N533US

Part: LIGHT — INOPERATIVE (EXTERIOR) · airframe 79,853 hrs · 34,452 cycles

EXTERIOR EMERGENCY LIGHTS ARE INOPERATIVE. R & R THE LIGHTS. OPS CHECKED GOOD.

Part: LIGHT — INOPERATIVE (EXTERIOR) · airframe 79,853 hrs · 34,452 cycles

R1 DOOR EXTERIOR EMERGENCY LIGHT INOPERATIVE. R & R THE LIGHT. OPS CHECKED GOOD.

Part: SKIN — DAMAGED (BS 411) · airframe 79,768 hrs · 34,409 cycles

LIGHTNING STRIKE DAMAGE TOP OF FUSELAGE, BS 411, 27 INCHES BELOW UPPER LAP JOINT RT SIDE. REPAIRED IAW E/C ERA 530817-14, REV ORIG.

Part: SKIN — DAMAGED (BS 382-399) · airframe 79,768 hrs · 34,409 cycles

LIGHTNING STRIKE DAMAGE TOP OF FUSELAGE BETWEEN BS 382 - 399 BETWEEN STRINGERS 6 AND 7, APPROXIMATELY 18 INCHES BELOW LAP SEAM, RT SIDE. REPAIRED IAW ERA 530817-14, REV ORIGINAL.

Part: SKIN — DAMAGED (BS 474) · airframe 79,768 hrs · 34,409 cycles

FUSELAGE SKIN BS 474, S6R, LIGHTNING STRIKE. REPAIRED IAW PRI 530843-14, REV 0 AND ERA 530843-14, REV ORIGINAL.

Part: SKIN — DAMAGED (BS 474) · airframe 79,767 hrs · 34,408 cycles

LIGHTNING STRIKE DAMAGE AT BS 474 AND S6R. DAMAGE REPAIRED IAW SECTION I OF ER/A 530843-14.

Part: SKIN — DAMAGED (BS 440) · airframe 79,768 hrs · 34,409 cycles

LIGHTNING STRIKE DAMAGE TOP OF FUSELAGE, BS 440 AFT OF SPLIT LINE, 19 INCHES BELOW LAP SEAM. REMOVED DAMAGED FASTENER IAW SRM 53-00-01, REPAIR 6, SECTION II AND DRILLED DAMAGE IAW SRM 53-00-01, REPAIR 6, SECTION I. PREFORMED HFEC SURFACE SCAN IAW NDTM PART 6 51-00-01. NO DEFECTS NOTED. INSTALLED FASTENERS AND RESTORED FINISH IAW SRM 53-00-01, REPAIR 6, SECTION I AND II.

Part: SKIN — DAMAGED (BS 399) · airframe 79,768 hrs · 34,409 cycles

LIGHTNING STRIKE DAMAGE TOP OF FUSELAGE BS 399, 22 INCHES BELOW LAP SEAM RT SIDE. REPAIRED IAW ERA 530817-14, REV ORIGINAL.

Part: SKIN — DAMAGED (BS 474) · airframe 79,767 hrs · 34,408 cycles

LIGHTING STRIKE DAMAGE TOP OF SURFACE BS 474, 18 INCHES BELOW LAP SEAM RT SIDE. REPAIRED IAW ERA 530843-14, REV ORIGINAL.

Part: SKIN — DAMAGED (BS 399-411) · airframe 79,768 hrs · 34,409 cycles

FUSELAGE SKIN, BS 399 - 411, S6-7R HAS LIGHTNING STRIKES. REPAIRED IAW PRI 530817-14 REV 0 AND1 AND ERA 530817-14, REV ORIGINAL.

Part: SKIN — DAMAGED (BS 399-411) · airframe 79,767 hrs · 34,408 cycles

LIGHTNING STRIKE DAMAGE BETWEEN BS 399-411 AND STRINGER 6-7R. DAMAGED AREAS CUT OUT AND DOUBLERS INSTALLED IAW SECTION I OF ER/A 530817-14.

Part: SKIN — DAMAGED (BS 399-411) · airframe 79,767 hrs · 34,408 cycles

LIGHTNING STRIKE DAMAGE BETWEEN BS 399-411 AND STRINGER 6-7R.

