIGHT DIRECTOR FAILED DESCENDING THRU FL 320 HEADING BUG WAS FROZEN AT 270 ON CA AND WOULD NOT REENGAGE INITIALLY. FLIGHT DIRECTOR RECOVERED DESCENDING THRU 9000 AND WORKED NORMAL THE REMAINDER OF FLIGHT. F/O FLIGHT DIRECTOR OPERATED NORMALLY THE ENTIRE FLIGHT. GROUNDED - YES. DFCS CHANNEL "A" LOGGED 22-11607 MCP DATA INV NO HISTORY. PERFORMED B737-800 FIM 22-11 TASK 817 AND 22-11 TASK 803. ALL TESTS PASS.
SATCOM LOCKOUT. GROUNDED - YES. PERFORMED PROCEDURES PER QRH. SATCOM CAME BACK WITH NO ISSUES REST OF FLT.
AT CRZ FL 360 RT MAIN AFT FUEL PUMP LOW PRESS LIGHT ILLUMINATED QRH PROCEDURE ACCOMP BOOST PUMP SWITCH TURNED OFF REMAINDER OF FLIGHT. GROUNDED - YES. PERFORMED FIM TASK 28-22 TASK 805, FOUND CB D3 ON P91 PANEL OPEN, PERFORMED TASK 816. RESET CB, OPS CHECK PUMP LOW PRESSURE LIGHT STILL ILLUMINATED. REMOVED AND REPLACED #2 TANK AFT BOOST PUMP REFERENCE B737-800 AMM 28-22-41 PB401 CHECK'S OK REF AMM 28-22-41-710-801.
#1 ENGINE FAILED TO START. GROUNDED - YES. REVERSED MTX PROCEDURES. RIGHT IGNITER TO AC STANDBY BUS, LEFT IGNITER TO AC TRANSFER BUS. PERFORMED IGNITION SYS AUDIBLE TEST PER B737-800 AMM 74-00-00. NO DEFECTS. DUE TO HISTORY REMOVED & REPLACED #1 ENG. R/H IGNITION EXCITER, REF AMM 74-11-01. OPS CHECK FAILED. REMOVED & REPLACED R/H IGNITION LEAD, OPS CHECK GOOD. STARTED #1 ENG. WITH R/H IGNITION SWITCH. ENGINE STARTED NORMALLY.
NO LITE OFF ENG (R) IGN ON ENG #1. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 74-21 TASK 807 NO FAULTS NOTED. IGN SYS AUDIBLE TEST GOOD FOR L & R IGNITERS PER AMM TASK 74-00-00-750-801-F00. AS PRECAUTIONARY, REMOVED AND REPLACED RIGHT IGNITER PLUG REF B737-800 AMM 74-21-02. ACCOMPLISHED #1 ENG RUN (IDLE) USING L & R IGNITERS. NO FAULTS NOTED. GROUND VERIFICATION IS GOOD. CLEARS MEL 74-1E.
NO LIT OFF ON #1 ENG AFTER START LEVER RAISED TO IDLE. GROUNDED - YES. PERFORMED EEC BITE TEST NO FAULTS, (L) (R) IGNITOR TEST PASSED, NO HISTORY 30 DAYS- ENGINE START ON (R) IGNITION GOOD START NO FAULTS, OPS CK GOOD REF B737-800 AMM 71-00-00. DEFECT DESCRIPTION WAS ON RIGHT IGN
CONT CAB ZONE TEMP LIGHT ILLUMINATED AFTER START EXTINGUISHES WITH MSTR CAUTION RESET. GROUNDED - YES. FLT DECK TEMP CONTROL SYSTEM PRIMARY INOP. PERFORMED B737-800 FIM 21-62 TASK 833 STEP E INITIAL EVALUATION. BITE PASSED. CONT CAB ZONE TEMP LIGHT REMAINS EXTINGUISHED ON RECALL.
ON RECALL LEFT PACK LIGHT ILLUMINATED. CLEARS WITH MASTER CAUTION RESET. GROUNDED - YES. PACK TEMP CTL BITE TEST ACCOMPLISHED VERIFICATION OK. NO FAULTS NOTED. B737-800 AMM REF 21-62-TASK 801.
ELEC P5 PANEL HAS ELEC LIGHT ILLUMINATED. GROUNDED - YES. BITE SHOWS STATIC INVERTER FAILED. WOULD NOT RESET. REPLACED THE STATIC INVERTER. OPS CHECKED GOOD. IAW AMM 24-34-21.
RIGHT FWD WINDOW OVERHEAT LIGHT ILLUMINATED INT MIG 2C 40-0008783. GROUNDED - YES. WINDOW HEAT CONTROLLER SHOWS BOTH SENSORS BAD. REMOVED & REPLACED THE R2 WINDOW IAW AMM 56-11-11-000-801 AND AMM 56-11-11-400-821.
TEMP OUTPUT OF LEFT PACK INDICATES OFF SCALE -0 DEGREES CEL (RT PACK IS NOMINAL =20 DEGREE CEL) ALL ZONES COMFORTABLE AND CONTROLLABLE. GROUNDED - YES. CONFIRMED DEFECT. T/S PER B737-800 FIM 21-61 TASK 854. FOUND LEFT PACK TEMPERATURE BULB FAILED. REMOVED AND REPLACED LEFT PACK TEMPERATURE BULB PER B737-800 AMM REF 21-51-60-000-801/21-51-60-400-801. OP'S CKS LEAK CK'S GOOD.
PRIOR TO DESCENT CAPT SIDE VTK FOLLOWED BY LOSS OF FMC ON CDU, CAPT LOSS OF MAP ON MCDU AND FO LOST FMC ON CDU. PRIOR TO COMPLETING QRH BOTH FMC + MAPS RESET, REENGAGED LNAV + VNAV NO OTHER ISSUES. GROUNDED - YES. C/W FMC RESET PROCEDURE REF B737-800 FIM 34-61 TASK 836 FMC OPERATES NORMALLY. A/C OK FOR SERVICE.
MISSING SATCOM SELECTION ON MCDU INFO PAGE. GROUNDED - YES. ACCOMPLISHED RESET PROCEDURE PER QRH. SATCOM SELECTION RESTORED AFTER COMPLETION OF CHECKLIST.
MISSING SATCOM SELECTION ON THE MCDU MENU PAGE. GROUNDED - YES. ACCOMPLISHED RESET PROCEDURE PER QRH. MISSING SATCOM SELECTION RESTORED AFTER COMPLETION OF CHECKLIST.
EMERGENCY LIGHT EXIT LOCATOR SIGN AT R-2 DOOR HAS BROKEN LENS. GROUNDED - YES. REMOVED AND REPLACED LENS AND TESTED LIGHT ASSY PER B737-800 AMM 33-51-01-960-801 - OPS NORMAL.
TEMP CONTROLLERS ARE NOT VERY RESPONSIVE. AFT CONTROLLER FOR EXAMPLE COULD NOT COMMAND MORE THAN 18'C DUCT SUPPLY EVEN AT THE 3 O'CLOCK POSITION. GROUNDED - YES. REMOVED AND REPLACED TRIM AIR PRESSURE AND SHUTOFF VALVE REF B737-800 AMM 21-62-01/401. OPS CHECK GOOD, GROUND VERIFICATION SUCCESSFUL. FOUND OLD VALVE IN MANUAL MODE, SUSPECT TO BE AT FAULT.
ENROUTE ATC REPORTED LOSS OF ADS. SAT SELECTION ON THE MCDU MENU PAGE HAD DISAPPEARED. GROUNDED - YES. PERFORMED QRH PROCEDURE AND SAT PROMT RETURNED TO NORMAL.
1) A/P ONLY DISCONNECT WITH MOMENTARY (1 SECOND) "VTK" ON CA (A) SIDE2) WAS NOT ABLE TO SEE ANY MESSAGE WITH RECALL3) CA (A SIDE) A/P REENGAGED NORMALLY. GROUNDED - YES. REF FIM 34-61 TASK 801, FMCS BITE SENSORS TESTED NORMAL, INFLT FAULT PAGE SHOWS LEFT FMC FAULT RESET ON FLT LEG 9 ONLY. REF FIM 22-11 TASK 801, DFCS BITE CURRENT STATUS OK W/O FAULTS. FAULT HISTORY SHOWS FAULT MSG CH-A "FMC DATA INV", LRU TESTS OK. DFCS FMC LRU REPLACEMENT TESTED GOOD. CURRENT STATUS NORMAL. ACCOMPLISHED LAND VERIFY BITE GP 49. NO FAULTS NOTED. NO OTHER RECENT HISTORY.
SATCOM NOT DISPLAYED ON MCDU MENU PAGE. GROUNDED - YES. ACCOMPLISHED RESET PROCEDURE PER QRH. SATCOM WAS SUCCESSFULLY RESET.
JUST PRIOR TO PUSHBACK FWD RIGHT WINDOW OVERHEAT LIGHT ILLUMINATED. RAN CHECKLIST, LIGHT REMAINED ON. GROUNDED - YES. WHCU BITE FAILED WITH SENSOR ILLUMINATED. SWAPPED TO SPARE SENSOR. OP CK NORMAL. REF FIM 30-41 TASK 812.
JUST PRIOR TO PUSHBACK FWD RIGHT WINDOW OVERHEAT LIGHT ILLUMINATED. RAN CHECKLIST, LIGHT REMAINED ON. GROUNDED - YES. WHCU BITE FAILED WITH SENSOR ILLUMINATED. SWAPPED TO SPARE SENSOR. OP CK NORMAL. REF FIM 30-40 TASK 812.
IN CRUISE FLT, FLT ATTENDANTS REPEATEDLY SAY CABIN IS COLD. MOVED TEMP CONTROLLERS FULL WARM AND FWD DUCT TEMP STABLE AT ONLY 24 DEGREES C AND AFT 22 DEGREES C. NOTED L PACK TEMP PEGGED FULL COLD AND RT PACK 18 DEGREES C. ALTITUDE 34,000' AND DUCT PRESSURE APPEAR NORMAL AT L: 45 RT 42 PSI. OAT -48 DEGREES C FAIRLY WARM MOVING CONT CAB TEMP AFFECT CABIN TEMPS SIMILARLY EVEN THOUGH FULL WARM. GROUNDED - YES. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST PER FIM 21-62 TASK 801. FOUND BAD LEFT TEMP CONTROL VALVE. REMOVED AND REPLACED LEFT TEMP. CONTROL VALVE PER AMM 21-51-10. OPS CHECK GOOD NO LEAK.
JUST PRIOR TO TOP OF DESCENT LEFT FMC FAIL (VTK). LEFT IRS POSITION SHOWED 4.6 NM AT TIME OF FAILURE. GROUNDED - YES. PERFORMED B737-800 FIM 34-61 TASK 837, NO OTHER FAULTS NOTED.
ON TAKEOFF 27K BUMP #1 ENG EGT WENT SOLID RED UNTIL POWER REDUCTION AT 1000 AGL. GROUNDED - YES. CHECKED FOR EGT SYS FAULTS AND FOUND ONE OCCURRENCE OF MSG 77-20861, BOTTOM LEFT EGT OUT OF RANGE. ACCOMPLISHED B737-800 FIM 77-05 TASK 801. NO DEFECTS NOTED. TESTED S3 EGT SEGMENT FOR PROPER RESISTANCE VALUES IAW AMM 77-21-01-200-801, NO DEFECTS. CLEANED EGT SYSTEM CONNECTORS IAW AMM 77-21-00-140-801. ETOPS GROUND VERIFICATION TEST SUCCESSFUL- #1 ENG EEC TEST REF AMM 73-21-00-700-804. EGT PRE CLEANED TEMPS AS FOLLOWS: S1-180, S2-142, S3-242, S4-184. POST CLEANED EGT TEMPS: S1-78, S2-44, S3-43, S4- 87. OBSERVING THAT AFTER CLEANING S-3 CAME DOWN TO WITHIN LIMITS OF OTHER SENSOR VALUES.
ON SWITCHING TO APU FROM GROUND POWER #2 FMCS MCDU WENT BLANK. GROUNDED - YES. PERFORMED B737-800 FIM 34-61 TASK 807 FOR RESET AND ALL OPS CK NORMAL.
FA REPORT AIRCRAFT CABIN FREEZING COLD DESPITE AFT CAB AND FWD CAB TEMP CONTROLS FULL HOT - TEMP INDICATES 22 DEGREES C FOR BOTH DUCTS. GROUNDED - YES. BITE TEST ON BOTH PACK-ZONE TEMP CONTROLLERS SHOWS NO FAULTS. RAN BOTH PACKS FULL HOT, CONFIRMED FWD CABIN & AFT CABIN TEMP SHOW 22 C. CONTROL CABIN TEMP OK. GVI BOTH PACKS, FOUND R/H PACK TCV2 (V141) OVERHEATED. REMOVED & REPLACED TCV2 REF B737-800 AMM 21-51-10, LK CK & OPS CK NML REF AMM 21-61-00-700-806-002. RECHECKED AFT & FWD CABIN TEMPERATURE, NOW SHOWS 35C.
ON RECALL ZONE TEMP LIGHT ILLUMINATED FOR CONT CAB. LIGHT EXTINGISHED WITH MASTER CAUTION RESET. TEMP INDICATOR DID NOT RESPOND TO TEMP INCREASE OR DECREASE IN CONT CAB POSITION. GROUNDED - YES. BITE CHECK FAILED THE TRIM MODULATING VALVE FOR THE FLIGHT DECK. REMOVED AND REPLACED THE TRIM AIR MODULATING VALVE FOR THE FLIGHT DECK REF AMM 21-61-21 AND 21-61-21. OPS/LEAK CHECK GOOD. BITE CHECK IS A GO. NO OTHER DEFECTS NOTED. SEAMC NOTIFIED.
ON 5+ HOUR FLIGHT NEVER ABLE TO COOL OFF THE FLT DECK. CONT CABIN SUPPLY DUCT TEMP NEVER GOT BELOW 40 C. FOLLOWED MEL OPERATIONS PROCEDURES STEP #2 WITH NO HELP OR RELIEF FROM HEAT. GROUNDED - YES. FOUND LH PACK TRIM AIR VALVE TO BE IN THE OPEN POSITION WITH SWITCH IN OFF POSITION. VERIFIED TEMP CONT OPERATED NORMALLY.
CONT CAB TEMP CONTROLLER ERRATIC: STARTED EXTREMELY COLD AT "NORMAL" SETTING AFTER TAKEOFF. HAD TO SELECT 3 O'CLOCK POS FOR NORMAL TEMP APPROX 1HR LATER BECAME EXTREMELY HOT. SELECTED OFF TEMP WENT TO 32C. AS A CHECK SELECTED APPROX 12 O'CLOCK "T" POSITION TEMP WENT TO 60 DEG C. GROUNDED - YES. PERFORMED FIM 21-61 TASK 801 BITE SHOWED NO FAULTS. PERFORMED FIM 21-61 TASK 858 RAN PACKS AND CONTROLLED TEMP MANUALLY AND IN AUTO. CW FIM 21-61 TASK 861 ALL OPS NORMAL ON GROUND. OK FOR CONTINUED SERVICE.
FLIGHT DECK CABIN TEMP DIFFICULT TO CONTROL AND TEMPERATURE SELECTOR POSITION INAPPROPRIATE FOR THE TEMPERATURE IN THE FLIGHT DECK. AFTER DEPARTING HNL, FLIGHT DECK BECAME VERY COLD AND SUPPLY DUCT TEMP FOR THE CONT CAB STAYED ON 0 DEGREE C UNTIL THE TEMP SELECTOR MOVED UP TO THE 4 O'CLOCK POSITION (ALMOST TO W). AT THAT POINT, THE TEMP BECAME COMFORTABLE. ESTABLISHED IN CRUISE, TEMPERATURE IN THE FLIGHT DECK SPIKED AND WE MOVED SELECTOR BACK TO 12 O'CLOCK POSITION. THE CONT CAB SUPPLY DUCT TEMP STEADILY INCREASED ABOVE 40 DEGREES C, REQUIRING US TO CONTINUE TO DECREASE THE TEMPERATURE SELECTOR POSITION TO THE "C"- FULL COLD POSITION. FLIGHT DECK REMAINED WARMER THAN DESIRED, BUT NOT HOT. AS SOON AS THE DESCENT BEGAN, THE FLIGHT DECK BECAME COLD UNTIL TEMP SELECTOR INCREASED AGAIN. GROUNDED - YES. C/W FIM 21-61 TASK 861. GROUND VERIFIED OPS CK GOOD AFTER INITIAL EVALUATION.
FLIGHT DECK ZONE TEMP LT ILLUMINATED WITH RECALL, RESET W/ MASTER CAUTION RESET. GROUNDED - YES. CONFIRMED FAULT. REF AMM 21-61-00-700-806-002, LEFT PACK/ZONE CONTROLLER BITE SHOWS NO FAULTS. REF AMM 21-61-06. CLEANED CONTROL CABIN TEMP SENSOR, FAN, FILTER. OPS TEST NORMAL.
ON ARRIVAL THE FO HAD BROUGHT UP THE VSD ON HIS INBOARD DU AND ALSO SELECTED ND ON THE LOWER DU WE THEN RECEIVED INTERMITTENT MAP FLAGS ON BOTH THE FO INBOARD DU AND LOWER DU. WE ALSO SAW INTERMITTENT MAP FLAGS APPROXIMATELY 10% OF THE TIME AS WELL. SELECTING THE LOWER DU BACK TO NORMAL CORRECTED THE PROBLEM AND WHEN THE VSD WAS BROUGHT OP ON CAPTAINS INBOARD DU NO FLAGS WERE PRESENT. GROUNDED - YES. VERIFIED NO LAST LAG FLT FAULTS ON FMC BOTH & NO FAULTS ON BOTH DEU'S. ACCOMP FMC'S OPS TEST, BOTH PASS TEST. REF AMM 34-61-00-710-801 & AMM 34-61-00-860-801. ACCOMP. SELF TEST ON BOTH DEU'S BOTH PASS SELF TEST REF AMM 31-62-00-730-001. ACCOMP GPWS OPS TEST, TEST PASS REF AMM 34-46-00-710-801-002.
PLASTIC EXIT LIGHT COVER NEAR R2 DOOR MISSING. GROUNDED - YES. INSTALLED NEW EXIT LENS COVER NEXT TO COMPARTMENT 4-17 AFT GALLEY.
#2 ENGINE TREND DATA SHOWS A SUDDEN DECREASE IN OIL TEMPERATURE. GROUNDED - YES. REPLACED OIL TEMP SENSOR AND PERFORMED INSTALLATION TEST, OPS CHECK GOOD IAW B737-800 AMM 79-34-02. DURING INSTALLATION TEST ONLY FAULT MESSAGE SHOWN WAS 78-21492.
FOLLOW-UP TO HISTORY OF THROTTLE SPLIT. GROUNDED - YES. ENGINEERING REQUEST - REMOVED AND REPLACED FCC A PER AMM 22-11-33. REMOVED AND REPLACED THE AUTOTHROTTLE SERVO MOTOR PER AMM 22-31-91, OPS CHECK GOOD PER SAME. ACCOMPLISHED FCC LLM MAINTENANCE TEST PER AMM 22-11-33-400-801 STEP J. (1) (A AND B) TEST SUCCESSFUL. ETOPS GROUND VERIFICATION SUCCESSFUL.
