N3301

Part: SKIN — CRACKED (FUSELAGE) · airframe 50,250 hrs · 34,588 cycles

THE FUSELAGE SKIN WAS FOUND WITH A 3 INCH CRACK JUST ABOVE STRINGER 24R AND A 2 INCH CRACK JUST BELOW STRINGER 24R. THE CRACKS RAN ALONG THE BONDED WAFFLE DOUBLER MILL LINE. THERE WAS AN EXISTING EXTERNAL DOUBLER REPAIR IN THE AREA FOR SIMILAR PREVIOUS CRACKING. THE AREA OF SKIN BETWEEN FS 720D & 747 AND BETWEEN STRINGERS 20R & 25R WAS CUT TO REMOVE DAMAGE AND DOUBLER. A NEW SECTION OF SKIN WAS SPLICED.

Part: HEAT EXCHANGER — CRACKED (RT) · airframe 50,183 hrs · 34,554 cycles

RIGHT WING BODY OVERHEAT LIGHT CAME ON DURING CLIMB RAN PROCEDURE BUT LEFT PACK WOULD NOT HOLD CABIN ALTITUDE CABIN UNDER CONTROL AT 18000 MAX CABIN ALT 9500. FOUND FIBERGLASS PLENUM AT HEAT EXCHANGER BLOWN OUT ON LOWER SEAM ALSO FOUND BOTH HEAT EXCHANGERS CRACKED AT OUTBOARD FLANGE REPLACED BOTH HEAT EXCHANGERS

Part: WEDGE — DELAMINATED (RT WING) · airframe 50,085 hrs · 34,498 cycles

RT INBOARD AFT FLAP TE WEDGE DISBONDED. REPAIRED PER ER/A 422820-14

Part: STRUCTURE — DEBONDED (RT WING TE FLAP) · airframe 49,959 hrs · 34,436 cycles

INBOARD FORE FLAP DELAMINATED. REPAIRED PER ER/A 422922-14.

Part: SKIN — DENTED (FS 280, S-21R) · airframe 49,528 hrs · 34,165 cycles

FUSELAGE / SKIN / FS 277-290.5 / STRG. 20R-22R : GROUND DAMAGE CUTOUT REPAIR THE FUSELAGE SKIN WAS DENTED AND GOUGED BY GROUND EQUIPMENT JUST AFT OF THE LAVATORY SERVICE DOOR BETWEEN FS 277 & 290.5 AND BETWEEN STRINGERS 20R & 22R. THE DAMAGE WAS REMOVED WITH A 14.5" X 7" CUTOUT AND REPAIRED WITH TWO EXTERNAL ALUMINUM REPAIR DOUBLERS PER ER/A 384463-14, REV B.

Part: LIGHT — INOPERATIVE (CABIN) · airframe 48,690 hrs · 33,642 cycles

EMERGENCY EXIT LIGHT AT SEAT 10 DEF INOP. RELAMPED SAME OPS CK GOOD

Part: SKIN — DELAMINATED (SPOILER) · airframe 48,603 hrs · 33,586 cycles

WING SPOILERS WAS FOUND WITH EXCESSIVE DELAMINATION. REPAIR PER ER/A 417560-14 AND NORDAM EWO E0038848.

Part: SKIN — CRACKED (STA727E+15 S22L) · airframe 48,258 hrs · 33,365 cycles

DURING INSPECTION PER OPN 57512 SKIN CRACK WAS FOUND AT STATION 727E+15 AND STRINGER 23L. CORRECTIVE ACTION: REPAIRED PER ER/A 383585-14.

Part: SKIN — CRACKED (STA 727D+15 S22R) · airframe 48,258 hrs · 33,365 cycles

DURING INSPECTION PER OPN 57512 CRACK WAS FOUND IN THE SKIN AT STATION 727D+15 AND STR-22R. CORRECTIVE ACTION: REPAIRED PER ER/A 383586-14.