Part: WARNING LIGHT — ILLUMINATED (CABIN PRESSURE) · airframe 79,358 hrs · 34,152 cycles

DURING DESCENT PASSING 26000, RECEIVED A CABIN ALTITUDE WARNING ALSO CABIN ALTITUDE AUTO 2 EICAS. QRH FOLLOWED AND DESCENDED TO 10,000. BITE NR 2 CABIN PRESSURE CONTROLLER, FAULT NR 2 AC MOTOR. INSTALLED NEW OUTFLOW VALVE ACTUATOR IAW AMM 21-31. REPLACED SEALS ON LT PACK HEAT EXCHANGER. REPLACED CONDENSER DUE TO CRACKS. C/W SINGLE PACK CONFIDENCE CHECK IAW AMM 21-51.

Part: BOTTLE — NO TEST (R4 DOOR) · airframe 79,266 hrs · 34,096 cycles

EMERGENCY POWER RESERVOIR BOTTLE AT R4 DOOR FAILED CHECK IAW R/C 5211-2001. REPLACED RESERVOIR IAW MM 52-11-30.

Part: PLATE — MISSING (L1 DOOR) · airframe 79,004 hrs · 33,926 cycles

FOUND L1 DOOR STOP FITTING BEARING PLATE MISSING. INSTALLED BEARING PLATE.

Part: CONTROL ROD — DISCONNECTED (R1 DOOR) · airframe 78,982 hrs · 33,909 cycles

R1 DOOR WON'T OPEN. FOUND CONTROL ROD DISCONNECTED. REPLACED CONTROL ROD IAW AMM 52-40.

Part: IDG — FAILED (RIGHT) · airframe 78,092 hrs · 33,331 cycles

PERFORMED AN AIR TURN BACK APPROXIMATELY FOUR MINUTES AFTER TAKEOFF DUE TO A RT GENERATOR DRIVE ANNUNCIATED ON EICAS FOLLOWED BY A RT GENERATOR FAILURE AND RIGHT BUSS FAILURE WITH ELECTRICAL ODOR OF SMOKE DETECTED IN THE COCKPIT. NO ODORS OR SMOKE DETECTED FROM APU OR EITHER ENGINE AIR SYSTEMS. REPLACED RIGHT IDG AND AIR-OIL HEAT EXCHANGER. OPS AND LEAK CHECKED GOOD.

Part: THRESHOLD — CRACKED (FWD CARGO) · airframe 73,959 hrs · 30,791 cycles

FWD CARGO THRESHOLD CRACKED 12 INCHES FWD OF AFT EDGE CRACKS ARE APPROXIMATELY 3 3/16 AND 1 3/4 LONG. REMOVED EXISTING FWD CARGO COMPARTMENT THRESHOLD BULLNOSE. NEW THRESHOLD LOCATE. NEW THRESHOLD DRILLED AND INSTALLED.

Part: CREASE BEAM — DAMAGED (FUSELAGE) · airframe 2,561 hrs · 1,473 cycles

CREASE BEAM REPAIR. CURRENT ER/A REVISION IS 'A'. SECTION II INSP REQUIREMENT HAS BEEN ADDED. ACCOMPLISH SECTION II NO LATER THAN 36200 TOTAL A/C FLIGHT CYCLES. THE SECTION II INSPECTION IS PENDING A STAGE III DAMAGE TOLERANCE ANALYSIS. CONTACT ENGINEERING WHEN THE A/C REACH 33200 TOTAL FLIGHT CYCLES, SUCH THAT A STAGE III DAMAGE TOLERANCE ANALYSIS CAN BE INITIATED. ASSOCIATED ER/A 13-487261 ADDED FOR AC 5533.

Part: SKIN — GOUGED (ACCESS DOOR) · airframe 71,101 hrs · 28,579 cycles

DURING M-CHECK, FOUND ACCESS DOOR 119 BL HANDLE CUTOUT IS GOUGED. REPAIRED IAW ERA 488099-14, REV ORIGINAL.

Part: SKIN — CRACKED (LEFT ELEVATOR) · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK, FOUND DAMAGE ON LT ELEVATOR T/E CRACKED DUE TO IMPACT WITH A MANLIFT. REMOVED LT ELEVATOR IAW AMM 27-31-01-024-001 AND PERFORMED REPAIR IAW SRM 51-70-04, GENERAL PARAGRAPH 4D-4G PG 7-18, FIG 14, PG 48 AND REINSTALLED LT ELEVATOR AND PERFORMED OPS CHECK IAW AMM 27-31-01-024-001. OPS CHECKED GOOD.