DURING CLIMB TO FL360 THE NR 2 THROTTLE WA 3/4 KNOB FORWARD OF NR 1 THROTTLE. THE ENGINE INDICATION WERE MATCHED. DURING THE LAST 1000' OF CLIMB FROM 350 TO 360, THE NR 1 THROTTLE WAS MOVING FORE AND AFT A FULL KNOB WIDTH AND THE ENGINE INDICATION REMAINED STABLE. AT LEVEL FLIGHT (FL360) NR 2 THROTTLE 1/4 KNOB FORWARD OF NR 1. THROTTLE. ENGINE IDICATION MATCH. AUTOTHROTTLE ON THE ENTIRE TIME. GROUNDED - YES. ACCOMPLISHED AUTOTHROTTLE BITE REF FIM 22-31 TASK 801. CURRENT STATUS TEST PASSED. NO FAULTS ON ANY FLIGHT IN FAULT HISTORY. ACCOMPLISHED A/T TEST PER AMM 22-31-00-710-801. DEU CURRENT FAULT EEC BITE CK PER AMM 73-21-00-740-803-F00 AND TAT PROBE CK ON GDW NO FAULTS FOUND. REMOVED AND REPLACED TAT PROBE PER AMM 34-21-16/401. POWER ASSURANCE RUN ACCOMPLISHED WITH MINIMAL THROTTLE SPLIT REF AMM 71-00-00-700-846 F00 TEST 5K.
DURING CLIMB OUT OF 340 NO 2 THROTTLE AHEAD OF NO1 THROTTLE BY HALF KNOB ENGINE PARAMETERS MATCHED AND NORMAL, AT CRUISE ALTITUDE THROTTLES MATCHED NO FURTHER SPLIT OBSERVED FOR REST OF TRIP. GROUNDED - YES. REMOVED AND REPLACED NR 2 EEC REF AMM 73-21-60. EEC AND ACTUATORS TEST PASSED.
AIRCRAFT HAS HISTORY OF THROTTLE STAGGER AT TOP OF CLIMB WITH N1S MATCHED. GROUNDED - YES. REMOVED & REPLACED NR 2 T12 SENSOR REF AMM 73-21-05-400-801-F00. CLEARS FVR DEFERRAL.
SATCOM LOCKUP. GROUNDED - YES. PERFORMED SATCOM LOCK-UP RESET PROCEDURE PER QRH. SATCOM WORKED NORMALLY AFTER THAT.
FUELER REPORTS NR 1 TANK REFUEL GUAGE INOP. GROUNDED - YES. REMOVED & REPLACED NR 1 REFUEL PANEL QTY IND REF AMM 28-41-61 OPS CHECK NORMAL.
DURING CLIMB FROM FL360 TO FL380 A THROTTLE SPLIT DEVELOPED UP TO APPROX ONE KNOB WIDTH WITH THE NR 2 THROTTLE HIGHER THAN NR 1. AT CLIMB POWER BOTH ENGINES WERE PRODUCING FULL THRUST AND EQUAL ON ALL PARAMETERS. EXCEPT FOR THROTTLE SPLIT. AT POWER REDUCTION BOTH THROTTLE LEVERS MOVED BACK TOGETHER HOWEVER THE THRUST ON THE NR 2 ENGINE REMAINED AT 100.5 WHILE NR 1 REDUCED TO ABOUT 90.0 WITHIN ABOUT 30 SEC BOTH ENGINES STABILIZED AT THE SAME CRUISE POWER WITH NO THROTTLE SPLIT. GROUNDED - YES. ACCOMPLISHED THRUST LEVER ANGLE RESOLVER ADJUSTMENT TEST. ALL TASK POSITIONS NORMAL SYSTEM THRUST LEVERS TEST NORMAL IAW AMM 76-11-05-820 AND FIM 76-05 TASK 801. PERFORMED AUTOTHROTTLE BITE PROCEDURE FIM 22-31 TASK 801 NO FAULTS RECORDED.
SATCOM LOCK-UP. GROUNDED - YES. QRH PROCEDURE FOLLOWED, SATCOM RESTORED.
HF1 SELECTED SHOWS FAIL IN BOTH ACTIVE AND STANDBY RADIO WINDOWS. GROUNDED - YES. PERFORMED INSPECTION AND FOUND NO DISCREPANCIES BEHIND P18-2 PANEL AND PERFORMED HF NR 1 C/B CYCLE PER AMM 20-60-05. PERFORMED HF SYSTEM BITE PROCEDURE PER FIM 23-11 TASK 801 AND HF SYSTEM OPS TEST PER AMM 23-11-00-710-801. ALL GOOD.
RAMP REPORTS NR 2 ENGINE LEAKING FUEL. GROUNDED - YES. REMOVED AND REPLACED NR 2 ENGINE LEFT VSV ACTUATOR REF AMM 75-31-01. ACTUATOR LEAK TEST, PASS. NO DEFECT NOTED. ACCOMPLISHED TEST 3A & 12. NO FAULT OR LEAKS NOTED. ALT DEACTIVATION PROCEDURE USED PER CHAPTER 5, TABLE 3, ITEM 8. CLEAR PLT. ALT DEACTIVATION PROCEDURE REVERSED.
CABIN FLOOR INTERCOSTAL UPPER ANGLE CRACKED BETWEEN STA 380 AND 400 LBL 20. GROUNDED - YES. REMOVED CRACKED CABIN FLOOR INTERCOSTAL UPPER ANGLE BETWEEN 380 AND 400 LBL 20 IAW SRM 51 40 02 0G 0 FIG 8, LOCATED AND SRILLED NEW ANGLE IAW SRM 51 40 05 0G 0 FIG 2, INSTALLED NEW ANGLE IAW SRM 51 40 02 0G 0 PARA 4.
DURING NDT INSPECTION CRACK FOUND ON RT SIDE VERTICAL PRESSURE WEB MACHINED POCKET. GROUNDED - YES. REPAIRED RT SIDE VERTICAL PRESSURE WEB MACHINED POCKET IAW SRM 57 10 10 2R 5 REPAIR 3 ALTERNATIVE 1. THIS IS A CAT. B REPAIR, INSPECTION THRESHOLD IA 56,000 FLT. CYCLES, REPEAT INSPECTION INTERVAL IS 56000 FLT. CYCLES, IAW SRM 57 10 10 2R 3 REPAIR 3 ALTERNATIVE 1 TABLE 203.
RT WING TRAILING EDGE LOWER SURFACE PANEL 661AB SUPPORT CRACKED. GROUNDED - YES. REMOVED AND REPLACED RT WING T/E LWR SURFACE PNL SUPPORT IAW SRM 51 40 02 0G 0 STEP 4B STEP 1-6, 4C STEP 1-3 AND STEP 7A 1-6.
LOWER SILL WEB AT FWD CARGO DOOR HAS CORR. GROUNDED - YES. REMOVED CORR AND CHECK LIMITS FOUND TO BE OUT OF LIMITS IAW SRM 53 15 1A 1 AND REMOVED AND REPLACED SILL WEB IAW SRM 51 40 02 0G 0 W O .045 R .039 L 30 D .006.
AFT WET AREA L2 ENTRY HAS CORR AROUND FASTENER HOLE I/B OF AFT SIDE OF DOOR CUTOUT. GROUNDED - YES. REPAIRED STA 986.5 FLOORBEAM UPPER CAP AT L2 ENTRY FASTENER HOLE I/B OF AFT SIDE OF DOOR CUTOUT IAW EA NR 800 53 EA 20874W 1 O .150 R .101 L 2 D .049.
LT AFT BAFFLE CLIP AT STA 500H IS CRACKED. GROUNDED - YES. REMOVED AND REPLACED WITH NEW BAFFLE CLIP ON LT AT 500H IN FWD CARGO IAW SRM 51 40 02 0G 0.
LT FWD BAFFLE CLIP AT STA 500H IS CRACKED. GROUNDED - YES. REMOVED AND REPLACED WITH NEW BAFFLE CLIP ON LT AT STA 500H IN FWD CARGO IAW SRM 51 40 02 0G 0.
LT FWD BAFFLE CLIP AT STA 500D IS CRACKED. GROUNDED - YES. REMOVED AND REPLACED WITH NEW BAFFLE CLIP ON LT AT STA 500D ON FWD CARGO IAW SRM 51 40 02 0G 0.
AFT PIT CARGO DOOR THRESHOLD SILL WEB HAS AREAS OF CORR. GROUNDED - YES. REMOVED CORR AND CHECKED LIMITS FOUND TO BE OUT OF LIMITS IAW SRM 53 60 15 1A 1 1901 REMOVED AND REPLACED SILL WEB IAW SRM 51 40 02 0G 0 W 1 O .045 R .033 L 2 D .012.
AFT PIT RT TRANSITION BETWEEN STA 767 TO STA 787 HAS AREAS OF CORR. GROUNDED - YES. REMOVED CORR FROM AFT PIT RT TRANSITION PANEL STA 767 TO STA 787, FOUND TO BE OUT OF LIMITS DUE TO 100% MAT LOSS IAW SRM 53 00 53 1A 2, REPAIRED DAMAGED TRANSITION PANEL IAW SRM 53 00 53 2R 5 REPAIR 5 W 1.50 O .040 R 0.0 L 1.50 D .040.
AFT PIT RT TRANSITION BETWEEN STA 727C AND STA 727D +10 HAS AREAS OF CORR ON UPPER FLANGE. GROUNDED - YES. REMOVED CORR FROM AFT PIT RT TRANSITION PANEL BETWEEN STA 727C AND STA 727D +10, FOUND TO BE OUT OF LIMITS DUE TO 100% MAT. LOSS IAW SRM 53 00 53 1A 2, REPAIRED DAMAGED TRANSITION PANEL IAW SRM 53 00 53 2R 5 REPAIR 5 W 1.50 O .040 R 0.00 L 1.50 D .040.
AFT PIT LT TRANSITION CORRODED AT STA 787+6. GROUNDED - YES. REMOVED CORR FROM AFT PIT LT TRANSITION PANEL AT STA 787+6, FOUND TO BE OUT OF LIMITS DUE TO 100% MAT LOSS IAW SRM 53 00 53 1A 2 REPAIRED DAMAGED TRANSITION PANEL IAW SRM 53 00 53 2R 5 REPAIR 5 W 1.50 O .040 R 0.00 L 2.00 D .040.
AFT PIT RT TRANSITION PANEL BETWEEN STA 727E+10 AND STA 727J HAS SEVERAL AREAS OF CORR. GROUNDED - YES. REMOVED CORR FROM RT TRANSITION PANEL AFT PIT BETWEEN STA 727E +10 AND 727J. FOUND TO BE OUT OF LIMITS IAW SRM 53 00 53 1A 2, REPAIRED DAMAGED TRANSITION PANEL IAW SRM 53 00 53 2R 5 REPAIR 5 W 1.50 O .040 R .032 L 1.50 D .008.
AFT PIT LT TRANSITION BETWEEN STA 727C AND STA 727F HAS AREAS OF CORR ON UPPER FLANGE. GROUNDED - YES. REMOVED CORR FROM AFT PIT LT TRANSITION PANEL BETWEEN STA 727C AND 727F, FOUND TO BE OUT OF LIMITS IAW SRM 53 00 53 1A 2, REPAIRED DAMAGED TRANSITION PANEL IAW SRM 53 00 53 2R 5 REPAIR 5 W 1.50 O .040 R .030 L 2 D .010.
AFT PIT LT TRANSITION PANEL BETWEEN STA 727G AND STA 727H+10 HAS AREAS OF CORR ON UPPER FLANGE. GROUNDED - YES. REMOVED CORR FROM AFT PIT LT TRANSITION PANEL STA 727G TO 727H+10, FOUND TO BE OUT OF LIMITS IAW SRM 53 00 53 1A 2, REPAIRED DAMAGED TRANSITION PANEL IAW SRM 53 00 53 2R 5 REPAIR 5 W 1.50 O .40 R .032 L 2 D .008.
O/B SIDE OF VERTICAL STANCHION AT STA 867 LBL16 HAS A CRACKED ANGLE. GROUNDED - YES. REMOVED AND REPLACED O/B SIDE OF VERTICAL STANCHION AT STA 867 LBL16 ANGLE IAW SRM 51 40 02 0G 0.
HF NR 1 AND HF NR 2 BOTH INOP. BOTH TAKE A LONG TIME TO TUNE, THEN NO TRANSMISSIONS HEARD. GROUNDED - YES. REMOVED & REPLACED NR 1 HF ANTENNA COUPLER & NR 2 HF ANTENNA COUPLER REF AMM 23-11-61, GROUND FUNCTIONAL CK NML.
NR 1 HF CHECK, FAILED. HF 1 SEEMS TO TUNE FINE BUT UNABLE TO TRANSMIT OUT. CAN HEAR ALL OTHER AIRCRAFT AND RADIO ON TUNED FEQ. WHEN TUNING RADIO, THE TONE/BEEP LASTED IN EXCESS OF 5 SECONDS. ACFT GROUNDED.
DURING POWER TRANSFER FROM APU/GND WITH POWER SPIKE THE RIGHT SIDE MCDU WENT BLANK AND WILL NOT RESTORE. TRANSFERED POWER BACK TO APU. ACFT GROUNDED. PERFORMED FIM 34-61 TASK 804 & FIRST OFFICER`S FMC MCDU RESTORED.
HF NR 1 AND 2 COMMS VERIFICATION IN FLIGHT UNSUCCESSFUL. DUAL HF RADIO CHECK MADE ON FREQ 10057, REPORTED POOR FREQ TUNING AND 2 BY 3 RECEPTION AND TRANSMISSION. DUAL CHECK SUCCESSFUL. ACFT GROUNDED. REMOVED HF COUPLER NR 1 AND 2 TO CHECK OF HF ANTENNA FEED CONNECTIONS FOR CONDITION AND SECURITY IAW T/C NG-23EO-19805-1. REINSTALLED HF COUPLERS NR 2 IAW AMM 23-11-61-400-801, AND T/C NG-23EO-19805-1. PERFORMED HF NR 1, OPS CHECKED GOOD IAW AMM 23-11-00/501. PERFORMED HF NR 2 OPS CHECK GOOD IAW AMM 23-11-00/501. ETOPS GROUND VERIFICATION SUCCESSFUL.
NR 2 HF WAS WEAK, SCRATCHY, BUT READABLE TRIED FOUR DIFFERENT FREQUENCIES. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 HF ANTENNA COUPLER IAW AMM 23-11-61-400-801, OPS NORMAL IAW AMM 23-11-00-730-801.
NR 1 ENGINE EXPERIENCED AN INCREASE IN DELTA EGT AND A DECREASE IN EGT HOT DAY MARGIN. FUEL FLOW AND CORE SPEED REMAINED STABLE. ACFT GROUNDED. ON THE NR 1 ENGINE, PERFORMED FIM 77-05, TASK 801, FOUND FAULT CODE 77-20861 ON MULTIPLE FLIGHT LEGS IN FAULT HISTORY. PERFORMED FIM 77-21, TASK 803, DURING T49.5 PROBE AND EGT SYSTEM INSPECTION, FOUND T49.5 PROBES S2 AND S3 OUT OF RESISTANCE LIMITS IAW AMM 77-21-01-200-801-F00. REMOVED AND REPLACED THE S2 AND S3 T49.5 PROBES IAW AMM 77-21-01/401. OPS CHECKED SATISFACTORY. PERFORMED SUCCESSFUL REPAIR CONFIRMATION OF FIM 77-05, TASK 801, AND FIM 77-21, TASKS 801-804.
NR 1 HF RADIO NOT WORKING, NR 2 HF WEAK, SCRATCHY, BUT READABLE. TRIED FOUR DIFFERENT FREQUENCIES. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 HF ANTENNA COUPLER IAW AMM 23-11-61-400-801, OPS NORMAL IAW AMM 23-11-00-230-801.
UNABLE TO CONTACT ON THE NR 2 HF RADIO. ACFT GROUNDED. OPEN
"PACK" LT ILLUM ON RECALL, RESET W/ MC RESET. GROUNDED - YES. REMOVED & REPLACED LT PACK TCV AMM 21-61-21 OPS CHECK NORMAL.
AT TOP OF DESCENT UPON MASTER RECALL, LEFT PACK ILLUMINATED. UPON RESET OF MASTER CAUTION, LEFT PACK LIGHT CLEARED. GROUNDED - YES. CONFIRMED LT PACK OVHD ANNUNC ILLUM W/MSTR RECALL. PERF'D BITE TEST OF PACK/ZONE TEMP CONTROLLERS PER AMM 21-61-00. UPON INITIAL EVAL FOUND CONTLR NR 1 W/"TCV THIS PACK" RED FAULT LAMP ON IN PREVIOUS FLIGHT FAULTS. CONTINUED W/TEST AND CONTLR NR 1 OPS NRML - FAULT LAMP EXTINGUISHED. SUBSEQUENT TEST OF BOTH CONTLRS PER ABOVE AMM REF OPS NRML W/NO FAULTS DISPLAYED. L PACK ANNUNC NOW REMAINS EXTINGUISHED W/MSTR RECALL.
HF-2 DOES NOT CHANNELIZE. GROUNDED - YES. REMOVED AND REPLACED HF 2 COUPLER PER AMM 23-11-61. PERFORMED GOOD OPS TEST OF HF 2 PER AMM 23-11-61-400-801.
SATCOM LOCKUP. GROUNDED - YES. QRH SUCCESSFUL RESET.
CONTROL CABINE ZONE TEMP LIGHT ILLUMINATED ON RECALL, CLEARS WITH MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED PZTC BITE ON BOTH CONTROLLERS IAW FIM 21-62, TASK 801. ON NR 2 CONTROLLER, FOUND FLT DECK TRIM VALVE FAULT FOR PREVIOUS FLIGHT. RESET SUCCESSFUL AND VERIFY PORTION OF BITE PASSED MULTIPLE TIMES IAW FIM 21-62, TASK 801. OPS CHECKED GOOD.
DURING POST LEAK CHECK FOR A FUEL NOZZLE REPLACEMENT ON THE NR 1 ENGINE, FOUND RT VSV ACTUATOR LEAKING 15 DROPS PER MINUTE AT THE 6 O'CLOCK POSITION. ACFT GROUNDED. REPLACED THE VSV ACTUATOR IAW AMM 75-31-01-000-802-F00, AND AMM 75-31-01-400-802-F00. ACCOMPLISHED VSV ACTUATOR LEAK TEST IAW AMM 75-31-01-790-801-F00. LEAK CHECKED GOOD. ACCOMPLISHED TESTS FROM POWERPLANT TEST IAW TABLE TEST 12 AND TEST 3A. TEST 12 ACTUATOR TEST, OPS CHECKED GOOD, NO FAULTS. TEST 3A LEAK CHECKED GOOD.
NR 1 ENGINE HAS INCREASED DELTA EGT AND DECREASED EGT HOT DAY MARGIN. DELTA FUEL FLOW AND CORE SPEED REMAIN STABLE. GROUNDED - YES. REMOVED AND REPLACED MAIN ENGINE FUEL NOZZLES LT SIDE 16- 20, AND RT SIDE 1- 6 IAW MTX T/C PWRPL-73CMPT-01267-2 MAIN ENGINE FUEL NOZZLES - ON CONDITION REPLACEMENT. LEAK CK GOOD OPS CK GOOD NO FAULTS.