Part: HYDRAULIC LINE — RUPTURED (HYD SYSTEM) · airframe 48,231 hrs · 33,350 cycles

LOSS OF B-SYSTEM PRESSURE IN FLIGHT. REPLACED B-PUMP HYD SUPPLY LINE IN RT WHEEL WELL . ALSO REPLACED NR 2 ENGINE HYD PUMP AND CASE DRAIN FILTER SYSTEM, OPS AND LEAKS CHECKS NORMAL.

Part: SKIN — DELAMINATED (SPOILER) · airframe 47,503 hrs · 32,898 cycles

OUTBOARD SPOILER UPPER SKIN WAS FOUND DELAMINATED. REPAIR PER ER/A 411175-14 AND NORDAM EWO E0037508 REV I/R.

Part: WIRE — DISCONNECTED (CABIN) · airframe 47,503 hrs · 32,898 cycles

EMERGENCY EXIT LIGHT ON SEAT 12D INOP. FOUND WIRES PULLED FROM CONNECTOR. REWIRED CONNECTOR, LIGHT OPNS NORMAL.

Part: ACTUATOR — LEAKING (RT MLG WW) · airframe 47,317 hrs · 32,793 cycles

NR 1 ENGINE LOW PRESSURE HYDRAULIC (A) SYSTEM LIGHT ILLUMINATED WITH ASSOCIATED A SYSTEM QUANTITY DECREASED TO ZERO. FOLLOWED POM PROCEDURE NO OTHER INDICATION. MADE UNEVENTFUL LANDING. REPLACED O-RING AND FITTING ON A SYSTEM AILERON AUTOPILOT CONTROL ACTUATOR. LEAK CHECK OK. ALSO REPLACED CASE DRAIN FILTERS AND PERFORMED LEAK CHECK.

Part: POWER SUPPLY — INOPERATIVE (AFT CABIN) · airframe 47,194 hrs · 32,716 cycles

L2 DOOR AND AFT AISLE EMERGENCY LIGHTS INOPERATIVE. REPLACED POWER SUPPLY.

Part: WEB — CRACKED (KEEL) · airframe 47,042 hrs · 32,624 cycles

THE KEEL BEAM LOWER SKIN PANEL WAS FOUND CRACKED IN SEVERAL PLACES_BETWEEN FS 661 AND FS 721. THE PANEL WAS REPLACED PER S/B 737-53-1104. THE DAMAGE WAS FOUND AT HMV.

Part: KEELBEAM — CRACKED (FUSELAGE) · airframe 47,042 hrs · 32,624 cycles

CORROSION WAS FOUND ON THE LOWER KEEL CHORD AT FS 727 AND STR 27R. ADDITIONALLY, SEVERAL WEAR LOCATIONS WERE FOUND BETWEEN FS 727 AND FS 715 AND A CRACK WAS FOUND ON THE AFT END OF THE PART AT FS 727A. THE CORROSION WAS BLENDED AND THE CRACK WAS CUT OUT AND TWO REPAIR ANGLES WERE INSTALLED. THE DAMAGE WAS FOUND AT HMV.

Part: DOOR FRAME — CRACKED (CARGO DOOR) · airframe 47,042 hrs · 32,624 cycles

FWD CARGO DOOR ARRIVED IN THE SHOP DUE TO CRACKING FOUND IN THE LOWER FWD AND AFT CORNER FRAMES AS WELL AS THE FWD AND AFT SECTIONS OF THE LWD STOP BEAM. REPAIR PER ER/A 410793-14AD.

Part: SUPPORT FITTING — DAMAGED (ENGINE MOUNT) · airframe 47,042 hrs · 32,624 cycles

FWD ENGINE MOUNT SUPPORT FITTING WAS FOUND WITH OVERSIZED MOUNT HOLES. REPAIR PER ER/A 410877-14AD.