Part: CREASE BEAM — CORRODED (BS 1630) · corrosion level 2 · airframe 70,100 hrs · 28,578 cycles

DURING MX CORROSION WAS FOUND COMMON TO THE FUSELAGE CREASE BEAM AT STA 1630, WL 208. THE CORRODED AREA OF THE CREASE BEAM WAS CUTOUT AND A REPAIR WAS INSTALLED IAW SECTION OF ER/A 13-487261-14. THE REPAIR IAW SECTION I IS STATICALLY APPROVED FOR 24 MONTHS AFTER 13DEC10 PENDING DTA. OBTAIN DTA APPROVAL OF THE SECT I REPAIR BY 13DEC12 OR REMOVE THE ACFT FROM REVENUE SERVICE. IF THIS L/P IS NOT REVISED BY 13OCT12, CONTACT LIAISON ENGINEERING.

Part: FLOOR SUPPORT — CORRODED (BS 345-378) · corrosion level 2 · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK FOUND MAIN CABIN FLOOR SUPPORT BL 0 CORRODED STA 345-378. CORROSION FOUND OUT OF LIMITS IAW SRM 53-00-51, PAGE 03. DETAIL III. R & R SUPPORT BEAM ON MAIN CABIN STA 324 TO 418 BL0 REINSTALLED 7EA CLIPS IAW SRM 51-40-02, PAGE 2-7.

Part: FIREWALL — CHAFED (NR 1 NACLLE) · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK FOUND NR1 PYLON NACELLE STA 105 VERTICAL FIRE WALL INBD AFT SIDE SKIN IS CHAFED. BLENDED OUT CHAFED AREA ON NR1 PYLON NACELLE STA 105 VERTICAL FIRE WALL AND FOUND OUT OF LIMITS IAW SRM 54-51-02, PAGE 103. REMOVED FASTENERS AND CUT OUT DAMAGE AREA AT NR1 PYLON NACELLE STA 105 VERTICAL FIRE WALL IAW SRM 54-51-02, REPAIR 1, FIG 201. FABRICATED REPAIR DOUBLER AND FILLER AND INSTALLED FILLER ON VERTICAL FIRE WALL ON NR1 PYLON IAW SRM 54-51-02.

Part: SKIN — CRACKED (NR 2 NACELLE) · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK FOUND NR2 PYLON OTBD AFT OF CTR T/R INSOLATOR ACCESS PANEL CUT OUT CRACKED. REMOVED OTBD T/R HINGE AND 1EA DOUBLER FROM NR2 PYLON OTBD IAW SRM 51-40-02, PAGE 240, CUT OUT THE CRACK DAMAGE IAW ERA 487267-14, REV 0, STEPS 5 FAB REPAIR DOUBLER IAW ERA 487267-14, REV O , INSTALLED OTBD T/R HINGE FITTING PN 311N3553-14 IAW ERA 487267-14 REV O, STEP 11.

Part: SKIN — DAMAGED (BS 1473 S29-30R) · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK, FOUND FUSELAGE SKIN LOWER AFT VHF ANTENNA MOUNT 2 HOLES IN SKIN TRIM OUT STA 1473, S-29R TO S-30R. SECTION I - ACCOMPLISHED DURING MX AT SAT DEC 2010 SECTION II-REPAIR APPROVAL LIMITED TO 75000. TOTAL ACFT CYCLES NOTE TO MON ER/A REVISION REQUIRED FOR SERVICE BEYOND 75000. TOTAL CYCLES ASSOCIATED ER/A 13-487270 ADDED FOR AC 5533 THE SECTION III IS APPROVED TO 75,000, TOTAL ACFT CYCLES, IF LOG PAGE IS NOT REVISED BY THIS TIME, CONTACT LIAISON ENGINEERING. REMOVED THE EXISTING ANTENNA SUPPORT STRUCTURE IN REF DWG SA5331-01087-3, CUT OUT THE SKIN IN REF DWG 01087-4, NOTE 3, FABRICATED 2EA EXTERNAL DOUBLERS FROM 2024T3 .063" IN REF SB757-53A0053. INSTALLED THE VHF ANTENNA SUPPORT STRUCTURE IN REF DWG SA 5331-01087 AND INSTALLED REPAIR DOUBLERS AND SKIN PLUG IN REF DWG SA5331-01087-4 NOTES 2, 5, 6 AND 7. ACCOMPLISHED ERA 487270-14, REV ORIGINAL.