NR 2 HF DISPLAYED FAILED ON BOTH COM PANELS. ACFT GROUNDED. PERFORMED FIM 23-11, TASK 802. CYCLED THE NR 2 HF CIRCUIT BREAKER AND PERFORMED FIM 23-11, TASK 801. NO DEFECTS NOTED.
WHILE ACCOMPLISH T/C 78472000 FRONT CONE SPINNER BLACK ANODIZED COATING IS MISSING MORE THAN 50 PERCENT #1 ENGINE. ACFT GROUNDED. REPLACED THE CONE IAW. AMM 72-21-01.
WHILE ACCOMPLISHING T/C 78472000, FOUND THE NR 1 ENGINE FAN CASE FLANGE CRACKED FWD ATTACH POINT OF FIRE OVERHEAT DETECTOR BRACKET AT 11;30 O`CLOCK. ACFT GROUNDED. THE NR 1 ENGINE FAN CASE FLANGE WORKED ON TC SBCFM56-7B-72-0580-1. INSTALLED. OPS CHECKED GOOD.
NR 1 ENGINE EGT WAS ALWAYS HIGHER THAN NR 2 ENGINE EGT BY AT LEAST 36 C, DURING TAKEOFF ROLL, NR 1 EGT GAUGE INDICATED SOLID RED FOR LESS THAN ONE MINUTE. ACFT GROUNDED. IAW TSR 701846. REPLACED THE TOP LEFT EGT T49.5 PROBE IAW AMM 77-21-01, PERFORMED POWER ASSURANCE CHECKS, FOUND NORMAL IAW AMM 71-00-00, GROUND VERIFICATION SUCCESSFUL.
THE #1 ENGINE EXPERIENCED AN EGT EXCEEDANCE DURING TAKEOFF THAT MAY HAVE EXCEEDED THE TRANSIENT AREA LIMITS. PEAK EGT RECORDED ON REPORT 06 WAS 976 DEGREES DURING TAKEOFF (FLIGHT PHASE 4.). ACFT GROUNDED. FOUND THE RED BOX AROUND EGT INDICATOR THE PEAK WAS 20 SECONDS AT 950 - 977.5 IAW AMM 71-00-00-740-8011-F00. PERFORMED A WIRE HARNESS RESISTANCE CHECK, FOUND VALUES TO BE WITHIN TOLERANCE IAW AMM 77-21-01. INTERROGATION OF FMC CDU SHOWS FAULT MESSAGE 77-20871, TOP LEFT EGT SIGNAL T495S4 WAS OUT OF RANGE REMOVED AND REPLACED THE TOP LEFT EGT T49.5 PROBE IAW AMM 77-21-01-000-400. ACCOMPLISHED POWER ASSURANCE CHECK IAW AMM 71-00-00-700-813-F00, ENGINE PARAMETERS WERE WITHIN LIMITS. DURING ENG RUN PARAMATERS 18C N1 88.5 EGT 567 OPS CHECKED NORMAL.
NR 2 ENGINE FIRE TEST FAILED. B LOOP FAULTED. ACFT GROUNDED. REMOVED & REPLACED THE CORE FIRE DETECTION HARNESS IAW AMM 26-11-02-400-803. ACCOMPLISHED AN ENGINE FIRE DETECTION OPS TESTED IAW AMM 26-11-00-710-801. OPS CHECKED NORMAL.
APU DRAIN MAST CRACKED. ACFT GROUNDED. REPLACED THE APU FUEL FEED LINE SHROUD MAST IAW AMM 28-25-07.
NR 2 ENGINE B LOOP INOPERATIVE. ACFT GROUNDED. PERFORMED A NR 2 ENGINE FIRE LOOP DETAILED INSPECTION. TERMINALS AND CONNECTORS ALL SERVICEABLE. RAN THE NR 2 ENGINE FOR 15 MINUTES, COULD NOT DUPLICATE DEFECT. PERFORMED ENGINE AND APU FIRE DETECTION CONTROL MODULE BITE BEFORE, DURING AND AFTER ENGINE RUN IAW FIM 26-10 TASK 801. NO FAULTS. NO HISTORY 30 DAYS, COULD NOT DUPLICATE FAULT.
NR 2 ENGINE FAN LUBE FOUND PLATFORMS ARE WORN OUT OF LIMITS. ACFT GROUNDED. INSTALLED SERVICEABLE PLATFORMS IAW T/C 78472002 STEP 44.
DURING NR 2 ENG FAN LUBE, FOUND BLADES 1, 7, 10, 17, AND 23 OUT OF LIMITS. ACFT GROUNDED. INSTALLED SERVICEABLE FAN BLADES IAW T/C 78472002 STEOP 42-43.
NR 2 ENGINE FRONT SPINNER IS CORRODED. ACFT GROUNDED. INSTALLED SERVICEABLE FRONT SPINNER CONE REF T/C 78472002 STEP 48.C.
NR 2 ENGINE OIL FILTER BYPASS LIGHT ILLUMINATED DURING CRUISE AT FL 350 AND DID NOT EXTINGUISH WITH THE THRUST LEVER AT IDLE. ACFT GROUNDED. INSPECTED THE NR 2 ENGINE AND FOUND NOISY WHEN PULLING BLADE THROUGH ROTATION. INSPECTED THE MCD AND SCAVENGE FILTER IAW AMM 79-00-00-200-804-F00. FOUND SUBSTANTIAL METAL DEBRIS ON AGB/TGB, MCD, AND N2 SPEED SENSOR. NO METAL DEBRIS NOTED ON STARTER MCD AND SCAVENGE FILTER. REINSTALLED N2 SPEED SENSOR IAW AMM 77-11-02, AND AGB/TGB MCD IAW AMM 79-21-05. REMOVED AND REPLACED THE NR 2 ENGINE IAW T/C 78471000, AND 78471001, NO OIL BYPASS NOTED DURING ENGINE RUN. VERIFICATION FLIGHT SATISFACTORY.
NR 2 ENGINE FAN LUBE FOUND SHIMS COATING WORN OUT OF LIMITS. ACFT GROUNDED. INSTALLED SERVICEABLE SHIMS IAW T/C 78472002 STEPS 42 AND 43.
FOUND ECONOMIC FAULT ON THE NR 1 ENGINE. MAINTENANCE MESSAGE 77-20871. THE TOP LEFT EGT SIGNAL T495S4 IS OUT OF RANGE. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 ENGINE UPPER 11 FUEL NOZZLES IAW T/C PWRPL-73CMPT-07267-2. OPS & LEAK CHECKED GOOD, NO FAULTS NOTED.
LEFT WING ANTI-ICE VALVE OPEN WITH SWITCH OFF. ACFT GROUNDED. REMOVED AND REPLACED THE LEFT WING ANTI-ICE VALVE IAW AMM 30-11-11.
AFTER THREE HOURS OF CRUISE, AT FL340, CLIMBED TO FL360. ON REACHING FL360, NOTICIED WING ANTI-ICE LT VALVE OPEN LIGHT WAS ILLUMINATED BRIGHT BLUE. LIGHT REMAINED BRIGHT BLUE APPROX 5 MINUTES, THEN EXTINGUISHED FOR REMAINDER OF FLIGHT. ACFT GROUNDED. PERFORMED THE WING ANTI-ICE FAULT ISOLATION TEST. COULD NOT DUPLICATE DEFECT IAW FIM 30-11 TASK 803. THERE IS NO MAINTENANCE HISTORY WITHIN THE PAST 30 DAYS.
IN FLIGHT WITH WING ANTI SWITCH OFF, THE L VALVE OPEN LIGHT IS ILLUMINATED BRIGHT BLUE. ACFT GROUNDED. OPS CHECKED THE WING ANTI ICE GOOD. COULD NOT DUPLICATE FAULT. VALVES OPERATE AND CYCLE NORMALLY. NO AIRCRAFT HISTORY. CONCLUDED THE DISCREPANCY IS AN INTERMITTENT FAULT.
THE APU FIRE BOTTLE DISCHARGE LIGHT IS ILLUMINATED. ACFT GROUNDED. TROUBLESHOT TO THE APU FIRE BOTTLE IAW FIM 26-20 TASK 802. REMOVED AND REPLACED THE APU FIRE BOTTLE IAW T/C 78326000. OPS CHECKED GOOD AND APU FIRE BOTTLE DISCHARGE LIGHT IS NOT ILLUMINATED.
NR 2 ENGINE COWL ANT-ICE SHOWS AMBER TAI INDICATION ABOVE ENGINE INSTRUMENT CLUSTER WITH ANTI-ICE TURNED ON, COWL VALVE OPEN LIGHT ON OVERHEAD PANEL OPERATES NORMALLY AND GIVE PROPER INDICATIONS AS VALVE CYCLES OPEN AND CLOSED. ACFT GROUNDED. PERFORMED TROUBLESHOOTING IAW FIM 30-21, TASK 806, FOUND TAI VALVE FAILED. REPLACED THE NR 2 ENGINE COWL TAI VALVE IAW AMM 30-21-11-400-801, OPS CHECKED GOOD DURING ENGINE RUN, NO AMBER LIGHT, OVERHEAD INDICATIONS NORMAL.
DUAL FMC FAILURE AFTER LANDING. FMCS DID NOT RESET AFTER TAXI IN AND CONNECTED TO GROUND POWER. ACFT GROUNDED. PERFORMED FIM 34-61 TASK 804. FMC RESET, & BITE CHECKED GOOD. NO DEFECTS NOTED.
NR 1 ENGINE BLEED AIR REGULATOR VALVE BODY IS CRACKED AT ELECTRICAL CONNECTOR ATTACHMENT. GROUNDED - YES. REMOVED NR 1 ENG BLEED AIR REGULATOR REF AMM 36-11-03-000-801. INSTALLED NEW BLEED AIR REGULATOR. NO DEFECTS NOTED. REF AMM 36-11-03-400-801.
DUCT PRESSURE DIFFERENTIAL INDICATED BY LEFT DUCT AT 10 PSI, RIGHT DUCT AT 45 PSI READ PASSING LEVEL 330 IN CLIMB. AT LEVEL 380 LEFT =10 PSI ,RIGHT=36 PSI N1'S AT 87.5%. GROUNDED - YES. ACCOMPLISHED T/C NG-36WC-0001 PRECOOLER CONTROL VALVE FAILS, REPLACED PCV REF AMM 36-12-02-000-801 OPS/LEAK CK GOOD. CROSSOVER TEST FAILED. REPLACED PRSOV REF AMM 36-11-04-000-801/-400-801. NO DEFECTS NOTED. ACCOMPLISHED ENGINE BLEED AIR CROSSOVER TEST PER AMM 36-11-00-710-801, OPS CK PASSED.
SATCOM LOCKED UP. ACFT GROUNDED. QRH PROCEDURE PERFORMED SUCCESSFULLY ON THE GROUND. NORMAL OPS RESTORED.
SATCOM LOCKED UP. ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE IAW QRH. SATCOM RESTORED TO NORMAL.
SATCOM LOCK-UP GROUNDED - YES. ACCOMPLISHED QRH SATCOM LOCK-UP CHECKLIST. SAT PROMPT RESTORED.
VTK ILLUMINATED CAPTAINS ND. GROUNDED - YES. PERFORMED B737-800 FIM TASK 34-61-00-810-836. NO VTK INDICATION ON ND. FMC RESET. INTERMITTENT FAULT. NO HISTORY NOTED. OK FOR CONTINUED SERVICE.
#1 ENG WITH GOOD AIR PSI START VALVE OPEN INDICATION BUT NO ROTATION. TRIED 3 ATTEMPTS. FIRST ATTEMPT SHOWED A SLIGHT ROTATION THEN ZERO. THE OTHER 2 ATTEMPTS SHOWED ZERO OR NO ROTATION. GROUNDED - YES. REMOVED #1 ENG STARTER REF B737-800 AMM 80-11-01-000-801-F00. INSTALLED NEW STARTER REF AMM 80-11-01-400-801-F00, OPS AND LEAK CHECKS GOOD.
FIRST OFFICER'S MCDU INOPERATIVE. ACFT GROUNDED. PERFORMED FIM 34-61, TASK 804, AND MCDU OPS NORMAL, GROUND VERIFICATION CHECKED GOOD.
WHILE PERFORMING T/C 78273000, FOUND THE NR 1 ENGINE ECONOMIC FAULT. MESSAGE 77-20861, THE BOTTOM LEFT EGT SIGNAL T495S3 IS OUT OF RANGE. ACFT GROUNDED. FAULT 77-20861 LOGGED ON LEGS 0 THRU 10. FOUND S3 VALUE READS HIGH. ACCOMPLISHED EGT CONNECTOR CLEANING IAW AMM 77-21-00, EEC TEST PASSED, ALL 4 S1 THRU S4 VALUE WITHIN LIMITS. PRE CLEANING: S1-34.62, S2-15.44, S3-874.36, S4-49.94. POST CLEANING: S1-25.92, S2-9.91, S3-11.86, S4-27.84. OPS TEST PASSED.
#2 GENERATOR WILL NOT GO ON BUSS. METER SHOWS NO ZERO AMPS, ZERO VOLTS. ACFT GROUNDED. FOUND IDG FAULT LIGHT ON FOR NR 2 GCU. FAULT RESET & RAN #2 ENG, NO VOLTS OR FREQS. R & R THE NR 2 ENG IDG IAW AMM 24-11-11. OPS CHECKED NORMAL.
WHILE PERFORMING T/C 78273000 FOUND NR 1 ENGINE WITH AN ECONOMIC FAULT 77-20861. THE BOTTOM LEFT EGT SIGNAL T495S3 IS OUT OF RANGE. ACFT GROUNDED. FOUND S3 VALUE READS HIGH. ACCOMPLISHED EGT CONNECTOR CLEANING REF B737-800 AMM 77-21-00, EEC TEST PASSED, ALL 4 S1-THRU S4 VALUE WITHIN LIMITTS. PRE CLEANING: S1-34.62, S2-15.44,S3-874.36, S4-49.94. POST CLEANING: S1-25.92, S2-9.91, S3-11.86, S4-27.84. OPS TEST PASSED. PLT CLEARED.
CIRCUIT BREAKER D-1 WARNING LIGHT BATTERY ON PANEL P18-1 WAS TRIPPED. ACFT GROUNDED. RESET THE CIRCUIT BREAKER. THE CIRCUIT BREAKER REMAINS SET IAW AMM 20-60-01, AND WDM 22-14-11. ALSO ACCOMPLISHED FLIGHT STATUS ANNUNCIATOR TEST IAW AMM 22-11-32.
DURING FAN BLADE LUBRICATION ON NR 1 ENG, FOUND MULTIPLE SHIMS NEED REPLACEMENT. GROUNDED - YES. REPLACED FAN BLADE SHIMS ON NR 1 ENG PER T/C 78472002.
DURING T/C 78233001, EMERGENCY LIGHT SWITCH OPS CHECKED AND BATTERY PACKS FUNCTIONAL CHECKED, R1 DOOR EMERGENCY EXIT SIGN AND R1 FUSELAGE LIGHT FAILED A BATTERY PACK CAPACITY CHECK. ACFT GROUNDED. REPLACED THE BATTERY PACK, M1674 IAW AMM 33-51-06-960-805, OPS CHECKED NORMAL.
NR 1 ENGINE START VALVE DID NOT OPEN WHEN ENGINE START SWITCH POSITIONED TO GROUND. NO ROTATION NOTED. GROUNDED - YES. REPLACED NACELLE WIRING HARNESS, REF AMM 71-51-03. GROUND VERIFICATION CHECK GOOD, REF AMM 71-00-00-700-807 AND 73-21-00.
VTK ON THE FIRST OFFICER`S DISPLAY. ACFT GROUNDED. ACCOMPLISHED FIM 34-61, TASK 836. NO FAULTS.
DURING CRUISE FLIGHT AT FL360, AUTOPILOT A DISCONNECTED. AIRCRAFT WAS IN PERFECT TRIM. WEATHER WAS CLEAR AND SMOOTH WITH A LEFT CROSS WIND OF 130KTS. ACFT GROUNDED. WHILE ACCOMPLISHING DFCS BITE, FOUND FAULT MESSAGE 22-1167 & MESSAGE 22-11627, LAST FLT REVIEW. REPLACED MCP WITH SERVICEABLE ONE. ACCOMPLISHED INSTALLATION TEST, & LLM MAINT TESTS, TESTS PASSED IAW AMM 22-11-34-400-801, & 22-11-34-839-001.
DURING A PRACTICE CAT III HGS, AUTOLAND TO RWY, WIND REPORTED AS CALM AND CRITICAL AREA CONFIRMED CLEAR, AT APPROX 150 FT, THE AIRCRAFT DRIFTED RIGHT OF CENTER LINE AND REMAINED RIGHT OF CENTERLINE UNTIL CROSSING THRESHOLD WHEN AIRCRAFT SLIGHTLY BANKED LEFT TOWARD CENTERLINE. THROTTLES RETARDED TO IDLE AND AIRCRAFT PITCHED OVER TOWARD THE RUNWAY. AIRCRAFT CONTINUED TOWARD CENTERLINE, FLARED AND TOUCHED DOWN SLIGHTLY, LEFT WING LOW ON LEFT MAIN, BOUNCED AND TRACKED THE CENTERLINE ON ROLLOUT. TOUCHDOWN WAS WITHIN ALLOWABLE TOUCHDOWN ZONE LIMITS. HGS GUIDANCE CLOSELY FOLLOWED AUTOPILOT. ACFT GROUNDED. ACCOMPLISHED LLM MAINT TEST FOR INBOUND CONDITION. DFCS BITE PROCEEDURE GROUP 20 & MAINT PRACTICE GRP 49, TEST PASSED IAW AMM 22-00-01-730-807. ACCOMPLISHED INBOUND CONDITION FOR HGS LLM TESTS SYS, TEST PASSED IAW AMM 22-00-01-839-003.
PERFORMING T/C 78273000 FOUND #2 ENGINE MX MESSAGE 77-20872 TOP LEFT EGT SIGNAL OUT OF RANGE ECONOMIC FAULT. GROUNDED - YES. TROUBLESHOT PER B737-800 FIM 77-21. FOUND MESSAGE HAS BEEN CLEARED AT THIS TIME. NOT PRESENT IN CURRENT OR HISTORY. EEC TEST GOOD. AIRCRAFT RELEASED PROM PLT.
PERFORMING T/C 78273000 FOUND #2 ENGINE MX MESSAGE 73-31372 ECONOMIC FAULT-UPPER EGT SECTORS READING TO HIGH. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 73-11 TASK 801. VERIFIED T49.5 EGT PROBE, S4, IS 100 DEG ABOVE THE AVERAGE OF S2 & S3. CLEANED EGT PROBES REF B737-800 AMM 77-21-00-140-801. INITIAL READINGS: S1- 47.30, S2- 33.61, S3- 32.84, S4- 146.34. AFTER CLEANING: S1- 42.65, S2- 32.21, S3- 31.27, S4- 39.47. ACCOMPLISHED EEC TEST REF AMM 73-21-00-700-804-F00. NO FAULTS FOUND. THIS CLEARS PLT.
NR 2 ENGINE STAGE 2 VSV SEGMENT SEAL ANTI-ROTATION PIN AT THE 9 O'CLOCK, HAS ROTATED 90 DEGREES AND BEGINNING TO UNSEAT FROM SEAL. ACFT GROUNDED. REPLACED THE ENGINE.