Part: BEAM — CORRODED (NR1 & 2 PYLON) · airframe 47,042 hrs · 32,624 cycles

CORROSION WAS FOUND ON THE CROWN BEAM LUG BORES OF THE NR 1 AND NR 2 PYLONS. THE BORES WERE OVERSIZED AND REPAIR BUSHINGS INSTALLED. THE DAMAGE WAS FOUND DURING INSPECTION AT HMV.

Part: SUPPORT FITTING — DAMAGED (ENGINE MOUNT) · airframe 47,042 hrs · 32,624 cycles

FWD ENGINE MOUNT SUPPORT FITTING WAS FOUND WITH OVERSIZED MOUNT HOLES. REPAIR PER ER/A 410878-14AD.

Part: TIRE — SEPARATED (LT MLG) · airframe 46,324 hrs · 32,159 cycles

NR 1 MAIN TIRE TREAD SEPARATED FROM TIRE ON TAKE OFF. DAMAGING LEFT I/B FLAPS AND LEFT GEAR DOOR. CA REPLACED TIRE, GEAR DOOR AND REPAIRED FLAP DAMAGE.

Part: PIN — BURNED (CONNECTOR) · airframe 45,731 hrs · 31,764 cycles

ON DESCENT DFW THE APU DET INOP LIGHT ON FIRE PANEL ILLUM. FOLLOWED POM PROCEDURE. APU AND APU BLEEDS WERE OFF AT THE TIME. ON FINAL THE APU FIRE WARN ILLUM. FOLLOWED POM PROCEDURE AND DISCHARGE FIRE BOTTLE. APU FIRE WARN REMAINED ILLUM FOR 3-5 MINUTES. EXTINGUISHED ON TAXI IN. APU DET INOP LIGHT WENT OUT ON TAXI IN. FOUND CONNECTOR D594 PINS BURNT. REPLACED SAME. REPLACED APU FIRE BOTTLE. OP CKS GOOD.

Part: ATTACH FITTING — CORRODED (FUSELAGE) · airframe 45,474 hrs · 31,588 cycles

THE RT MLG SIDE STRUT SUPPORT FITTING AT FS 685 WAS FOUND WITH CORROSION IN THE BORE AND FACES OF THE WL 188.5 LUG. THE CORROSION WAS REMOVED BY OVERSIZING THE LUG BORE AND MACHINING THE LUG FACES. AN ALUMINUM REPAIR BUSHING AND NEW BEARINGS WERE INSTALLED TO CORRECT THE CONDITION PER ER/A 380714-14, REV A.

Part: BULKHEAD — CRACKED (FUSELAGE) · airframe 45,331 hrs · 31,496 cycles

BS 178 BULKHEAD FLOOR SUPPORT STRUCTURE WEB CRACKED AT WL 207 AND LBL 25. ER/A 380305-14AD ORIGINAL ISSUE

Part: FRAME — CRACKED (BULKHEAD) · airframe 45,331 hrs · 31,496 cycles

THE LT AND RT SIDE CHORDS OF THE FS 178 BULKHEAD WERE FOUND CRACKED NEAR WL 207. THE CRACKS ARE LESS THAN 3 INCHES IN LENGTH.THE CRACKS WERE STOP DRILLED AND REPAIRED WITH A TEMPORARY ANGLE REPAIR PER B737-300 SRM 53-10-08, FIG. 208 AND ER/A 380283-14AD.

Part: SKIN — CRACKED (FUSELAGE) · airframe 44,241 hrs · 30,784 cycles

A SMALL CRACK WAS FOUND IN THE LOWER AFT CORNER OF THE L1 DOOR CUTOUT (FS 348, S-16L). THE CRACK WAS IN THE OUTER SKIN ONLY AND WAS REMOVED WITH A 1 X .5 INCH CUTOUT. THE CORNER WAS REPAIRED WITH AN EXTERNAL ALUMINUM DOUBLER AND TRIPLER PER ER/A 378991-14, REV A.