Part: SUPPORT CHANNEL — CORRODED (FUSELAGE) · corrosion level 2 · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK FOUND SEAT TRACK SUPPORT CHANNEL CORRODED ON UPPER SURFACE AT STA 365, RBL 24. FOUND TO BE OUT OF LIMITS IAW SRM 53-10-15, PAGE 105. REMOVED SEAT TRACK SUPPORT CHANNEL, INSTALLED NEW SEAT TRACK SUPPORT CHANNEL IAW SRM 51-40-02, PAGE 7.

Part: FLOORBEAM — CORRODED (BS 377.7) · corrosion level 2 · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK, FOUND MAIN CABIN FLOORBEAM UPPER SURFACE CORRODED STA 377.7 LBL64-RBL 40. FOUND OUT OF LIMITS IAW SRM 53-00-51, PAGE 103, DETAIL IV. REMOVED CORRODED EXISTING FLOORBEAM REPAIR FROM LBL 64 TO BL 0 AND EXTEND CUT OUT ON FLOORBEAM STA 377 UPPER CAP FROM BL 0 TO RBL 45 IAW SRM 53-00-51. REPAIR 3, PAGE 201. FABRICATED REPLACEMENT CHORD, 2EA REPAIR ANGLES AND 2EA REPAIR STRAPS TO FLOORBEAM STA 377.7 LBL 64 TO RBL 45 PER NWA SRP B-757-A-53-01-07-801-663A-A PAGE 1 ANDSRM 53-00-51 REPAIR 3 PAGE 203. TREATED AND PRIMED AND INSTALLED REPLACEMENT CHORD, 2EA REPAIR ANGLES AND 2EA REPAIR STRAPS IAW SRM 53-00-51, REPAIR 3, PAGE 201.

Part: FLOORBEAM — CORRODED (BS 1661) · corrosion level 2 · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK FOUND MAIN CABIN FLOORBEAM UPPER SURFACE CORRODED STA 1661, LBL 5-RBL 24. REMOVED CORROSION FOUND TO BE OUT OF LIMITS FROM LBL 5 TO RBL 23 IAW SRM 53-00-51, PAGE 103, FIG 101, DETAIL V1. CUT OUT DAMAGE AREA AT STA1661 LBL 5 TO RBL 23 IN REF B757-2.

Part: FLOORBEAM — CORRODED (BS 1661) · corrosion level 2 · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK FOUND MAIN CABIN FLOORBEAM UPPER SURFACE CORRODED BS 1661, LBL 5 TO RBL 24. REMOVED CORROSION ON FLOORBEAM UPPER SURFACE FOUND TO BE OUT OF LIMITS. INSTALLED NEW CHORD, 2(EA) ANGLE. 2EA STRAP IAW SRM 53-00-51 REPAIR 3 FIG 201 PG 201-206 ON BS 1661 LBL 5 TO RBL 24.

Part: FLOOR SKIN — CORRODED (CABIN FLOOR) · corrosion level 2 · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK FOUND MAIN CABIN AFT DECK PLATE UPPER SURFACE CORRODED STA 1680-1720, BL0-BL54. REMOVED CORROSION FROM MAIN CABIN AFT DECK PLATE UPPER SURFACE SRM 53-00-51, PG 101-103. FOUND TO BE OUT OF LIMITS. FABRICATED, TREATED, PRIMED AND INSTALLED 1EA FILLER AND 1EA DOUBLER IAW SRM 53-60-51, FIG 201, REPAIR 2 PAGE 201 TO 205, SRM 51-20-01 PAGES 3&7.

Part: FLOORBEAM — CORRODED (BS 1661) · corrosion level 2 · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK FOUND MAIN CABIN FLOORBEAM UPPER SURFACE CORRODED BS 1661 LBL 5-RBL 24. REMOVED CORROSION ON FLOORBEAM UPPER SURFACE IAW SRM 53-00-51, FIG 201 REPAIR 3. FABRICATED & INSTALLED CHORD, ANGLE, STRAP IAW SRM 53-00-51, FIG 201, REPAIR 3.