CONTROL CABIN COMES ON WITH MASTER CAUTION RECALL. ACFT GROUNDED. CLEARED THE NR 2 CONTROLLER FLIGHT DECK SELECTOR FAULT. ACCOMPLISHED BITE TEST OF BOTH CONTROLLERS IAW AMM 21-61-00. NO FAULTS NOTED. GROUND VERIFICATION SUCCESSFUL.
NR 2 ENGINE RECENT FAULTS SHOWS ECONOMIC FAULT 77-10852, BOTTOM RIGHT EGT PROBE OUT OF RANGE. ACFT GROUNDED. REPLACED THE NR 2 ENGINE DUE TO STAGE 2 VSV SEGMENT SEAL ANTI ROTATION PIN AT 9 O'CLOCK HAS ROTATED 90 DEGREES,
DURING FMC INTERROGATION FOR ENGINE FAULTS, THE NR 2 ENGINE RECENT FAULT CODE 73-10312 FOR THE START SWITCH SIGNAL AND ARINC BUSS DISAGREE. ACFT GROUNDED. PERFORMED FIM 73-24, TASK 813, NO FAULTS FOUND DURING INITIAL EVALUATION. FAULT CODE 73-10312 WAS ALSO NOT ACTIVE IN RECENT FAULTS OR FAULT HISTORY. PERFORMED REPAIR CONFIRMATION IAW FIM 73-24 TASK 813. ALL TESTS PASSED, FAULT NO LONGER ACTIVE. CLEARS THE PLT.
RIGHT BLEED TRIP OFF LIGHT ILLUMINATED WHILE BEING MOVED FROM REMOTE PARKING, WILL NOT RESET. ACFT GROUNDED. PERFORMED FIM 36-10, TASK 801, PARAGRAPH 8. BLEED TRIP OFF LIGHT GOES OUT WITH BAR DISCONNECTED. REPLACED THE BAR IAW AMM 36-11-03, REPAIR CONFIRMATION GOOD, BAR OP CHECKED GOOD. BLEED TRIP OFF LIGHT REMAIN OFF, ACFT OK FOR SERVICE.
NR 2 BLEED TRIP OFF LIGHT ON FINAL APPROACH. RAN QRH ON AND LIGHT EXTINGUISHED. ACFT GROUNDED. ACCOMPLISHED PNEUM SYST TROUBLESHOT IAW AMM 36-11-00. ALL VALVES WRENCH CHECKED GOOD. FAILS STEP 5C, PRECOOLER VALVE DOES NOT CLOSE. CHECKED SENSE LINES FOR LEAKS AND NONE FOUND. CHECKED PLUG AT 390 SENSOR AND WTAI SOLENOID, VALVE STILL WILL NOT CLOSE. SUSPECT VALVE INTERNAL LEAK. RECONNECTED ALL LINES AND CLOSED ALL PANELS. REMOVED AND REPLACED HIGH STAGE VALVE REF AMM 36-11-06. ALSO REMOVED AND REPLACED BLEED AIR REGULATOR REF AMM 36-11-03. REPLACED ENG NR 2 PRECOOLER CONTROL VALVE IAW AMM 36-12-02. INSTALLATION TEST OK ALL LEAKS CHECK S AND OPS CHECKED GOOD.
LEFT FMC FAILED. PERFORMED QRH PROCEDURE, DID NOT RECOVER LEFT FMC. ACFT GROUNDED. CONFIRMED FAULT, LT FMC INOPERATIVE. REPLACED LT FMC IAW AMM 34-61-02, CROSS-LOADED ALL SOFTWARE IAW AMM 34-61-00-201 & FMCS PERFORMANCE FACTORS IAW AMM 34-61-00-800-801, OPS CHECKED NORMAL IAW AMM 34-61-00.
WHILE PERFORMING TASK CARD 78273000, NR 2 ENGINE BITE SHOWS FAULT 77-10852, ECONOMIC FAULT, BOTTOM RIGHT EGT SIGNAL T495S2 IS OUT OF RANGE. ACFT GROUNDED. PERFORMED INITIAL EVALUATION IAW FIM 77-21, TASK 802. NO ACTIVE FAULTS NOTED.
AFTER THE POWER TRANSFER FROM GROUND TO APU, THE RIGHT FMC WENT BLANK. ACFT GROUNDED. CYCLED ACFT POWER. RT FMC CAME BACK UP, OPS CHECKED GOOD IAW AMM 34-61-02.
EXPERIENCED MULTIPLE INTERMITTENT WEATHER RADAR FAILURES ENROUTE. BOTH THE CAPTAIN`S & FIRST OFFICER`S RADAR DISPLAYS WOULD BLANK AND WX FAIL AND PWS FAIL WOULD BE ANNUNCIATED ON THE ND'S. ACFT GROUNDED. ACCOMPLISHED A WEATHER RADAR BITE IAW FIM 34-43, TASK 801, NO DEFECTS NOTED, OPENED RADOME FOUND D000119 J1 CONNECTOR NOT LOCKED, INSPECTED CONNECTOR AND SECURED THE CONNECTOR WITH NO DEFECTS NOTED. DUE TO HISTORY REMOVED AND REPLACED THE WEATHER RADAR TRANSCEIVER IAW AMM 34-43-41. ALL GROUND FUNCTIONAL TESTS PASSED.
WEATHER RADAR WILL NOT GIVE TEST PATTERN ON DISPLAY. ACFT GROUNDED. AFTER POWER UP WEATHER RADAR TESTED GOOD. GROUND VERIFICATION TEST GOOD IAW FIM 34-43 TASK 801.
FUEL DRIPPING BELOW NR 2 ENGINE. GROUNDED - YES. REMOVED & REPLACED NR 2 ENG RT VSV ACTUATOR IAW AMM 75-31-01-401 OPS TEST GOOD. LK CK GOOD.
NR 1 ENGINE BITE SHOWS FAULT 77-20871, TOP LEFT EGT OUT OF RANGE ECONOMIC FAULT. ACFT GROUNDED. VERIFIED FAULT MESSAGE, S4 SHOWS DASHES ON INPUT PAGE. SHAKEDOWN OF CJ10 CAUSE INPUT TO GO IN AND OUT. REMOVED & REPLACED CJ10 HARNESS IAW AMM 73-21-06-400-803, FADEC SYSTEM TEST PASSED ENGINE RUN CONFIRMS.
NR 2 ENGINE BITE SHOWS FAULT 77-10852 BOTTOM RIGHT EGT. ECONOMIC FAULT. ACFT GROUNDED, OUT OF RANGE IAW FIM 77-21 TASK 802, FAULT 77-10852 SHOWS ACTIVE. REMOVED AND INSTALLED A NEW S2 EGT PROBE IAW AMM 77-21-01. PERFORMED NR 2 ENGINE EEC TEST SYS CHECKED NORMAL. NEW READINGS ARE S1= 43.59, S2=20.97, S3=22.55, AND S4= 40.09.
"SPEED TRIM FAIL" LIGHT ILLUMINATED ON RECALL - EXTINGUISHED UPON RESET. GROUNDED - YES. PERFORMED FLIGHT CONTROL SYSTEM BITE PROCEDURE REF AMM 22-11 TASK 801. PASSES ALL TESTS. LAND VERIFY TESTS PASS REF AMM 22-00-01. HGS OPERATIONAL TESTS PASS REF AMM 34-36-00. LWMP STATUS REMAINS CAT 111A AUTOLAND + HGS. NO HISTORY 30 DAYS.
FOUND NR 1 ENGINE LONG TERM RECENT FAULT MESSAGE 75-20391. THE VSV POSITION SIGNAL IS OUT OF RANGE. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 ENGINE VSV ACTUATOR.
FOUND THE NR 1 ENGINE WITH LONG TIME FAULT 75-20391. THE VSV POSITION SIGNAL IS OUT OF RANGE. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 VSV ACTUATOR.
START LEVER CIRCUIT BREAKER TRIPPED. ACFT GROUNDED. CIRCUIT BREAKER P-18 RESET IAW IAW AMM 20-60-01-860-801. CIRCUIT BREAKER REMAINS SET.
FOUND NR 1 ENGINE WITH LONG-TIME FAULT 76-31361. THE START LEVER SIGNALS DISAGREE. ACFT GROUNDED. ACCOMPLISHED EEC TEST ON THE NR 1 ENGINE IAW AMM 73-21-00-700-804-F00. NO FAULTS ACTIVE. NO RECENT FAULTS OR FAULT HISTORY.
WHILE PERFORMING MAINTENANCE, FOUND MAINTENANCE MESSAGE 75-20391, FOR THE VSV POSITION SIGNAL IS OUT OF RANGE. LONG TERM FAULT ON NR 1 ENGINE. ACFT GROUNDED. FIM 75-31 TASK 803 ACCOMPLISHED VSV ACTUATOR CHANNEL B (LEFT SIDE) RESISTANCE OUT OF LIMITS. REMOVED AND REPLACED THE LT VSV ACTUATOR IAW AMM 75-31-01-00-801-F00, AND AMM 75-31-01-400-801-F00.
SATCOM LOCKED UP. ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE IAW QRH. SATCOM RESTORED NORMAL.
APU EGT TREND DATA SHOWS EGT HAS SHIFTED ABOVE THE MAINTENANCE THRESHOLD OF 593 BUT LESS THAN 605 DEGREES. ACFT GROUNDED. REMOVED & REPLACED BOTH APU THERMOCOUPLES IAW AMM 49-71-21. OPS NORMAL, NO FAULTS FOUND.
IN DESCENT RT BLEED TRIP OFF LIGHT ILLUMINATED ENGINE ANTI-ICE WAS ON. WING ANTI ICE OFF. RT PACK TEMP INDICATED 26 DEGREES. GROUNDED - YES. ACCOMPLISHED FIM 36-10 TASK 801 STEP 15 PASSES ALL TESTS WITH ENGINE RUN. RT ENG BLEED TRIP OFF LITE ADVISORY SYSTEM OPS CHECK GOOD. NO HISTORY 30 DAYS.
AUTOLAND FAILED. TOUCHDOWN WELL LEFT OF CENTERLINE. CALM WINDS: (AUTO SPEED BRAKE ALSO DID NOT DEPLOY) HGS ACCEPTABLE FOR USE. ACFT GROUNDED. IAW FIM TASK 22-11 TASK 825, AUTOLAND BITE GROUP 49 GOOD. NO FAULTS IN FAULT HISTORY A & B. ACCOMPLISHED LAND VERIFY BITE GROUP 49.
GOUND POWER DROPPED OFFLINE WHEN SWITCHED TO APU GEN ,THE NR 2 FMC DID NOT COME BACK ON. ACFT GROUNDED. FOUND THE NR 2 FMC CDU BLANKED OUT . CYCLED AND RESET NR 2 FMC CDU CIRCUIT BREAKER, NR 2 FMC CDU POWERS BACK NORMALLY. ATTRIBUTE CAUSE TO TRANSFER OF POWER IAW AMM 34-61-01-400-802.
NO SATCOM ON MCDU MENU PAGE. ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURES PER QRH. SATCOM OPS RESTORED NORMAL.
SAT LOCKUP. ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE PER QRH. SATCOM OPS RESTORED NORMAL.
NR 2 ENGINE B FIRE LOOP WILL NOT TEST. ACFT GROUNDED. REMOVED AND REPLACED ENGINE AND APU FIRE DETECTION MODULE, IAW AMM 26-10-01. OPS CHECKED GOOD.
RIGHT HORIZONTAL STAB LOWER SKIN, HAS A ONE INCH CRACK AT REAR SPAR HSS 97. ACFT GROUNDED. REMOVED DAMAGED AREA IAW SRM 55-10-01, FABRICATED DOUBLER AND FILLERS IAW SRM 55-10-01, ALODINED IAW SRM 51-20-01, PRIMED IAW SRM 55-10-01 AND SOPM 20-44-0. INSTALLED THE REPAIR IAW SRM 55-10-01.
LEFT HORIZONTAL LOWER SKIN, 3/4" CRACK FOUND 8" FROM REAR SPAR STA 157.1. ACFT GROUNDED. REPAIRED THE SKIN IAW SRM 55-10-01-2R-11.
RIGHT HORIZONTAL LOWER SKIN, 3/4" CRACK FOUND 8.5" FROM REAR SPAR HSS 157.1. ACFT GROUNDED. REMOVED DAMAGE AREA IAW SRM 55-10-01, FABRICATED DOUBLER AND FILLER IAW SRM 55-10-01, ALODINED DOUBLER AND FILLER IAW SRM 51-20-01, PRIMED DOUBLER AND FILLER IAW SRM 55-10-01 & SOPM 20-44-04, INSTALLED DOUBLER AND FILLER IAW SRM 55-10-01, PAINTED REPAIRED AREA IAW AMM 51-21-99.
RIGHT HORIZONTAL LOWER SKIN, 1/2" CRACK FOUND 9" FROM REAR SPAR STA 138.7. GROUNDED - YES. REMOVED DAMAGE AREA I.A.W B737-800 SRM 55-10-01. FABRICATED DOUBLER AND FILLER I.A.W B737-800 SRM 55-10-01, ALODINED DOUBLER FILLER I.A.W B737-800 SRM 51-20-01, PRIMED DOUBLER AND FILLER I.A.W B737-800 SRM 55-10-01 & SOPM 20-44-04,INSTALLED DOUBLER AND FILLER I.A.W B737-800 SRM 55-10-01, PAINTED REPAIRED AREA I.A.W B737-800 AMM 51-21-99. THIS IS A CATEGORY B REPAIR WITH INSPECTION THRESHOLD OF 56,000 TOTAL COMPONENT FLIGHT CYCLES, WITH A DETAIL VISUAL INSPECTION AND EXTERNAL (LFEC) INTERNAL OF 9,000 FLIGHT CYCLES.
CAPT FD WARNING SYMBOL. FD COMMAND BAR AND LIGHT ON MCP ALSO NOT WORKING. GROUNDED - YES. FCC A WOULD NOT GO INTO BITE. REMOVED AND REPLACED FCC A IAW B737-800 AMM 22-11-33. OPS CHECKED NORMAL. ACCOMPLISHED LRU REPLACEMENT TEST DFCS/FCC/AT, REF B737-800 AMM 22-11-33 BITE GROUP #35. ALL TESTS PASS. ACCOMPLISHED LAND VERIFY, REF B737-800 AMM 22-11-00 BITE GROUP #49. ALL TESTS PASS. ACCOMPLISHED HGS SENSOR TEST FOR FCC/AT, REF SMM 34-36-00. ALL TESTS PASS. A/C IS CATIIIA A/L HGS QUALIFIED, STATUS SCREW IS IN THE CATIIIA A/L HGS POSITION. ALL GROUND TESTS PASS.
AFCS SYS A WARN LIGHT (BAT) BREAKER POPPED. ACFT GROUNDED. INSPECTED AND RESET C/B AFCS SYS A WARN LT (BAT), IAW AMM 20-60-01. OPS CHECKED AFCS ANNUNCIATOR, IAW AMM 22-11-32. OPS CHECKED NORMAL.
L1 DOOR WILL NOT OPEN FROM INSIDE OR OUTSIDE. OPEN DOOR HANDLE, DOOR DROPS INTO THE HOLE WITH NO ROTATION, APPEARS TO BE AN ISSUE WITH UPPER GUIDE ARM. ACFT GROUNDED. FOUND L1 DOOR GUIDE ARM LOWER RADIUS LINK DISCONNECTED FROM PIVOT PIN DUE TO SHEARED KEY WASHER RETENTION SCREW. REPLACED PIVOT PIN, KEY WASHER, AND RETENTION SCREW IAW AMM 52-11-21-400-802 PARAGRAPH 3.G.(4). DOOR OPS CHECKS NORMAL.
RIGHT PACK BLEED OFF STAYED ILLUMINATED. BLEED TRIP DID NOT RESET PER QRH. LIGHT CAME ON BETWEEN 6000-7000 FEET BEFORE LANDING. ACFT GROUNDED. PERFORMED TASK CARD NG-36WC-00001. NO DEFECTS NOTED. DUE TO HISTORY REMOVED AND REPLACED RT PRE COOLER CONTROL VALVE SENSOR IAW AMM AMM 36-12-03-000/400-801 AND RT 450 DEG THERMOSTAT IAW B737-800 AMM 36-11-05-000/400-801. LEAK CHECK GOOD. PERFORMED ENGINE MAINTENANCE RUN -HIGH POWER 10 MIN FOR ETOPS VERIFICATION. NO R/H BLEED TRIP. PERFORMED ENGINE BLEED AIR CROSSOVER OPERATIONAL TEST REF B737-800 AMM 36-11-00-710-801. NO DEFECTS NOTED.
NR 2 ENGINE "B" LOOP INOPERATIVE. ACFT GROUNDED. FOUND NR 2 ENGINE FAN UPPER FIRE DETECTOR ASSY LOOP B CONNECTOR CRIMP SEPARATED TERMINAL FROM WIRE. RECRIMPED NEW TERMINAL ON NR 2 ENGINE FAN UPPER FIRE LOOP B CONNECTOR IAW WDM 26-11-11. PERFORMED ENGINE APU FIRE DETECTION BITE IAW FIM 26-10, TASK 801. NO FAULTS NOTED. NR 2 ENGINE FIRE LOOP B TEST NORMAL. RETURNED NR 2 ENGINE FIRE LOOP SWITCH TO BOOTH POSITION. THIS CLEARS MEL 26-2B.
R1 DOOR EXIT SIGN COVER WILL NOT STAY ATTACHED. ACFT GROUNDED. REPLACED THE LIGHT ASSY. OPS NORMAL.
NR 2 COWL VALVE OPEN LIGHT ILLUMINATED BRIGHT BLUE WITH ENGINE ANTI-ICE SELECTED ON. ASSOCIATED TAI AMBER LIGHT ILLUMINATED. LIGHT WENT OUT WITH ENGINE ANTI-ICE SELECTED OFF. ACFT GROUNDED. RAN ENGINE, AND FOUND NR 2 COWL VALVE NO TRANSITION "BRIGHT BLUE" WHEN SELECTED ON. NO AMBER LIGHT NOTED. NOTED SLOW RESPONSE TIME FOR INDICATION ON CDS SCREEN. REMOVED AND REPLACED NR 2 ENGINE COWL ANTI-ICE VALVE, STEPS A -H(5)(1). IAW AMM 30-21-11. COMPLETED NR 2 ENGINE TAI VALVE INSTALLED IAW AMM 30-20-11 STARTING AT 3H5C. BOND TEST GOOD. LEAK AND OPS TEST NR 2 ENGINE TAI VALVE GOOD.
R1 DOOR HANGS UP DURING CLOSING. ACFT GROUNDED. FOUND UPPER GUIDE ARM OUT OF ADJUSTMENT. ADJUSTED THE GUIDE ARM IAW AMM 52-41-00. OPS CHECKED GOOD.
CONTROL CABIN ZONE TEMP LIGHT ILLUMINATES ON "RECALL" ONLY NO RESET. ACFT GROUNDED. NR 2 CONTROLLER SHOWS TRIM VALVE FLT DECK FAULT. FAULT CLEARED & BITE TEST GOOD IAW AMM 21-61-20.
FIRST OFFICER`S MCDU WENT BLANK ON POWER TRANSFER. ACFT GROUNDED. ACCOMPLISHED FIM 34-36 TASK 803. OPS CHECKED NORMAL.