Part: WIRE — LOOSE (CABIN)

TRACK LIGHT AT SEAT 1-C INOP. FOUND WIRE UNHOOKED UNDER SEAT, OPS CK OK NOW.

Part: LINE — PUNCTURED (B-HYD SYST)

EN ROUTE EXPERIENCED TOTAL HYD SYS-B FAILURE CONTACTED ATL. MTC AND DISPATCH ADVISED LANDING IN LAS. T/S B-HYD SYS FOUND PIN HOLE IN FLEX HOSE FROM PUMP TO PRESS MODULE. INSTALLED APPROVED INTERIM HYD HOSE.

Part: SKIN — DENTED (CARGO DOORWAY)

FUSELAGE SKIN BELOW C1 DOOR CUTOUT WAS FOUND DENTED AND CREASED IN TWO PLACES. THE DAMAGE IS BETWEEN S26R AND S27R. REPAIRED PER ERA 331629-14.

Part: BULKHEAD WEB — CORROEDED (BS 1016)

AFT PRESSURE BLKHD AT FS 1016 WAS FOUND CORRODED AND CRACKED AT APPROX BL 0.0. THE CORROSION INCLUDED SURFACES 0 THE DOME WEB (GORE) AND BOTH THE LT AND RT 'C' CHANNEL STIFFENERS. AN ACCESS HOLE WAS CUT INTO THE FUSESLAGE SKIN TO FACILITATE THE GORE REPAIR. REPAIRED PER ERA331614-14 .

Part: KEEL BEAM — CORRODED (BS 500)

S28L KEEL BEAM WAS CORRODED AT FS 500D THRU FS 520. THE CORROSION REQUIRED CUTTING AND REMOVING A SECTION FROM FS 500D+10 FWD TO FS 500C+10. REPAIRED PER ERA 331606-14 .

Part: SKIN — WORN (BS 870)

THE FUSE SKIN WAS REPORTED TO BE WORN FROM BS 860 TO BS 885 TO A MAX DEPTH OF 0.013. REPAIRED PER ERA 331634-14.

Part: UPLOCK TARGET — LOOSE (NLG)

ON TAKEOFF, NOSE GEAR INDICATOR REMAINED RED ON RETRACTION. FOUND TARGET TABS OUT OF POSITION - REPAIRED.

Part: LIGHT — INOPERATIVE (CABIN)

2ND EMERGENCY TRACK LIGHT INOP IN Y/C. RELAMPED OPS CKS NML.

Part: TARGET — RUSTED (NLG)

NOSE GEAR DOWN AND LOCKED LIGHT WOULD NOT IND GREEN ON EXT OF GEAR. FOUND LOCK SENSOR TARGET BENT UP ABOVE SENSOR. REPLACED RUSTED SPRING RETAINER BOLTS, PERFORMED NLG RETRACTION AND GEAR OPS NORMAL.

Part: NOSE COWL — DENTED (NR 1 ENGINE)

DURING SHOP INSPECTION, NR 1 ENGINE NOSE COWL WAS FOUND WITH THE LEADING EDGE LIP DENTED AT THE 9 O'CLOCK POSITION. REPAIRED PER SRM 54-10-01.

Part: NOSE COWL — DENTED (NR 1 ENGINE)

FOUND DURING LETTER CHECK, DENT INSIDE NOSE COWL, CUT OUT DAMAGED SKIN AND CORE INJECTED POTTING COMPOUND AND CURED PER SRM 54-10-01.

Part: DETECTOR — FAULTY (NR2 ENGINE)

DURING APPROACH HAD NR 2 ENGINE OVERHEAT/FIRE INDICATION NR 2 WAS SHUT DOWN, BOTTLE DISCHARGED. NO EVIDENCE OF FIRE WAS FOUND. SUBSEQUENT TROUBLESOOTING REPLACED LOOP DETECTOR.