Part: FLOOR PANEL — CORRODED (BS 1680-1720) · corrosion level 2 · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK FOUND MAIN CABIN AFT DECK PLATE UPPER SURFACE CORRODED. STA 1680-1720, BL 0-RBL 54. REMOVED CORROSION IAW SRM 53-00-51, PG 103, DETAIL III. ORIGINAL THICKNESS .071 IAW SRM 53-60-51, PG 7. MAIN CABIN AFT DECK PLATE UPPER SURFACE FOUND TO BE WITHIN LIMITS, EXCEPT STA 1712 TO 1715, BETWEEN RBL 22 TO RBL 50. AREA FOUND OUT LIMITS IAW SRM 53-00-51, PG 101. TREATED AND PRIMED AREAS WITHIN LIMITS, CUT OUT DAMAGED AREA ON STA 1712 TO 1715, BETWEEN RBL 22 TO RBL 50 IAW SRM 53-60-51, FIG 201, REPAIR 2, PGS 201 TO 205, FABRICATED FILLER AND DOUBLER, TREATED AND PRIMED, IN REF TO SRM 53-60-51, PG 201, REPAIR 2, PGS 201 TO 205, AND SRM 51-20-01, PGS 3, INSTALLED DOUBLER AND FILLER ON MAIN CABIN AFT DECK PLATE UPPER SURFACE STA 1710 TO 1718, BETWEEN RBL 17.5 TO RBL53 IAW SRM 53-60-51, FIG 201, REPAIR 2, PGS 201 TO 205.

Part: FLOORBEAM — CORRODED (BS 345) · corrosion level 2 · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK FOUND MAIN CABIN FLOORBEAM CORRODED ON UPPER SURFACE OF REPAIR CHORD EXTENDING ONTO ORIGINAL CHORD ON BOTH ENDS, STA 345, RBL 36 TO LBL 18. REMOVED CORRODED EXISTING REPAIR FLOORBEAM STA 345 CUT OUT FLOORBEAM FROM LBL 53 TO RBL 36, FABRICATED REPLACEMENT CHORD, LOCATED & DRILLED, TREATED & PRIMED AND INSTALLED REPLACEMENT PARTS AT STA 345, LBL 53 TO RBL 36 IN REF TO SRM 53-00-51, REP 3, FIG 201, PG 201 TO 206 & B757-A-53-01-07 -801-663A-A.

Part: SEAT TRACK — GOUGED (BS 1502-1504) · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK, FOUND MAIN CABIN SEAT TRACK GOUGED BEYOND ALLOWABLE LIMITS, BETWEEN STA 1502 TO STA 1504, RT OTBD SEAT TRACK. R & R 1EA SEAT TRACK AND 1EA SPLICE FROM STA 1490 TO 1540, IAW SRM 53-00-52, REPAIR NR3, FIG 201, ON RBL 45.

Part: FLOORBEAM — CORRODED (BS 365) · corrosion level 2 · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK FOUND RT NLG W/W TUNNEL, STA 365, LBL 24 TO RBL 24, FLOORBEAM HAS CORROSION. FABRICATED REPLACEMENT CHORD, 02 EA REPAIR ANGLES, AND 02 EA REPAIR STRAPS, TO FLOORBEAM 70 IAW SRM 53-00-51, REPAIR 3, PAGE 203, FIG 201. TREATED AND PRIMED REPLACEMENT CHORD, 02 EA ANGLES, AND 02 EA STRAPS, TO FLOORBEAM REPAIR IAW SRM 53-00-51, PAGE 201, FIG 201, AND REPAIR 3. INSTALLED REPLACEMENT CHORD, 02 EA ANGLES, AND 02 EA STRAPS ON FLOORBEAM IAW SRM 53-00-51, PAGE 201, FIG 201, REPAIR 3. REINSTALLED PARTS (DOUBLER AND FILLER) ON STA 365.5, RBL 45, IN REF TO SRM 51-40-02, PAGE 4 PARAGRAPH 7.

Part: SEAT TRACK — GOUGED (BS 1468-1470) · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK FOUND LT OTBD SEAT TRACK BETWEEN STA 1468 TO 1470 GOUGED BEYOND ALLOWABLE LIMITS. R & R SEAT TRACK SECTION SPLICE, AT STA 1450 TO 1540, REF SRM 53-00-52, REPAIR 3, LBL 45.

Part: SEAT TRACK — GOUGED (BS 1468-1470) · airframe 70,100 hrs · 28,578 cycles

DURING M-CHECK, FOUND LT OTBD SEAT TRACK BETWEEN STA 1468 TO 1470, GOUGED BEYOND ALLOWABLE LIMITS. R & R SEAT TRACK SECTION SPLICE, AT STA 1450 TO 1540, REF SRM 53-00-52, REPAIR 3, LBL 45.