CURRENT STATUS FOR THE APU SHOWS MAINT MESSAGE 49-61259 SPEED SENSOR 1 SHOWS OPEN CIRCUIT ACFT GROUNDED. APU TROUBLESHOT IAW FIM 49-60 TASK 817 AND WDM 49-62-12. ECU REMOVED AND REPLACED IAW AMM 49-61-12. OPS CHECKED GOOD.
ON ENGINE START NR 2 AFTER START LEVER RAISED TO IDLE, MASTER CAUTION LIGHT OVERHEAT/DETECTOR AND ENGINE 2 OVERHEAT LIGHT ON FIRE PANEL ILLUMINATED. SHUTDOWN NR 2 ENGINE PRIOR TO STARTER CUTOUT. CONTINUED MOTORING ENGINE FOR 3 MINUTES, ESTIMATED, NR 2 FIRE LIGHT ILLUMINATED. PULLED & ROTATED FIRE HANDLE AND DISCHARGED BOTTLE. LIGHT WENT OUT, LESS THAN 30 SECONDS LATER FIRE HANDLE ILLUMINATED AGAIN. ROTATED HANDLE TO SECOND BOTTLE, DISCHARGED NORMALLY. FIRE LIGHT EXTINGUISHED. ENGINE 2 OVERHEAT LIGHT REMAINED ILLUMINATED FOR MORE THAN 20 MINUTES. ACFT GROUNDED. ACCOMPLISHED AMM TASK 71-00-00-800-803-F00 INSP AFTER AN ENGINE FIRE, USE OF FIRE EXTINGUISHER AGENTS. NO DEFECTS NOTED. PERFORMED DRY MOTOR OF NR 2 ENGINE REF AMM 71-00-00. R & R BOTH FIRE BOTTLES T/C 78126000. REF L/P 11604697, ACCOMPLISHED ENGINE/APU FIRE DETECTION BITE REF FIM 26-10, TASK 801, TEST PASSED. ACCOMPLISHED NR 2 ENGINE WIRING HARNESS/FIRE DETECTOR FAULT ISOLATION REF FIM 26-10, TASK 805, ALL VALUES WITHIN LIMITS. R & R MW0326 & MW0325 REF AMM 26-11-02, OPS CHECK NORMAL. R & R NR 2 ENGINE LT AND RT CORE DETECTOR ASSEMBLIES REF AMM 26-11-01, OPS CHECK NORMAL. R & R MW0315 FAN FIRE DETECTION HARNESS REF AMM 26-11-02, OPS CHECK NORMAL. NR 2 ENGINE FIRE OVERHEAT LIGHT STILL ILLUMINATES DURING START. R & R ENGINE AND APU FIRE DETECTION MODULE, REF AMM 26-10-01, NO HELP, INSTALLED ORIGINAL UNIT, OPS CHECK NORMAL, NR 2 OVERHEAT LIGHT.
NR 2 BLEED TRIP OFF ILLUMINATED AT CRUISE FLIGHT FL380, RAN QRH 2.4 AND PRESSED TRIP RESET SWITCH NR 2 BLEED TRIP OFF LIGHT EXTINGUISHED FOR DURATION OF FLIGHT. ACFT GROUNDED. ACCOMPLISHED FIM 36-10, TASK 801, STEP F. DETERMINED PRECOOLER CONTROL VALVE FAILURE ALONG WITH BLOWN DIAPHRAGM ON THE PRSOV. PRECOOLER CONTROL VALVE R & R, REF AMM 36-12-02. PRSOV R & R, REF AMM 36-11-04. ALL LEAK CHECKS & OPS CHECKS GOOD. ACCOMPLISHED BLEED TRIP OFF LIGHT REPAIR CONFIRMATION, REF FIM 36-10, TASK 801, PARAGRAPH 15 A THRU I , OPS CHECK NORMAL.
ELECTRIC LIGHT ILLUMINATED ON GROUND PRIOR TO PUSH BACK AND ENGINE START. ACFT GROUNDED. FOUND STATIC INVERTER TO BE BAD REF FIM 24-31, TASK 801. R & R STATIC INVERTER REF AMM 24-34-21. SYS OPS CK GOOD IAW SAME.
ELECTRIC MESSAGE LIGHT ILLUMINATED UPON APU START UP ON OVERHEAD PANEL. ACFT GROUNDED. REPLACED STANDBY POWER CONTROL UNIT. REPLACED STATIC INVERTER, PN 1-002-0102-2090, SN CJ006190 ON E2-2 EQUIPMENT RACK. FIXED DAMAGED CONNECTORS, TERMINALS, WIRES. OPS CHECK OF SPCU AND STATIC INVERTER GOOD REF AMM24-34-11 AND AMM24-34-21. RAN APU WITH NO FAULTS ON BITE TEST OF ELECTRIC PANEL.
ELECTRIC LIGHT ILLUMINATED ON FWD OVERHEAD PANEL. ACFT GROUNDED. ACCOMPLISHED ELECTRIC LIGHT BITE PROCEDURE, CLEARED, STAT INV INOPERATIVE I, FAULT AND ACCOMPLISHED BATTERY TEST SUB, TASK 24-31-11-860-041-002. OPS NORMAL, ACFT CKS GOOD FOR SERVICE. ELECTRIC LIGHT BITE REF FIM 24-31, TASK 801.
DURING SHUTDOWN, THE ELECTRIC CAUTION LIGHT ILLUMINATED. ACFT GROUNDED. COMPLIED WITH FIM 24-31, TASK 801 & 24-34, TASK 801. FOUND FAULT, STAT INV INOPERATIVE. FOUND STANDBY POWER WIRE NOT SECURED TO STATIC INVERTER. WHERE BURN MARKS WERE DISPLAYED ON WIRE LUG. R & R STATIC INVERTER IAW AMM 24-34-21-000-801 & 24-34-21-400-801. OPS CHECK GOOD. REF EA 800-24EA-17041, STATIC INVERTER GROUND WIRE TEMP REPAIR COMPLIED WITH.
ELECTRIC LIGHT ILLUMINATED ON FORWARD OVERHEAD PANEL. ACFT GROUNDED. CLEARED FAULT IAW FIM TASK 24-31, TASK 801, BITE PROCEDURE. FAULT DID NOT REAPPEAR.
UPON BLOCKING, THE EXTERNAL POWER DROPPED OFF ABOUT 4 TIMES . THE APU STARTED AND PUT ON THE BUSES. RT MCDU WENT BLANK AND WOULD NOT REPOWER UP. ACFT GROUNDED. FIM 34-61, TASK 809, RESET POWER TO F/O`S MCDU. MDCU POWER RESTARTED. ACFT RELEASED TO ETOPS SERVICE.
WHILE ACCOMPLISHING T/C 78233001 EMERGENCY LIGHTING SWITCH, OPS CHECK AND BATTERY PACK FUNCTIONAL CHECK FOUND FWD LEFT/BATTERY PACK FAILED CHECK. ACFT GROUNDED. R & R FWD LT BATTERY PACK POWER SUPPLY AND BATTERY PACK, IAW AMM 33-51-106. TEST MODE CHECKS GOOD.
MCP PANEL BACKLIGHTING MAKES DIFFICULT TO SEE DIGITS, ESPECIALLY ALTITUDE SETTING. ACFT GROUNDED. R & R DFCS MODE CONTROL PANEL IAW AMM 22-11-34. SYS OPS CHECKS NORMAL IAW SAME, GROUND VERIFICATION SUCCESSFUL. DFCS BITE GROUP NR 32 & 49 AND HGS SENSOR TEST IAW AMM 34-36-00 PASS, ACFT REMAINS CAT III AUTOLAND/HGS.
AUTOTHROTTLES NOT WORKING. ACFT GROUNDED. FOUND CB AUTOTHROTTLE DC-1 OPEN. RESET CB REF AMM 20-60-01. PERFORMED AUTOTHROTTLE BITE AND FOUND NO FAULTS CURRENT STATUS. FLT LEG 01 HAS FAULT 22-31263. PERFORMED FIM 22-31, TASK 810. ALL TESTS PASSED. PERFORMED LWMP TESTS REF AMM 22-31-10, FIM 22-11, TASK 802, BITE GROUP 43 LRU REPLACEMENT TEST FOR A/T. TESTS PASS.
OVERHEAD "ELECTRIC LIGHT" ON. ACFT GROUNDED. ACCOMPLISHED P5-13 ELECTRIC LIGHT MESSAGE BITE CHECK IAW FIM TASK 24-31-801 FOUND STAT INV INOPERATIVE. INTERMITTENT MESSAGE. CLEARED MESSAGE, NO FURTHER DEFECTS NOTED.
NR 2 FUEL QUANTITY INDICATING SYSTEM FAIL, SYSTEM TEST REF AMM 28-41-00-730-801. ACFT GROUNDED. OPENED MIG-2C, SN'S 313274, 313275, 313276, 313277. PROBE REPLACEMENTS, INSPECTIONS AND LEAK CHECKS PERFORMED ON THESE DOCUMENTS. MIG-2C SN'S 313274, 313275, 313276, 313277 CLOSED. NR 2 FUEL QUANTITY, OP CHECKS NORMAL. SYSTEM TEST GOOD REF AMM 28-41-00-730-801. COMPARISON CHECK GOOD REF AMM 28-41-00-720-80.
F/O MCDU 2L INOPERATIVE. ACFT GROUNDED. R & R F/O FMCS MCDU. OPS CHECK GOOD, REF AMM 34-61-01.
DURING NR 2 ENGINE LEAK CHECK FOR OTHER MAINTENANCE, FOUND FUEL SERVO LEAKING AT TOP SPLIT LINE. ACFT GROUNDED. REMOVED NR 2 ENGINE SERVO FUEL HEATER IAW AMM 73-11-07. INSTALLED REPLACEMENT, TESTED NR 2 ENGINE SERVO FUEL HEATER IAW AMM 73-11-07-400-801-F00 AND TESTED REF AMM 71-00-00-800-811-F00, TABLE 502.
LEFT PACK ANNUNCIATOR LIGHT CAME ON DURING RECALL, AFTER ENGINE START THEN EXTINGUISHED WHEN MASTER CAUTION WAS PRESSED. NO OTHER LIGHT. ACFT GROUNDED. BITE CHECK OF NR 1 PACK/ZONE TEMP CONTROLLER SHOWS, THIS PACK TCV, FAULT. R & R LT TEMP CONTROL VALVE IAW AMM 21-51-10. BITE, OPS AND LEAK CHECK GOOD.
APPROXIMATELY 3:10 INTO FLIGHT WHILE BURNING FUEL, TANK NR 1 FUEL QUANTITY INDICATED 8560 LBS WHILE NR 2 FUEL QUANTITY INDICATOR 7970 LBS AT THIS POINT BOTH FUEL USED TOTALIZERS INDICATED IDENTICAL FUEL BURN TO THE EXACT POUND BETWEEN ENGINE NR 1 AND ENGINE NR 2 AT CONCLUSION OF FLIGHT, NR 1 FUEL QUANTITY INDICATED 3400 LBS AND NR 2 FUEL QUANTITY INDICATED 3600 LBS. FUEL USED TOTALIZERS INDICATED AS FOLLOWS : 17,440 BURNED ENGINE NR 1 AND 17360 BURNED FOR ENGINE NR 2. ACFT GROUNDED. R & R FUEL QUANTITY PROCESSOR UNIT REF AMM 28-41-81. OPS TEST NORMAL REF AMM 28-41-00. NO FAULTS.
NR 2 MAIN TANK FUEL INDICATION UNRELIABLE. INDICATION SLOW DECREASE UNTIL STABILIZING AT 7,450, 1050 LOW, WHILE DRAWING FUEL FROM ONLY THE CENTER TANK. ONCE STARTED FEEDING TANK TO ENGINE, NR 2 READ APPROXIMATELY 600 ACCORDING FUEL LOGS. ACFT GROUNDED. FOUND WATER CONTAMINATION IN COMPENSATOR UNIT AND FAULTS 28-41203. REPLACED NR 2 MAIN TANK COMPENSATOR UNIT. FQIS SYS TEST NORMAL REF AMM 28-41-00-730-801 AND COMPENSATOR INSTALLATION REF AMM 28-41-21. ACCESS PANEL LEAKS CHECKED GOOD REF AMM. 28-11-11.
WHILE BURNING OUT OF CENTER TANK, STARTED NOTICING SLOW DECREASE IN NR 2 MAIN TANK QTY FUEL MONITORING INDICATED LOSS OF 1300 LBS BETWEEN 2 WAYPOINTS 1.5 THIS CORRESPONDS WITH WHAT WE SAW ON THE NR 2 FUEL GAUGE DECISION WAS MADE TO RETURN TO DEPARTURE, BY THE TIME WE LANDED THE PROBLEM SELF CORRECTED SUSPECT UNRELIABLE NR 2 FUEL GAUGE. TOTAL FUEL USED FINAL QTY. AGREED WITH DEP FUEL. ACFT GROUNDED. DIVERSION TIME, 99 MINUTES. PERFORMED VENT AND DRAIN INSPECTION ON BOTH ENGINES IAW AMM 71-71-00. NO LEAKS WERE NOTED. PERFORMED FQIS BITE TEST IAW FIM 28-41, TASK 801 NO FAULS NOTED GROUND TEST PASS. PERFORMED FUEL SUMPING ON ALL TANKS SUMP CKECKS GOOD PERFORMED FQIS WITH FUEL STICK COMPARRISON CHECK GOOD, ACFT OK FOR SERVICE.
DURING ETOPS PRE-DEPARTURE CHECK, FOUND FUEL DRIPPING AT BOTTOM OF NR 2 ENGINE. ACFT GROUNDED.
WHILE ACCOMPLISHING TC 78273000, FOUND FAULT CODE 77-20862 ON NR 2 ENGINE, BOTTOM LT EGT SIGNAL OUT OF RANGE. ACFT GROUNDED, ON DEFERRAL.
WHILE ACCOMPLISHING TC 78273000, NR 2 ENGINE FAULT MSG 77-20872, THE TOP LT EGT SIGNAL, (T495-S4) IS OUT OF RANGE. THIS IS A LONG TIME FAULT TO BE REPAIRED WITHIN 450 FLT HRS. ACFT GROUNDED. ON DEFERRAL.
LEFT PRIMARY PACK INOPERATIVE. ACFT GROUNDED. ACCOMPLISHED NR 1 & NR 2 TEMP CONTROLLERS BITE TEST IAW TASK 21-61-00-700-806-002. FOUND TCV FAULT ON NR 1 CONTROLLER RESET AND BITE WAS GOOD. RAN PACKS FOR 20 MINUTES, NO FAULTS.
FOUND FAULT NR 2 ENGINE, MSG NR 77-20862, THE BOTTOM LT EGT SIGNAL, T49553 IS OUT OF RANGE. " ECONOMIC FAULT " TO BE REPAIRED WITHIN 500 FLT HRS. ACFT GROUNDED. ON DEFERRAL.
WHILE ACCOMPLISHING TC 78273000, NR 2 ENGINE FOUND FAULT ECONOMIC MSG NR: 77-20862 THE BOTTOM LT EGT SGNAL, T495S3 IS OUT OF RANGE, FLIGHT LEGS: 1, 2, 3, MSG NR: 77-20872, THE TOP LT EGT SIGNAL, T495S4 IS OUT OF RANGE, LONG TERM FAULT. MUST BE CORRECTED IN 450 HOURS. ACFT GROUNDED. ACCOMPLISHED T/C 78273000. NR 2 ENGINE T495 S4 TEMP SHOWS DASHES. REF FIM 77-21, TASK 804. PIN TENSION ON CJ9 HARNESS S3 AND S4 CONNECTORS ARE LOOSE. REF AMM 73-21-06-000. R & R CJ9 CORE ENGINE HARNESS. OPS TEST NORMAL.
LEFT PACK LIGHT ILLUMINATES ON RECALL. EXTINGUISHES ON MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED BITE OF PACK/ZONE TEMP CONTROLLER REF MM 21-61-20-400-801. NR 1 CONTROLLER SHOWS RAM AIR ACTUATOR FAULT IN PREVIOUS HISTORY. REPLACED LT RAM AIR INLET ACTUATOR REF MM 21-51-21-400-801. OPS CK GOOD IAW THE SAME. REACCOMPLISHED BITE OF PACK/ZONE CONTROLLER WITH NO FAULTS NOTED.
"ELECTRIC" LIGHT ILLUMINATED ON PREFLIGHT. ACFT GROUNDED. P5-13 PANEL LOGGED SPCU INOPERATIVE, NO HISTORY PERFORMED, FIM TASK 24-34, TASK 802. NO CURRENT FAULTS. OK FOR SERVICE. GROUND VERIFICATION SUCCESSFUL.
FOUND FAULT, NR 2 ENGINE- 77-20862, THE BOTTOM LT EGT SIGNAL, T495S3, IS OUT OF RANGE. ACFT GROUNDED. FOR NR 2 ENGINE ACCOMPLISHED T49.5 PROBE AND EGT SYS INSPECTION IAW AMM 77-21-01-200-801-F00. INITIALLY NOTED VERY HIGH RESISTANCE WHEN TESTING J10 CONNECTOR DP1010 AT ELECTRONIC ENGINE CONTROL FOR BOTH S3, BOTTOM LT AND S4, UPPER LEFT. ACCOMPLISHED EGT CLEANING PROCEDURE IAW 77-21-00-140-801. AFTER CLEANING THE RELATED CIRCUIT CONNECTORS J10 CONNECTOR DP1010 RESISTANCE VALUES ARE NOW IN LIMITS AS ARE CJ10 HARNESS, PROBE SECTOR S3, AND S4 IAW AMM 77-21-01-200-801-FOO, STEP 2G. ACCOMPLISHED ELECTRONIC ENGINE CONTROL TEST IAW 73-21-00-700-804-F00 WITH NO FAULTS.
WHILE ACCOMPLISHING FMC CDU NR 2 ENGINE FOUND MSG 77-20872. THE TOP LT EGT SIGNAL CT495 IS OUT OF RANGE. ACFT GROUNDED, ON DEFERRAL.
WHILE ACCOMPLISHING T/C 78273000, FOUND A LONG TERM FAULT MSG 77-20872, TOP LT EGT SIGNAL, T495S4, IS OUT OF RANGE ON NR 2 ENGINE. ACFT GROUNDED. ACCOMPLISHED FIM 77-21 TASK 804. ACCOMPLISHED ELECTRONIC ENGINE CONTROL TEST REF MM 73-21-00-700-804-F00. OPS CK GOOD WITH NO FAULTS FOUND.
RIGHT AFTER LIFTOFF, ON TAKEOFF, NR 2 ENGINE EGT SHOWED A MOMENTARY TEMPERATURE EXCEEDANCE LASTING LESS THAN FIVE SECONDS. TAKEOFF POWER WAS AT 27K MAX THRUST. TAKEOFF SETTING WAS AT OUTSIDE TEM OF 27 DEGREES C. ENGINE INDICATION NORMAL THE REST OF FLIGHT. ACFT GROUNDED. ACCOMPLISHED FMC ENGINE 2 BITE AND FOUND FAULTS 77-20862 AND 77-20872 IN HISTORY. ACCOMPLISHED EGT SYS INSPECTION IAW AMM 77-21-01-200-801-F00. FOUND S3 AND S4 PROBE SEGMENTS BOTH HIGH OUT OF RANGE. R & R THEM BOTH IAW AMM 77-21-01-401, OPS GOOD. ACCOMPLISHED EGT EXCEEDANCE RESET FOR ENGINE 2 IAW AMM 71-00-00-740-801-F00.