Part: WIRE — BROKEN (EMERGENCY LIGHTS) · airframe 69,292 hrs · 28,310 cycles

FIRST CLASS FLOOR ESCAPE PATH EMERGENCY LIGHTS WOULD NOT TEST. FOUND WIRES W3532-9006-18 AND W3532-9007-18 BROKEN AT RACEWAY 6" FORWARD OF FORWARD RT SEAT ROW, FORWARD LEG. REPAIRED WIRES IAW SWPM 20-30-12. LIGHTS OPERATED NORMAL.

Part: LAMP — INOPERATIVE (EMERGENCY LIGHT) · airframe 69,233 hrs · 28,291 cycles

EMERGENCY EXIT SIGNS ABOVE 4L AND 4R HAVE MULTIPLE LAMPS INOPERATIVE. RELAMPED SIGNS. OPS CHECK GOOD.

Part: LAMP — INOPERATIVE (EMERGENCY LIGHT) · airframe 65,375 hrs · 26,859 cycles

DURING OVERNIGHT MAINTENANCE FOUND THE EMERGENCY ESCAPE PATH LIGHTING INOPERATIVE FROM ROW 33 TO ROW 39, THE SECTION AFT OF DOOR 3. MAINTENANCE RELAMPED THE EFFECTED LIGHTS AND ALL OPERATIONS CHECKED GOOD. (S)

Part: SKIN — DENTED (BS 630 S24-25R) · airframe 64,096 hrs · 26,679 cycles

DURING "L" CHECK, FOUND DENT AND GOUGE IN FUSELAGE SKIN AT BS 630 BETWEEN S24R TO S25R. REPAIRED PER EA 55-212820 SECTION I, SECTION II REQUIRES FOLLOW UP INSPECTIONS BEGINNING NO LATER THAN 37,500 TOTAL AIRCRAFT FLIGHT CYCLES. SECTION III REQUIRES REPEAT INSPECTIONS AT 6000 CYCLES INTERVALS AFTER SECTION II ACCOMPLISHMENT.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 62,244 hrs · 25,681 cycles

EMERGENCY ESCAPE LIGHTS AT 4B AND 13D INOP. REPLACED EMERGENCY LIGHT POWER SUPPLY AND BATTERY AT STA 369, CHECKS OK.

Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · corrosion level 2 · airframe 52,303 hrs · 21,709 cycles

DURING H-CHECK FOUND CORROSION IN FLOOR SUPPORT AT BS 365 RBL 46. REPAIRED PER EA 55-199272.

Part: POWER SUPPLY — INOPERATIVE (CABIN) · airframe 40,270 hrs · 16,936 cycles

AFT CABIN EMERGENCY FLOOR LIGHTS INOPERATIVE FROM COCKPIT AND DOOR 1L TEST SWITCH. MAINTENANCE REPLACED THE M9004 POWER SUPPLY AND BATTERY. OPERATIONAL CHECK OK.

Part: SMOKE DETECTOR — FAILED (E/E BAY)

DURING CLIMB, THE SMOKE LIGHT CAME ON FOLLOWED BY EQUIPMENT OVERHEAT FIVE MINUTES LATER. DECISION WAS MADE TO RETURN WHEN THE FLIGHT INSTRUMENTS WENT DIM. EQUIPMENT OVERHEAT LIGHT WENT OUT WHEN ALTERNATE SYSTEM WAS USED. THE AIRCRAFT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED THE NR 1 AND NR 2 FORWARD EQUIPMENT SMOKE DETECTORS. ALL SYSTEMS CHECKED NORMAL.

Part: APU — FAILED (AFT FUSELAGE)

THE APU FAILED DURING CRUISE AND RESTART ATTEMPTS WERE UNSUCCESSFUL. THE RIGHT IDG WAS ON MEL, SO THE AIRCRAFT DIVERTED TO ATL. REPLACED THE RIGHT IDG, PERFORMED BITE ON APU, NO FAULTS WERE DETECTED. APU OPERATIONAL CHECK WAS NORMAL.

Part: LONGERON — CORRODED (FS 1510)

DURING PERIODIC CHECK, THE AFT CARGO FLOOR SUPPORTS AT FS 1510, RBL 3, LBL 3, AND LBL 7 WERE FOUND CORRODED. REMOVED CORROSION AND INSTALLED REPAIR DOUBLER PER SRM 53-60-53, AND NWA EA 55-93708.