FMC SINGLE OPS DISPLAYED IN SCRATCH PAD WITH FMC CAUTION LIGHT. LT FMC FAILED. ACFT GROUNDED. AFTER FAILURE, CREW SWITCHED TO "BOTH ON RIGHT" IAW QRH. SELECTED "NORMAL" AND BOTH FMCS OPS NORMAL. ACCOMPLISHED ADDITIONAL FAULT ISOLATION IAW FIM 34-61, TASK 837. FOUND SEVERAL INTERMITENT MISCOMPARE FAULTS ON LAST LEG. ACCOMPLISHED 34-61, TASK 801, LT FMC OPS NORMAL.
WHILE ACCOMPLISHING T/C 78273000, NR 2 ENGINE FAULT MSG 77-20862, THE BOTTOM LT EGT SIGNAL, T495-S3 IS OUT OF RANGE. THIS IS A LONG TIME 450 HRS FAULT. ACFT GROUNDED. ON DEFERRAL.
FOUND ECONOMIC, 500 HR, FAULT ON ENGINE 32 TOP LT EGT SIGNAL, T495S4, IS OUT RANGE. FAULT 77-20872 ON FLIGHT LEGS 1, 2, 3. ACFT GROUNDED, ON DEFERRAL.
NR 2 ENGINE OVERHEAT TEST INOPERATIVE IN BOTH, TESTS OK IN A. ACFT GROUNDED. RAN NR 2 ENGINE IDLE AT THE GATE FOR 10 MINUTES, UNABLE TO DUPLICATE FAULT. ACCOMPLISHED GVI INSPECTION BOTH UPPER FAN AND LOWER FAN FIRE DETECTORS, FOUND DAMAGED UPPER FAN FIRE DETECTOR LOOP ASSY. R & R NR 2 ENGINE UPPER FAN FIRE DETECTOR ASSY, M1757 REF AMM TASK 26-11-01, GROUND FUNCTIONAL CHECK NORMAL, REF AMM TASK 26-11-00-710-801.
ELEC LIGHT ON "SIX-PACK" CAME ON AND BATTERY DISCHARGE LIGHT OVERHEAD OBSERVED ON. BATTERY AMPS OBSERVED NEGATIVE FOR 3 MINUTES, THEN BATTERY DISCHARGE ANNUNCIATOR WENT OUT AND STAYED OUT. BATTERY AMPS READ ZERO AND REMAINED AT ZERO. AUX BATTERY READ ENTIRE TIME. ALL THIS OCCURED AT CRUISE AFTER 1.5 HOURS OF FLIGHT TIME. ALL OTHER INDICATIONS NORMAL. FIFTEEN MINUTES LATER BATTERY DISCHARGE ANNUNCIATOR CAME ON AGAIN FOR 45 SECONDS. ACFT GROUNDED. ACCOMPLISH BITE ON ELEC PANEL "NO FAULTS STORED" REF MM 24-31, TASK 801. BOTH BATTERY CHARGERS SHOW NO FAULTS. R & R BOTH BATTERIES AS PRECAUTIONARY, OPS NORMAL REF MM 24-31-11.
ON TAXI OUT FMC DISAGREE. ACFT GROUNDED. RAN CHECKLIST FMC DISG WENT AWAY.
FOUND ECONOMIC, 500 HR, FAULT ON ENGINE NR 2. TOP LT EGT SIGNAL, T495S4, IS OUT OF RANGE. FAULT 77-20872 ON FLIGHT LEGS: 1, 3, 5, 6, 7, 8, 10. ACFT GROUNDED. ON DEFERRAL.
R1 DOOR OUT OF RIG. ACFT GROUNDED. FOUND R1 DOOR TO BE WITHIN ADJUSTMENT, IAW MM TASK 52-41-00-820-801. OBSERVED UPPER HINGE, LOWER GUIDE PLATE LOOSE, ATTACH BOLTS NOT SECURE. TORQUED ATTACH BOLTS REF DWG NR 141A6504, BAC 5009. R-1 DOOR OPERATES NICELY.
"FMC DISAGREE" ALERT ON GROUND. ACFT GROUNDED. FOLLOWED QRH. SYSTEM RESET NORMALLY.
REF T/C 78273000, NR 2 ENG FAULT 77-20872. TOP LT EGT SIGNAL T495S4 IS OUT OF RANGE. ACFT GROUNDED.
BLUE MAINT LIGHT ON APU-AFTER SHUTDOWN LIGHT LIGHT WENT OUT. ACFT GROUNDED. PERFORMED APU BITE CHECK 49-60-801. NO CURRENT STATUS FAULTS. FOUND MX MESSAGE 49-311171. PERFORMED FIM TASK 49-31-808. ALSO CONFIRMED 2 SUCCESSFUL APU GROUND STARTS. OK FOR CONTINUED SERVICE.
FOUND TR UNIT LIGHT ILLUMINATED DURING PPR-FLIGHT. GROUNDED - YES. CREW ALSO REPORTS A/C WOULD NOT ACCEPT GROUND POWER. FOUND TRU 1, TRU 2, AND TRU 3 C/B'S OUT. CHECKED. NO HISTORY - 60 DAYS. GVI BEHIND PANELS AND AT TRU'S GOOD. SUSPECT GROUND POWER FAULT, MISSING A PHASE. RESET SAME 3 EA C/B'S. THEY RESET NORMAL AND STAY IN. REF MM 20-60-01. OPS CHECK SAME TRU 1, TRU 2, AND TRU 3. NO TRU FAIL LIGHT ON. REF MM 24-32-11.
EXIT SIGN BY L1 DOOR CAME OFF IN THREE PIECES. ACFT GROUNDED. REPLACED EMERGENCY EXIT SIGN, OPS CHECKED GOOD. IAW AMM 33-51-01-960-802.
CONTROLLER CABIN ZONE TEMP LIGHT ILLUMINATES ON RECALL AND EXTINGUISHES ON RESET. ACFT GROUNDED. NR 2 PACK ZONE TEMP CONTROLLER LOGGED FLT DECK TRIM VALVE IN FAULT HISTORY. FAULT CLEARS. RAN TEST AGAIN WITH NO FAULTS. NO HISTORY LAST 30 DAYS.
FMC DISAGREE ON THE GROUND. ACFT GROUNDED. PERFORMED QRH PROCEDURE, NORMAL OPS RESTORED.
NR 2 ENGINE HAS FAULT 77-20862 BOTTOM LT EGT SIGNAL T49553 IS OUT OF RANGE. ACFT GROUNDED.
EMERGENCY EXIT ROW 17 DEF MISSING EMERGENCY LIGHT COVER. GROUNDED - YES. INSTALLED NEW EMERGENCY EXIT LIGHT COVER @ ROW 17 DEF AS REQUIRED. OPS CKD GOOD, REF AMM 33-51-01-960-801.
WHILE ACCOMPLISHING T/C 78273000, NR 2 ENGINE, FOUND MSG NR 77-20872. THE TOP LT EGT SIGNAL IS OUT RANGE, ECONOMIC FAULT. ACFT GROUNDED. ACCOMPLISHED 50 HR REINSPECT. NO FAULTS FOUND. CLEARS PLT.
ON GROUND, AFTER PUSHBACK RECEIVED AN FMC DISAGREE ALERT. ACFT GROUNDED. FOLLOWED QRH PROCEDURES TO RESOLVE. NORMAL OPS RESTORED.
REF. T/C 78472000, NR 1 ENGINE INLET AND FAN BLADES-DETAILED INSPECTION, FOUND 2 EA STRUT PANELS HAVE LOOSE SCREWS. AT 7 O'CLOCK & 8 O'CLOCK POS, NR 7 & 8 PANEL. ACFT GROUNDED. TIGHTEN 2 EA STRUT PANELS AT 7 O'CLOCK & 8 O'CLOCK POSITION, NR 7 & 8 PANELS ON NR 1 ENGINE REF AMM 70-20-02.
NR 1 ENG FAN BLADE SHIM AND ELESTOMER STOPS ARE WORN. ACFT GROUNDED. R & R IAW TC 78472002.
WEATHER RADAR FAILED. ACFT GROUNDED. PERFORMED WEATHER RADAR SYSTEM BITE PROCEDURE FIM 34-43, TASK 801, NO FAULTS. GROUND VERIFICATION TEST SUCCESSFUL IAW MM 34-43-00 WXR SYSTEM. OPS TEST. NO HISTORY LAST 90 DAYS.
WHILE ACCOMP T/C 78273000, FOUND NR 2 ENGINE WITH ECONOMIC FAULT 77-20862, BOTTOM LT EGT SIGNAL, T495S3, OUT OF RANGE. ACFT GROUNDED. REMOVED ALL EGT CONNECTIONS FROM EEC TO EGT SWITCHED. CLEANED AND INSP. FOUND CORE HARNESS INST. FOR SWITCH 3 & 4 SHORTED TO GROUND. REPLACED HARNESS WITH NEW ONE. RECONNECTED ALL CONNECTIONS FROM EGT SWITCHES TO EEC. RAN ENGINE FOR 5 MIN AND VERIFIED NO MORE EGT FAULT FOR ENG. NR 2 ACCOMPLISH EEC TEST, TEST PASS NO EEC FAULT. ACCOMPLISH ACTUATORS TEST, TEST PASS NO ACTUATORS FAULTS, REF MM 77-21-01-400-801, 73-21-06-400-803, & 77-21-00-140-801.
STAB OUT OF TRIM LIGHT ILLUMINATED, CONDITION WERE LEVEL FLAP 5 AUTO PILOT A ENGAGED. RAN CHECKLIST, AFTER A/P DISCONNECTED LIGHT EXTINGUISHED AND DIDN'T ILLUMINATE AGAIN. TRIM OPERATED NORMALLY. ACFT GROUNDED. ACCOMPLISHED STABILIZER MOTOR TEST IAW AMM REF 22-11-81, TEST PASSED FOR BOTH A/P CHANNELS.
NR 2 ENGINE AMBER TAIL LIGHT ILLUMINATED, WITH THROTTLE AT IDLE LIGHT WAS STILL ILLUMINATED. ACFT GROUNDED. REPLACED NR 2 ENGINE INLET COWL THERMAN ANTI-ICE VALVE IAW AMM 30-21-11. SYSTEM OPS CHECK AND LEAK CHECK GOOD. VERIFIED AMBER TAIL LIGHT EXTINGUISHED DURING IDLE ENGINE RUN.
OVER HATCH EMERGENCY LIGHT AT 16ABC INOPERATIVE. ACFT GROUNDED. FOUND CONNECTOR AND RECEPTACLE ALONG WIRE W3142-0236-16 LOOSE OR DISCONNECTED. SECURED CONNECTOR AND RECEPTACLE, OPS CHECKED GOOD IAW AMM 33-51-00-710-801.
F/A REPORTS AFT LEFT LAV EMERGENCY LIGHTING COVER POPPED OFF. ACFT GROUNDED. INSTALLED NEW LENS FOR EMERGENCY EXIT LIGHT, AISLE, AFT LAV. OPS CKS NORMAL.
FMC DISAGREE ON TAXI OUT. ACFT GROUNDED. RAN QRH PROCEDURE. FMC'S BACK TO NORMAL.
NO ROTATION ON NR 2 ENGINE. START VALVE OPEN LIGHT REMAINED ILLUMINATED AFTER SELECTING START SWITCH TO OFF. ACFT GROUNDED. PERFORMED OPS CHECK OF START VALVE OPERATION, IAW MM 71-00-00-800-808. OPS CHECKED GOOD ALL PARAMETERS NORMAL. NO HISTORY 30 DAYS.
L2 DOOR EXIT LIGHT COVER DETACHED. ACFT GROUNDED. SECURED EXIT LIGHT COVER. OK FOR SERVICE.
NR 2 ENGINE TREND DATA SHOWS A SHIFT IN DELTA CRUISE AND TAKE-OFF MARGIN INDICATIVE OF EGT INDICATION ERRORS. ACFT GROUNDED. ACCOMPLISHED TECH SERVICES REQUEST, FOUND S3 PROBE OUT OF LIMITS. R & R S3 PROBE. OPS NORMAL REF 77-21-01.
LIQUID DRIPPING UNDERNEATH RT ENGINE. ACFT GROUNDED. FOUND HYD FLUID FROM NR 2 ENGINE EDP CASE DRAIN. R & R EDP FILTER AND TEFLON RINGS IAW AMM 29-11-51-400-801. RAN ENGINE LEAK CHECK GOOD.
CAPTAIN`S MCDU IS BLANK. ACFT GROUNDED. TROUBLESHOT FOUND CAPTAINS CDU BLANK. DOWN POWERED ACFT, SYSTEM DID NOT RESTORE. REMOVED REF AMM 34-61-01. INSTALLED SERVICEABLE UNIT REF AMM 34-61-01. GROUND VERIFICATION CHECKS GOOD. OK FOR SERVICE.
AT CRUISE, DUCT PRESSURE RT-41, LT -23 PSI. AT DUCT PRESSURE STABILIZED RT-40, LT-39 PSI. ACFT GROUNDED. PERFORMED NR 1 ENGINE BLEED AIR SYS HEALTH CHECK REF AMM 36-00-00-860-807. FOUND HSV AND PCV VALVES OUT OF TOLERANCE. NR 1 ENG PCV R & R, PERFORMED INSTALLATION TEST AND CKD GOOD REF MM 36-12-02 AND LEAK CK GOOD. R & R HSV ON NR 1 ENG PERFORMED INSTALLATION TEST AND CHECKED GOOD, IAW AMM 36-11-06 AND LEAK CHECKED GOOD.
EXIT LIGHT LENS ON OVERWING EXIT MISSING. ACFT GROUNDED. FOUND RT FWD EMERGENCY EXIT LENS COVER-REINSTALLED COVER REF 33-51-01.
DIAGNOSTICS REPORTED NR 2 ENGINE TREND DATA SHOWED A SHIFT IN DELTA CRUISE AND TAKEOFF MARGIN INDICATIVE OF EGT INDICATION ERRORS. ACFT GROUNDED. T49.5 RESISTANCE CHECKED, ALL VALUES WITHIN LIMITS, FOUND CONNECTOR DP0901 NOT SECURE WITH EVIDENCE OF LIGHT CORROSION ON SOCKETS. REMOVED CORROSION AND SECURED CONNECTOR. PERFORMED TEST 73-21-00-700-804-F00, IAW 71-00-00-800-811-F00, TBL 502, 7, TESTS GOOD.
DUAL FMC FAIL FOR ABOUT 3 MINUTES. HAPPEN JUST BEFORE LEVEL OFF AT CRUISE WHILE ENTERING DIRECT IN THE LEGS PAGE. FOLLOWED QRH AND THE FMCS RESET THEMSELVES. WE HAD TO RELOAD ALL THE INIT DATA AND PERF DATA. THE LANDING ALT FLAG WAS DISPLAYED UNDER THE VSI FOR ANOTHER HOUR THEN CLEARED ITSELF. ACFT GROUNDED. FMC BITE SHOWS LT FMC FAILED ON PREVIOUS FLT & ON GROUND. REPLACED LT FMC REF MM 34-61-02. OPS CKD NORMAL.
THE FOLLOWING MESSAGE WOULD POP UP EVERY 3-5 MINUTES FMC SCRATCH PAD MESSAGE CRUISE WIND UPLINK READY APPEARED MULTIPLE TIMES THROUGH OUT THE FLIGHT. WHEN ATTEMPTING TO LOAD THE WINDS THERE WAS NEW DATA AVAILABLE WHICH WE LOADED. WE WOULD THEN GET MULTIPLE MESSAGES WITH THE SAME INFO AND HAVE TO RELOAD THE WINDS MULTIPLE TIMES. THIS DOES NOT AGREE WITH THE INFORMATION IN FLT HANDBOOK BULLETIN 13-7. ACFT GROUNDED. ACCOMPLISHED FMCS BITE REF MM 34-61, TASK 801, NO DEFECTS FOUND, ACFT CKS GOOD FOR SERVICE, NO HISTORY 90 DAYS.
CONT CABINE ZONE TEMP CAUTION LIGHT ILLUMINATED ON RECALL WITH NO RESET. ACFT GROUNDED. FAULT RESETS WITH MASTER CAUTION RESET. CLEARED NR 2 CONT CABIN TEMP VALVE FAULT. ACCOMPLISHED BITE TEST OF PACK/TEMP CONTROLLERS IAW AMM 21-61-00. NO FAULTS NOTED.
LEFT WING ANTI ICE VALVE OPEN LIGHT ILLUMINATES BRIGHT WITH SWITCH IN EITHER POSITION. ACFT GROUNDED. REPLACED LT WING ANTI-ICE VALVE IAW MM 30-11-11, VALVE TEST CHECKED GOOD.
FMC DISAGREE ANNUNCIATED. ACFT GROUNDED. QRH PROCEDURES ACCOMPLISHED RESULTING IN NORMAL OPS.
AUTOTHROTTLE ALLOWS MACH TO INDICATE .02 GREATER THAN SELECTED BEFORE BEGINNING TO REDUCE THROTTLE. EXAMPLE SET TO .76, SPEED WENT TO .785 NEAR REDLINE BEFORE REDUCING. FL 360, TAT -21. WORKED OK ON APPROX FOR HOLDING INDICATED AIRSPEED. ACFT GROUNDED. NO INFLT FAULTS, A/T CURRENT STATUS AND A/T SERVO MOTOR TESTS GOOD. NO HISTORY LAST 60 DAYS PLUS.
DURING CHECK, FOUND BATTERY PACKS FAILED. ACFT GROUNDED. CHANGED OUT BATTERY PACKS.
NR 2 ENGINE, BLUE COWL VALVE OPEN LIGHT STAYS ON WITH SWITCH IN OFF POSITION. DURING DECENT AND LANDING, AFTER ENGINE SHUTDOWN LIGHT WENT OUT. ACFT GROUNDED. CHECKED POWER AND GROUNDS AT NR 2 ENGINE COWL THERMAL ANTI ICE VALVE CONNECTOR DP1303. ALL OK. REF WDM 30-21-11 PAGE 1. REPLACED NR 2 ENGINE COWL ANTI ICE VALVE REF MM 30-21-11-400-801. LEAK AND OPS CHECKED GOOD. GROUND VERIFICATION SUCCESSFUL.
NR 2 ENGINE ANTI-ICE VALVE SHOWING DISAGREEMENT WITH SWITCH WHEN SELECTED ON, AMBER TAI INDICATOR ON UPPER DU. ACFT GROUNDED. RAN NR 2 ENGINE VERIFIED DISAGREEMENT WITH SWITCH WHEN SELECTED ON AMBER TAI INDICATED. REPLACED NR 2 ENGINE COWL TAI VALVE IAW AMM 30-21-11-401. GROUND VERIFICATION SUCCSSFUL IAW TASK 30-21-11-401.
FMC DISAGREE ANNUNCIATED DURING TAXI. ACFT GROUNDED. QRH PROCEDURES FOLLOWED AND MESSAGE DISAPPEARED.
WHILE ACCOMPLISHING EA 800-74EA-10870, NR 1 ENGINE, STEPS NR 7 AND NR 15 FAILED DIMENSION TWO CHECK OF IGNITERS. ACFT GROUNDED. REMOVED NR 1 ENGINE, IAW T/C 78471000. INSTALLED NEW NR 1 ENGINE, IAW T/C 78471001.
APU FAILED TO START. ACFT GROUNDED. PERFORMED APU BIT. FAULT CODE 49-41250 PRESENT. REMOVED APU START CONVERTER UNIT IAW AMM 49-41-61-000-801 INSTALLED APU START CONVERTER UNIT IAW AMM 49-41-61-400-801 3.F.(1). OPS CK GOOD, REF MM 49-41-61.
ON TAXI OUT, FMC DISAGREE LIGHT CAME ON. ACFT GROUNDED. ACCOMPLISHED QRH FMS RESET WITH NO LIGHTS.
LEFT PACK LIGHT ILLUMINATED. PACK SWITCH PLACED OFF IAW QRH. ACFT GROUNDED. ACCOMPLISHED LT AND RT PACK ZONE TEMP CONTROLLER BITE REF FIM 21-62, TASK 801. NO FAULTS LOGGED. RAN LT PACK FOR 40 MINUTES. NO PACK LIGHT NOTED. DUE TO HISTORY IAW SEAM C, R & R A/C MODULE IAW AMM TASK 21-51-65-000-801 AND 21-51-65-400-801. INSTALLATION TEST PASSED IAW SAME. ETOPS SIGNIFICANT SYS VERIFIED.
PACK TRIPPED. ACCOMPLISHED QRH PROCEDURE IAW A PACK LIGHT. RESET PACK LIGHT ILLUMINATED. TURNED PACK OFF IAW PROCEDURES AND CALLED MX CONTROL. ACFT GROUNDED. FAULT INITIALLY RESET AFTER THIRD ATTEMPT. FAULT RETURNED AFTER RUNNING PACKS FOR 15 MINUTES. . REPLACED LT PACK COMPRESSOR DISCHARGE OVERHEAT SWITCH IAW AMM 21-51-40-000-801 AND -400-801. FAULT REMAINS. LIGHT NOW FLICKERS. NO FAULTS ON CONTROLLER. REPLACED LT PACK/TEMP CONTROLLER IAW AMM 21-61-20-000-801 AND -400-801. PACK FAULT LIGHT ILLUMINATES AFTER OPERATING PACK FOR 30 MINUTES, AND WOULD NOT RESET. NO FAULTS ON CONTROLLER. DURING LT PACK OPERATION NOTED PACK TEMPATURE NEVER EXCEEDED 27C. ALL LT PACK TEMPS NORMAL. NOTED THAT AFTER APPROX 30 MIN PACK LIGHT ILLUM BUT PACK DID NOT SHUTDOWN. SWAPPED ACAUS IAW AMM 21-51-02-000-801 AND 21-51-02-400-801. RAN BOTH PACKS FOR APPROX AN HOUR WITH NO FAULTS NOTED. SWAPPED ACAUS TO ORIGINAL POSITIONS IAW REF AMM. REPLACED LT ACAU IAW AMM 21-51-02-00-801 & 21-51-02-400-801. PERFORMED M324 TEST IAW SAME WITH NO DEFECTS NOTED. GROUND VERIFICATION SUCCESSFUL.
WHILE PERFORMING T/C 78273000 NR 2 ENGINE HAS FAULT MSG 76-31362. THE START LEVER SIGNALS DISAGREE. ACFT GROUNDED. PERFORMED TASK 78273000. NO FMC CDU FAULTS NOTED. PLT CLEARED. SEAM C, NOTIFIED.
FMC DISAGREE. ACFT GROUNDED. FOLLOWED QRH. FMC DISAGREE CORRECTED.
LEFT SIDE WINDOW HEAT LIGHT NOT ILLUMINATED WITH SWITCH ON. ACFT GROUNDED. COOLED WINDSHIELD, SYS TESTED GOOD REF TASK 30-441-00-710-801.
NR 1 ENGINE WOULD NOT START. MADE TWO ATTEMPTS WITH IGN RT SELECTED WITH NO LIGHT OFF. FUEL FLOW SHOWED 0.0 FOR ABOUT 3-5 SECONDS AFTER START LEVER RAISED TO IDLE THEN .5 FOR A FEW SECONDS THEN 1.5 VERY BRIEFLY AND RT BACK TO .5. AFTER 5-10 SECONDS FUEL FLOW DROPPED TO 0 WITH START LEVER STILL AT IDLE. ACFT GROUNDED. VERIFIED IGNITOR RT NR 1 ENG FAULT USING AMM 74-00-00-750-801. REPLACED NR 1 ENG RT IGNITOR IAW AMM 74-21-02 TASK 401. FOUND OBVIOUS DAMAGE TO REMOVED IGNITOR. PERFORMED AUDIBLE TEST ON BOTH LT & RT NR 1 ENG IGNITORS IAW AMM 74-00-00-040-802-F00. NO DEFECTS NOTED BOTH IGNITORS OPERATED PROPERLY. PERFORMED EEC BITE TEST IAW FIM 73-00, TASK 801, NO FAULT HISTORY.
ABORTED NR 1 ENGINE START, DUE TO 0 FUEL FLOW. SECOND START ATTEMPT ABORTED, DUE TO FF BUT NO LIGHT OFF. THIRD START ATTEMPT SUCCESSFUL WITH BOTH SELECTED ON IGN. FIRST TWO START ATTEMPTS WERE MADE ON RT IGN. ACFT GROUNDED. ACCOMPLISHED BITE & OPS CHECK, ALL SYS PASSED. POSSIBLE INTERMITTENT FAULT, REF TASK 74-21-TASK 807.
ON CLIMB OUT, DUCT PRESSURES READ 10,000 L 22 PSI ; R 42, FL 190, L 23 - R 43, FL 290, L 23, R 44. WHEN THROTTLES REDUCED AT LEVEL OFF FL 310 THE DUCTS STABILIZED AT 47 PSI EACH. ACFT GROUNDED. ACCOMPLISHED HEALTH CHECK ON NR 1 ENGINE REF T/C NG-36WC-00001. FOUND NR 1 ENG PRE-COOLER CONTROL VALVE AND NR 1 ENG HIGH STAGE VALVE, BAD. REPLACED NR 1, ENG PRE-COOLER CONTROL VALVE. OPS/LEAK CHECKS GOOD REF AMM 36-12-02. REPLACED NR 1, ENG HIGH STAGE VALVE. OPS/LEAK CHECKS NORMAL REF AMM 36-11-06. ETOPS SIGNIFICANT SYS GROUND VERIFICATION ACCOMPLISHED.
NR 1 ENGINE HAD NO LIGHT-OFF (IGNITION LT WAS SELECTED) ACFT GROUNDED. PERFORMED FIM TASK 74-21, TASK 806, FOUND LT IGNITER PLUG BAD. REPLACED NR 1 ENG LT IGNITER PLUG IAW MM 74-21-02-400-801, MM 74-21-02-000-801, MM 74-21-02-200-801. PERFORMED AUDIBLE TEST IAW MM 74-00-00-750-801 AND THEN STARTED NR 1 ENG FROM LT IGNITER, OPS CHECKED GOOD.
AFT CARGO FLOOR SUPPORT HAS DOUBLE DRILLED HOLES, BS 757, RBL 15. ACFT GROUNDED. REPAIRED IAW SRM 53-00-53-2R-3.
AFT CARGO BAY TRANSITION PANEL CRACKED BS 727F - 727J. ACFT GROUNDED. R & R AFT CARGO RT TRANSITION PANEL IAW SRM 51-40-02.
NR 2 ENGINE FAN DUCT PANELS AT 1130 AND 1230 POSITIONS HAVE ONE PULLED THRU BOLTS. ACFT GROUNDED. R & R FAN DUCT PANELS IAW AMM 72-23-07.
AFTER ENGINE START , ON RECALL CONT CAB ZONE TEMP LT ILLUMINATED. LT EXTINGUISHES W/RESET. TEMP IS CONTROLLABLE W/SECONDARY CONTROLLER. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE TEST. CONTROLLER NR 2 LOGGED FLT DK TRIM VALVE FAULT. CLEARED & RERAN TEST PASSED.
DURING PUSHBACK, APU FAILED. TROUBLESHOOTING, APU BITE TEST SHOWED NO CURRENT FAULTS, FAULT CODE 49-91007 WAS LOGGED IN FAULT HISTORY. APU STARTED AND OPERATED NORMALLY. INSPECTED MAG. DRAIN PLUG FOR PARTICLES IAW MM 49-11-01, NO DEFECTS NOTED. MANUALLY TURNED APU IAW MM 49-21-00, NO DEFECTS NOTED. INSPECTED THE WIRE HARNESS IAW MM 49-11-01, NO DEFECTS NOTED. REPLACED THE LOW OIL PRESSURE SWITCH IAW MM 49-94-22, LK AND OPS CKS GOOD. REPLACED THE LUBE MODULE IAW MM 49-91-11, LK AND OPS CKS GOOD.
APU FAILED CSS START AT FL 360 -60C OAT MO 79 IAS 260 APU FAULT LIGHT CAME ON APU EGT REACHED 1040C. CSS RULED INCOMPLETE, NO SUBSEQUENT STARTS WERE ATTEMPTED. CDU LOGGED FAULT 49-31016, OVERTEMPERATURE SHUTDOWN. STARTED APU SEVERAL TIMES, COULD NOT DUPLICATE FAULT. ACCOMPLISHED FIM 49-30 TASK 803 STEPS A-F(3), (5) & (6). REPLACED INLET TEMP SENSOR AND INLET PRESSURE SENSOR REF MM 49-61-31-400-801 AND 49-52-31-400-801. APU BITE PROCEDURE GOOD REF 49-61-00-700-801.
FMC DISAGREE ON FLAP SELECTION AFTER ENGINE START. QRH ACCOMPLISHED WITH SUCCESSFUL OUTCOME.
L2 WINDOW SHATTERED OUTER PANEL. REPLACED L2 WINDOW REF AMM 56-12-11-400-801. ACCOMPLISHED CABIN PRESSURE LEAK TEST REF AMM 05-51-91-790-801, LEAK TEST GOOD. WINDOW HEAT SYS OPS TEST GOOD REF. AMM 30-41-00-710-801.
START NR 1 FAULT FL380. CSS START NR 2 RESULT FAULT FL 350. UNABLE TO CONDUCT START NR 3, DUE 5 MIN FAULT TIMER AND BELOW FL 290. FOUND BROKEN SHIELD TERMINAL AT BACKSHELL OF OIL TEMP SENSOR CONNECTOR P-15. REPLACED SHIELD TERMINAL ON OIL TEMP SENSOR CONNECTOR (P15). REF AMM 20-30-11. OPS CK GOOD. ACCOMPLISHED RESISTANCE AND CONTINUITY CHECKS BETWEEN OIL TEMP SENSOR AND ECU OK. REF FIM 49-90/806. FOUND NO METAL PARTICLES ON MAG DRAIN PLUG. APU MANUALLY TURNS WITHOUT ANY GRINDING. OIL PRESSURE IS STABLE AT 73 PSI, WITH LESS THAN .5 PSI FLUCTUATION. IAW ENGINEERING REQUEST, REPLACED LOW OIL PRESSURE SWITCH AND FUEL CONTROL UNIT. LEAK/OPS CHECK OK. REF. MM 49-91-81, MM 49-21-00-980-801, FIM 49-90 TSK 803 PARA. F(3), MM 49-91-11, MM 49-94-22, 49-31-11.
CLIMBING OUT, AROUND 12,500 HAD THE MASTER CAUTION ILLUMINATE DUE TO NR 1 ENGINE SOURCE OFF LIGHT. THE DRIVE LIGHT ALSO ILLUMINATED AND COMPLETED THE CHECKLIST WHICH INCLUDED DISCONNECTING THE GENERATOR DRIVE. RETURNED TO DEPARTURE. R & R NR 1 IDG REF MM 24-11-11-000-801 AND MM 24-11-11-400-801. PERFORMED TEST 3A IDLE POWER LEAK CHECK REF TASK 71-00-00-700-801-F00, NO LEAKS NOTED. PERFORMED OPS TEST FOR NR 1 IDG TASK 24-11-00-700-802. ALL INDICATIONS NORMAL.
APU SHUTDOWN. PERFORMED FIM 49-90, TASK 801, HIGH OIL TEMP SHUTDOWN, FOUND OIL LEAKAGE AT OIL COOLER SUPPLY LINE. REPLACED APU OIL COOLER IAW AMM 49-91-41. NO LEAKS NOTED. PERFORMED APU BITE PROCEDURE IAW AMM 49-60, TASK 801, NO CURRENT FAULTS FOUND AND CDU DOES NOT SHOW MAINTENANCE MESSAGE IN THE LAST APU CYCLE. APU, OPS NORMAL IAW AMM 49-11-00-860-801. MAINT CONTROL TECH SERVICES, REQUESTS REPLACEMENT OF THE APU SGU SCAVENGE OIL FILTER. REPLACED SCAVENGE FILTER IAW MM 49-91-12. OPS LEAK CHECKS GOOD.
APU SHUTDOWN AT GATE JUST PRIOR TO PUSHBACK. PERFORMED VISUAL INSPECTION OF APU. NO OIL LEAKS NOTED AND OIL LEVEL VISUALLY CONFIRMED TO BE FULL. PERFORMED FAULT ISOLATION PROCEDURES IAW FIM AR49-90-00-810-803. DURING MULTIPLE STARTS AND STOPS THERE WERE NO FURTHER FAULTS DETECTED AND CURRENT STATUS SHOWS NO FAILURES FOUND.
DIAGNOSTICS REPORTS NR 2 ENGINE TREND DATA CONTINUES TO SHOW A SHIFT IN DELTA CRUISE AND TAKEOFF MARGIN INDICATIVE OF EGT INDICATION ERRORS. ACCOMPLISHED T49.5 PROBE AND EGT SYS INSPECTION IAW MM 77-21-00-200-801-F00. ALL RESISTANCES AND INSULATION RESISTANCES WERE WITHIN LIMITS EXCEPT T49.5 PROBE S1 WHICH HAD LINE RESISTANCE BEYOND LIMITS. R & R NR 2 ENGINE T49.5 PROBE S1 IAW MM 77-21-01-000-801-F00/ MM 77-21-01-400-801-F00 AND PERFORMED EEC TEST IAW MM 73-21-00-700-804-F00. ALL TESTS PASS.
APU AUTO SHUTDOWN, NO FAULT LIGHT ILLUMINATED. ATTEMPTED SECOND START APU FAULT LIGHT ILLUMINATED. PERFORMED BITE CHECK OF APU TEST 49-60 / 801, NO FAULTS. INSPECTED APU FOUND OIL QUANTITY OVERSERVICED. INSPECTED MAGNETIC CHIP PLUG REF AMM47-91-81, NO FAULTS FOUND. ATTEMPTED THIRD START AND START NORMAL. ACFT OK FOR SERVICE.
CONT CAB ZONE TEMP LIGHT ILLUMINATED. EXTINGUISHED WITH MASTER CAUTION RESET. PERFORMED FIM 21-62, TASK 842. BITE TEST OF NR 2 ZONE TEMP CONTROLLER HAS FAULT, FLT DECK TRIM VALVE . CLEARED FAULT AND RAN PACKS. FAULT DID NOT RETURN. INTERMITTENT FAULT IAW FIM. NO HISTORY 30 DAYS.
DURING CRUISE FLT FL 380 L PACK SLOWLY DROPPED TO 10 PSI FOLLOWED BY A RAPID INCREASE TO 33 PSI CAUSING A PRESSURE SPIKE. THIS OCCURRED NUMEROUS TIMES. DESCENDED TO FL 250 AND SELECTED ENGINE ANTI -ICE DURING DESCENT AND PROBLEM WENT AWAY. OAT FL 380 -60C. ACFT GROUNDED. R & R PRSOV IAW TASK 36-11-04. OPS LEAK AND CHECKED OUT GOOD. R & R BLEED AIR REGULATOR IAW TASK 36-11-03. OPS LEAK AND CHECK OUT GOOD. PARTS VERIFIED BY MX. ACCOMPLISHED REVERSERAL OF ALT DEACTION PROCEDURES, REQUIRES FLIGHT OPS CHECK VERIFICATION. VERIFICATION FLIGHT SUCCESSFUL.
ON CLIMB OUT (ABOUT 25,000 FT) LT SIDE WINDOW OVERHEAT LIGHT CAME ON, FOLLOWED QRH, AFTER 3 MINUTES TURNED SWITCH ON, 1.5 MIN LATER OVER HEAT LIGHT CAME ON AGAIN, FINISHED QRH PROCEDURE. ACCOMPLISHED FIM TASK 30-41, TASK 811. FOUND 2 SENSOR FAULTS ON CONTROLLER. LAST 2 CYCLES. WINDOW OPERATED FINE ON GROUND. SENSOR OHMS AT 321 OHMS. WELL WITHIN TOLERANCE. REPLACED CONTROLLER AS PRECAUTIONARY. OPS GOOD IAW TASK 30-41-00-710-801.
FMC LETTER C DOES NOT WORK. REPLACED NR 2 MCDU OPS CK GOOD REF MM 34-61-01.
POSITIONING WING ANTI ICE ON BROUGHT A BRIGHT BLUE DISAGREEMENT LIGHT ON THE RT SIDE. UNABLE TO CHANGE WITH SWITCH. REPLACED THE RT ANTI ICE VALVE IAW AMM 30-11-11. LEAK AND OPS CHECKED GOOD IAW AMM 30-11-11.
REPORT OF LT FMC MCDU KEYS WITH NO TACTILE FEEL. ACFT GROUNDED. VERIFIED DISCREPANCY. REMOVED LT FMC CDU KEYBOARD, REF 34-61-01-000-801. INSTALLED NEW KEYBOARD REF 34-61-01-400-801. PERFORMED OPS CK IAW 34-61-01. SYS CHECKED NORMAL.
REF T/C SB737-22A1224-NG-1-1, LAND VERIFY TEST FAILS 49.32 (S051, ELEV POS SENSOR 1). BITE NR 32 STAB TRIM TEST INTERMITTENTLY FAILS ELEVATOR POSITION SENSOR ON CHANNEL A ONLY. ACCOMPLISHED STAB AND ELEVATOR RIGGING TEST REF MM 22-11-00, ALL VALUES ARE WITHIN LIMITS. ACCOMPLISHED PITCH FORCE TRANSDUCER TEST REF MM 22-11-92,TEST PASSED. ACCOMPLISHED CAPTS CONTROL COLUMN CUTOUT SWITCH TEST, TEST PASSED REF MM 27-41-00. FOUND FOS CONTROL COLUMN SWITCH OUT OF ADJUSTMENT. ADJUSTED SWITCH, REF MM 27-41-51. CONTROL COLUMN SWITCHES TEST NML, REF MM 27-41-00. ACCOMPLISHED DFCS LRU REPLACEMENT TEST FOR PITCH SENS, REF MM 22-11-30, DFCS LRU INTERFACE TEST FOR FCC, REF MM 22-11-33, LAND VERIFY TEST, REF MM 22-11-00, AND HGS SENSOR TEST FOR FCC/AT, REF SMM 34-36-00. ALL TESTS PASSED.
F/O MCDU SCREEN BLANKED AND ALL KEYBOARD ADVISORY LIGHTS ILLUMINATED. NEXT THE LIGHTS EXTINGUISHED. A MESSAGE FLASHED ON THE SCREEN AND NORMAL OPS RESUMED. ACFT GROUNDED. NO LOGGED FAULTS - SYS OPS OK.
NR 1 ENGINE WILL NOT START USING LT IGNITER. ACCOMPLISHED EEC L/R AUDIBLE TEST IAW AMM 71 00 00 150 801, FOUND LT IGNITER WEAK. REMOVED BOTH IGNITER PLUGS AND FOUND THEM SEVERELY WORN. REPLACED IGNITERS IAW 74 21 02 400 801. R & R IGNITION LEADS LT & RT IAW 74 21 01 000 801 AND 74 21 01 400 801. ENGINE STARTED USING LT AND RT IGNITERS. BITE TEST NO FAULTS NOTED.
AFTER START, CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED. ON RECALL, LIGHT EXTINGUISHED ON RESET. QRH PROCEDURE RUN WITH NO EFFECT. NR 2 ZONE TEMP CONTROLLER LOGGED FLT DECK TRIM AIR VALVE - BITE TESTED GOOD. FAULT RESET.
ALL LAVATORIES INOPERATIVE. PERFORMED TROUBLESHOOTING. R & R CONT LEVEL SENSOR IAW AMM 38-30-00-810-809 & 38-33-02-400-801. WHEN SENSOR REMOVED FOUND LAVATORY TANK PLUGGED WITH CLOTH TOWELS. REMOVED ALL BLOCKAGE FROM DRAIN VALVE. DRAINED , FILLED, CLEANED & REFILLED LAV WASTE TANK. ALL LAV FUNCTIONAL TEST OK. WASTE QTY IND STILL INDICATES FULL. CLEANED BOTH POINT LVL SENSORS IAW AMM 38-33-01-100-801. FULL LIGHT NO OUT, TANK SHOWS EMPTY, ALL LAV OPS CK OK. PERFORMED AUTO ZERO TEST IAW AMM 38-33-00-710-801. ALL LAVS NOW TEST OK. ACFT OK FOR SERVICE.
FMC DISAGREE ON TAXI OUT. QRH PROCEDURE COMPLIED WITH, OPS NORMAL.
APU SHUTDOWN WHILE RUNNING. LOW OIL PRESSURE LIGHT ILLUMINATED. F/A REPORTED A GRINDING SOUND IN REAR OF ACFT. ACFT GROUNDED. INSPECTED TAIL PIPE NO DAMAGE NOTED. INSPECTED INLET GUIDE VANES AND BLADES OF LOAD COMPRESSOR IMPELLER NO DAMAGE NOTED REF MM 49-21-00-200-801H(3). CHECKED CHIP DETECTOR FOR METAL, NO METAL NOTED OIL TANK FULL. REPLACED LOW OIL PRESSURE SWITCH REF MM 49-94-22 F 1H AND FIM 49-90-00. ACCOMPLISHED OPS CHECK AND CHECKED CDU FOR FAULTS, NO FAULTS NOTED. NO GRINDING SOUNDS NOTED.
AUTOLAND FAILED FLARE ARMED BUT ACFT DID NOT FLARE AND DRIFTED 200 LT OF CENTERLINE. SYS FAILED TEST 32, TEST SHOWS ELEV POS FAIL MSG 22-11125 ELEV POS SENSOR 1. ALSO FAILED LIBRARY TEST 35 TEST SHOWED AIL POS 1 AND 2 FAIL MSG 22-11145 AND 22-11146. ALSO NOTICED CAPT AND F/OS YOKE TO BE 1/2 DEG TO THE LT FROM CENTER. IAW FIM 22-12-812, ACCOMPLISHED ELEVATOR POSITION SENSOR ADJUSTMENT AND TEST IAW MM 22-11-30. ACCOMPLISHED DFCS LAND VERIFY TEST IAW MM 22-11-00/201. ALL TESTS PASS.
APU HAS TEMP START ISSUES. ACFT GROUNDED. REPLACED APU IAW T/C 78349010, OPS CHECKED GOOD.
WHILE ACCOMPLISHING TC 78472000 INLET INSP NR 1 ENG ESN 896511 FOUND LOUVER PANEL OTB 60 POSN HAD LOOSE FASTENERS. TIGHTENED LOUVER PANEL AT OTB 60 POSN REF AMM 72-23-07, STEP D (2) (A) 2.
WHILE ACCOMPLISHING FAN BLADE LUBE ON NR NR 2 ENGINE FOUND SHIMS WORN, REF T/C 78472002. ACFT GROUNDED. REPLACED 24 FAN BLADE SHIMS PN 340-252-307-0 IAW TASKCARD NR 78472002 ON NR 2 ENGINE.
FAULT LIGHT DURING INFLIGHT APU START. PERFORMED APU BITE CHECK, REF AMM 49-61-00. FOUND APU FAULTS FAULT HISTORY - FAULT 49-41010. NO ACCELERATION SHUTDOWN WITH 5 FLIGHT OCCURRENCES. FOUND APU FAULT -MX HISTORY - FAULT 49-31171, FUEL CONTROL UNIT FLOW DISAGREES WITH COMMAND - WITH 4 FLIGHT HISTORY OCCURRENCES. 2 OF THE ABOVE FLIGHT OCCURRENCES OVERLAP WITH EACH OTHER. PERFORMED FIM 49-31-00-810-808 INITIAL EVAL. NO FAULTS NOTED.
DURING ACCOMPLISHING LWMP UPGRADE, FOUND FAULT IN BITE GRP 49.32. ELEV POS FAIL- POS SENS -1 MSG 22-11125. R & R ELEVATOR POSITION SENSOR REF MM 22-11-30-400-801. ELEVATOR POSITION SENSOR ADJUSTMENT AND TEST PASSED REF MM 22-11-30-820-801. OPS NORMAL.
INCOMPLETE CSS, AFTER FIRST START ATTEMPT, FAULT LIGHT ILLUMINATED. NO SUBSEQUENT ATTEMPTS. ACCOMPLISHED FIM 49-30-00-810-803, REMOVED INLET TEMP SENSOR IAW AMM 49-61-31-000-801. REPLACED INLET TEMP SENSOR MM 49-61-31-400-801 PERFORMED INSTALLATION TEST IAW MM 49-61-00-700-801. OPS TEST GOOD.
APU WILL NOT START. APU FAULT MESSAGE PRESENT 49-31171 AND 49-41010. PERFORMED APU NORMAL START, APU STARTED WITH NO FAULT LIGHT. RAN APU FOR 10MINS, NO DEFECT NOTED. R & R FUEL FLOW DIVIDER AND SOLENOID IAW AMM 49-31-15. OPS CHECKED GOOD.
NR 1 FUEL QTY INDICATOR AND TOTAL FUEL WENT BLANK FOR A FEW SECONDS AND THEN CAME BACK, HAPPENED SEVERAL TIMES. ACFT GROUNDED. PERFORMED FQIS BITE 28-41-020-810-801. FOUND FAULT CODE 28-41109 SEVERAL TIMES. REMOVED AND INSTALLED NEW FQPU 28-41-81-400-801. PERFORMED OPS CHECK, REF 28-41-00-710-801. SYS CHECKED NORMAL.
THIRTY MINUTES INTO FLIGHT, AT FL350, APU FIRE DETECTOR INOPERATIVE LIGHT ILLUMINATED. WENT OUT 30 SECONDS LATER. FAULT COMFIRMED. PERFORMED APU/ENGINE FIRE DETECT MODULE BITE. FOUND APU TAIL DETECTOR INOPERATIVE. REMOVED APU TAIL DETECTOR 26-15-01-000-801. INSTALLED ELEMENT 26-15-01-400-801. PERFORMED OPS CHECKED APU DETECTOR 26-15-00. SYS CHECKED NORMAL.
DURING PDC WALKAROUND FOUND FUEL LEAKING FROM ENG NR 2. PERFORMED IDLE LEAK CHECK PER AMM 71-00-00-700-801-F00. FOUND NR 2 ENG VSV (RT) DRAIN, LEAKING 1 DROP IAW 70 SECONDS. REMOVED VSV ACTUATOR IAW MM 75-31-01-000. INSTALLED RT VSV ACTUATOR IAW MM 75-31-01-400, LEAK CHECKS GOOD. FOUND MESSAGE 75-10392 -VSV POS SIGNAL OUT OF RANGE. NR 2 ENGINE EEC BITE SHOWS FAULT 75-10392 STILL ACTIVE AND LOGGED EVERY FLIGHT LEG. NO OTHER FAULTS LOGGED. REF FIM 75-31-00-810-803-F00, AT CHANNEL A VSV ACTUATOR FOUND DP0902 PINS 4 TO 6 OPEN. VERIFIED GOOD J9 HARNESS FROM EEC TO CHAN A VSV ACTUATOR. R & R RT VSV ACTUATOR ON NR 2 ENG IAW AMM 75-31-01-400-802-F00.
ON CLIMB OUT, THE LT AND RT DUCT PRESSURE HAD A SPLIT OF APPROXIMATELY 20 PSI. THE SPLIT REDUCED TO ABOUT 8 PSI AT TOP OF CLIMB. AFTER LEVEL AT 350 THE LT DUCT READ 40 AND THE RT DUCT WAS 37 PSI. NOTE CLIMB PRESSURES LT 17, RT SIDE WAS 38 PSI. ACFT GROUNDED. ACCOMPLISHED NR 1 ENG BLEED AIR SYS HEALTH CHECK REF T/C NG-36WC-00001. PRECOOLER CONT VALVE FAILS - CLOSES TOO SOON. NO OTHER DEFECTS FOUND ON HEALTH CHECK T/C. REPLACED NR 1 ENG PRECOOLER CONT VALVE REF MM 36-12-02-000-801 & -400-801. ACCOMPLISHED BLEED AIR OPS TEST & REPAIR CONFIRMATION REF MM 36-11-00-710-801 & FIM 36-10-00-810-807. NO OPS DEFECTS NOTED.
NUMBER 1 FUEL QUANTITY ON THE UPPER DISPLAY PANEL WENT BLANK. TOTAL FUEL ALSO WENT BLANK. THIS OCCURRED SEVERAL TIMES FOR 5 SECONDS EACH TIME. ACFT GROUNDED. PERFORMED FQIS BITE IAW FIM 28-41-00 NO FAULTS NOTED. GROUND TEST INDICATES PASS. PERFORMED FQIS COMPARISION CHECK PERFORMED INDICATING SYS AND FUEL MEASURING STICKS IAW AMM 28-01-00 IN FUELING MANUAL. OPS CHECK NORMAL, NO HISTORY FOR 30 DAYS.
DURING BOROSCOPE INSPECTION OF NR 1 ENGINE, FOUND LT AND RT IGNITORS DAMAGED. R & R NR 1 ENG LT AND RT IGNITER PLUGS IAW T/C 78474000.
APU OVERHEAT DETECTOR INOPERATIVE LIGHT ON WITH MASTER CAUTION. CAME ON AT 500 AND WENT OUT AT TOUCH DOWN. APU WAS NOT RUNNING. ACFT GROUNDED. PERFORMED FIM 26-10-00-810-801, ENF/APU FIRE DETECTIONS CONTROLLER MOD BITE PROCEDURE. PASSED SEVERAL TIMES. VISUALLY INSPECTED 3 EA LOOPS FOR SECURITY & PROPER ROUTING. LIGHT REMAINED OFF DURING INSPECTION. GROUND VERIFICATION SUCCESSFUL,
AUTO FAIL LIGHT AND ALTN LIGHT ON. ACFT GROUNDED. MOVED MODE SELECTOR TO MANUAL THEN BACK TO AUTO FAULT CLEARED PERFORMED BITE CHECK ON CDC NR 1 AND NR 2 FIM 41-31-800-810-801, NO CURRENT FAULTS.
LEFT IGNITOR DID NOT START NR 1 ENGINE. RIGHT IGNITOR STARTED NR 1 ENGINE. ACFT GROUNDED. PERFORMED FIM 74-21 TASK 806, ACCOMPLISHED MAIN IGNITOR PLUG INSPECTION IAW AMM 74-21-02-200-801-F00. LEFT IGNITOR PLUG OUT OF LIMITS. PERFORMED MAIN IGNITOR PLUG REPLACED IAW AMM 74-21-02-000-801-F00 AND AMM 74-21-02-400-801-F00. PERFORMED AUDIBLE TEST OF THE IGNITION SYS EEC BITE IGNITORS TEST IAW AMM 74-00-00-750-801-F00. OPS CHECKED GOOD.
MASTER CAUTION LIGHT FAILED TO ILLUMINATE WITH BOTH CENTER FUEL PUMP LOW PRESSURE LIGHTS ILLUMINATED AND CENTER FUEL QTY AT ZERO. ACFT ENGINES WERE USING FUEL FROM WING TANKS SO CENTER TANK SHOULD HAVE BEEN EMPTY. ACFT GROUNDED. COULD NOT DUPLICATE. ACCOMPLISHED CENTER TANK BOOST PUMP AUTO SHUTOFF FUNCTIONAL TEST REF MM 28-22-00-720-805, TESTED NORMAL.
JUST AFTER TAKEOFF, RT BLEED TRIP OFF LIGHT ILLUMINATED ANTI ICE OFF NORMAL BLEED CONFIGURATION. OUT OF 2000 FT TRIP RESET WAS PUSHED AND BLEED TRIP OFF LIGHT EXTINGUISHED RT DUCT PRESSURE WAS RE-ESTABLISHED AND DUCT PRESSURE WAS ABOUT EQUAL. DURING CLIMB, RT PRESSURE BEGAN TO DROP LEVEL AT FL 360 LT 42 PSI RT 25 PSI. SPLIT REMAINED CONSTANT FOR ABOUT 2 HRS 20 MINUTES THEN RT PRESSURE INCREASED TO 38 PSI, LT 43 PSI. PRESSURE REMAINED AT THOSE VALUES FOR REST OF CRUISE FLIGHT. FOUND NR 2 ENGINE PRSOV LEAKING. REPLACED IAW AMM 36-11-04. ALSO, REPLACED PRECOOLER CONTROL VALVE IAW AM 36-12-02 AS A PRECAUTIONARY MEASURE. PERFORMED HIGH POWER RUN NO DEFECTS NOTED. OPS CHECK NORMAL. OK FOR SERVICE.
RT PACK LIGHT ILLUMINATES ON RECALL (EXTINGUISHES) RESETS WHEN MASTER CAUTION RESET. BITE CHECKED TEMP CONTROLLER REF 21 62 00 810 801."RAM AIR ACT" FAULT ON NR 2 CONTROLLER. ACCOMPLISHED FIM 21 62 TASK 836. REMOVED AND REPLACED RIGHT RAM AIR INLET ACTUATOR REF 21 51 21 000 801 AND 21 51 21 400 801.
NR 1 ENG LEFT IGNITION DOES NOT WORK. ACCOMPLISHED FIM TASK 74 21 00 810 806 F00 EEC BITE CHECK SHOWED NO FAULTS LOGGED. DURING FURTHER T/S FOUND NO AUDIBLE CONFIRMATION OF IGNITOR PLUGS IGNITING. REPLACED NR 1 ENGINE IGNITOR PLUGS REF T/C 78474000 SYSTEM OPS CHECKS NORMAL. GROUND VERIFICATION CHECKS NORMAL.
AFTER LANDING APU GEN READ 0 VOLTS/0 FREQ WOULD NOT GO ON LINE WITH APU OFF BUS LIGHT ILLUMINATED. ACCOMPLISHED APU BITE TEST REF FIM TASK 49 60 TASK 801 FOUND FAULT CODE 49 31171 LOGGED. REF FIM TASK 49 31 00 810 808 ACCOMPLISHED APU STARTING OPERATIONAL CHECK FAULT CODE FOUND TO BE INTERMITTENT FAULT CODE CLEARED WITH NO OTHER OCCURRENCES FOUND. GROUND VERIFICATION CHECKS NORMAL.
40 MIN INTO FLT AFTER ENTERING CLASS II NAV BUT PRIOR TO ETOPS AIRSPACE MADE POSITION REPORT NORMALLY ON HF1 RECEIVED SELCAL CHECK BUT COULD NOT RESPOND TO ATC. DISCOVERED THAT WE COULD NOT TRANSMIT ON HF OR VHF COMMS 1 OR 2 USING BOOM MIC OR HANDHELD MIC AT EITHER PILOT STATION. RECEVIED TRANSMISSIONS ON HF AND VHF AND FLIGHT INTERPHONE NORMALLY. AFTER 2 MINUTES ALL OPERATIONS RETURNED TO NORMAL FOR REMAINDER OF FLIGHT. FOUND NR 1 HF TO BE THE PROBLEM ON NR 1 HF AND NR 2 HF NR 1 HF SIDE. REPLACED NR 1 HF COUPLER. REF 23 11 61. PERFORMED OPS CK OF NR 1 HF PER 23 11 00. ON LEFT NR 1 HF AND RT SIDE NR 1 HF SYSTEM. VERIFIED NR 2 HF ON LEFT AND RT SIDE IS WORKING NML. REF 23 11 00.
RT ENG GEN "DRIVE" LIGHT NOT ON W/ ENG NOT TURNING BULB CHECKS OK. REPLACED NR 2 IDG WITH NEW REF: AMM 24 11 11. FIM 24 11 00 DETERMINED INTERNAL IDG FAULT SWITCH (DRIVE) DEFECTIVE. NR 2 IDG OPS CHECK GOOD REF: AMM TASK 24 11 00.
PERF SHOWS IN SCATCH PAD "PERF LIMITS UPLINK READY" NEAR CONSTANTLY WILL NOT AUTO LOAD PERF INFO MUST MANUALY LOAD PERF. CAPT CDU WILL NOT ALLOW SELECTION OF INFO FROM SCATCH PAD. FOUND LEFT FMC WITH MULTIPLE FAULTS. REPLACED FMC COMPUTER CROSSLOADED SOFTWARE RIGHT TO LEFT. INSTALLATION TEST GOOD REF AMM 34 61 02.
ON PREFLIGHT THE "AUTOFAIL" AND "ALTN" LIGHTS WERE ILLUMINATED. ABOVE FAULT DUE TO GROUND POWER INTERUPT CYCLED PRESS CONT C/B REF AMM 20 60 01 AUTOFAIL & ALTN LIGHTS WENT OUT. ACCOMPLISHED BITE OF THE DCPC`S REF FIM TASK 21 31 00 810 801 INTERMITTENT FAULT CLEARED OKAY FOR CONT USE.
CAPT AUTOPILOT AND FLIGHT DIRECTOR FAIL. SPEED AND MACH TRIM FAIL. AUTOTHROTTLES FAIL. ALL FAILURES OCCURED AT SAME TIME. RE-INSTALLED FCC "B" AND REPLACED FCC "A". DFCS LOGGED 22 11628 22 11356. COMPLIED WITH FIM 22 15 TASK 824 + 825. GROUND VERIFICATION SUCCEEFUL WITH FCC "A" REPLACEMENT. REF MM 22 11 33 BITE GRP #35 AND 49 HGS 34 36 0.
FMC DISAGREE LIGHT CAME ON AFTER ENGINE START. ACCOMPLISHED QRH PROCEDURE. OPS CHECK NORMAL.
RT ECS HIGH PRESSURE DOOR LATCH WEAR ON LWR CHORD. REMOVED DAMAGE AREA INSTALLED REPAIR STRAP & STRIKE PLATE.
AIRCRAFT REAR LEFT DOOR HARD TO CLOSE. LUBED L2 DOOR, OPS CHECKS OK.