N10248

Part: ROD — FAILED (NR 2 COWLING) · airframe 9,308 hrs · 51,664 cycles

UPON LANDING THE NR 2 ENGINE COWLING WAS FOUND UNSECURED & DAMAGED. INSPECTION OF THE NR 2 ENGINE COWLING REVEALED THE COWLING ROD ASSEMBLY HAD FAILED. AFTER FURTHER INSPECTION THE NR 1 ENGINE COWL & SWASH PLATE ALSO HAD DAMAGE DUE TO THE UNSECURED NR 2 ENGINE COWLING.

Part: LINE — LEAKING (A-HYD SYST)

THE A-HYDRAULIC SYSTEM WAS LOST WHILE EN ROUTE. THE A-SYSTEM PUMPS WERE TURNED OFF AND THE AIRCRAFT LANDED AT EWR WITHOUT INCIDENT. MAINTENANCE FOUND THE HYDRAULIC LINE AT A-HYDRAULIC SYSTEM MODULE LEAKING. THE HYDRAULIC LINE WAS REMOVED AND REPLACED. THE HYDRAULIC SYSTEM WAS SERVICED TO FULL. LEAK AND OPERATIONAL CHECKS WERE GOOD.

Part: HYD LINE — LEAKING (LT MLG WW)

AFTER 1 HOUR OF FLIGHT, A-SYSTEM HYDRAULIC LOW PRESSURE LIGHT FLICKERED. FOUND HYD LINE LEAKING IN LEFT GEAR AREA. INSTALLED FLEX LINE REPAIR PER GMM 10-799-78.

Part: BATTERY PACK — DISCHARGED (CABIN)

INSPECTION FOUND EMERGENCY LIGHTS INOPERATIVE FROM ROW 4 FORWARD. THE BATTERY PACK WAS REMOVED AND REPLACED.

Part: CONNECTOR — LOOSE (CABIN)

INSPECTION FOUND LT OVERWING EMERGENCY EXIT LIGHT INOPERATIVE. MAINTENANCE FOUND PIN HAD SLID OUT OF CANNON PLUG INSIDE OVERWING BODY FAIRING. THE PIN WAS REINSTALLED AND OPERATION OF EXIT LIGHT CHECKED GOOD.

Part: DOUBLER — CORRODED (BS 259.5)

STATION 259.5 AT STRINGER 27L BONDED DOUBLER CORRODED. INSTALLED BONDED DOUBLER IN ACCORDANCE WITH EC/RA 5330-02549 AND DRWG DHCSK 248-084.

Part: SKIN — CRACKED (LT HORIZ STAB)

LEFT HORIZONTAL STABILIZER LOWER SKIN CRACKED. CUT OUT DAMAGED AREA. FABRICATED AND INSTALLED REPAIR DOUBLER AND FILLER IN ACCORDANCE WITH SRM 55-10-4 FIG 4 AND 55-10-3 FIG 829.

Part: BULKHEAD FRAME — CORRODED (AFT PRESS BLKHD)

CORROSION ON FRAME 1016 SURFACE STG 29L AND 29R AT BOTTOM OF AFT PRESSURE BULKHEAD. REMOVED DAMAGED AREA. INSTALLED PART IN ACCORDANCE WITH SRM 51-10-1 AND DRWG DHCSK 248-024.

Part: SKIN — CORRODED (BS 210-260)

INSPECTION FOUND LT FUSELAGE SKIN CORRODED AT STA 210.3 TO 259.9. THE SKIN WAS REPLACED IAW SRM 51-30-2.

Part: SKIN — CRACKED (HORIZ. STAB.)

LEFT HORIZONTAL STABILIZER LEADING EDGE DENTED AND CRACKED. CUT OUT DAMAGED AREA. FABRICATED FILLER AND DOUBLR AND INSTALLED IN ACCORDANCE WITH SRM 55-10-03 AND 51-30-2.

Part: SEAT TRACK — GOUGED (BS 742B)

SEAT TRACK STA 742B AT LBL24 UPPER LIP GOUGED. REMOVED AND REPLACED DAMAGED SECTION OF SEAT TRACK IN ACCORDANCE WITH SRM 51-10-6, 51-30-2, AND 53-10-5.

Part: T CORD — CORRODED (BS 340)

'T' CHORD CORRODED AT STATION 340 STG 23R. REMOVED AND REPLACED CORRODED SECTION OF CHORD IN ACCORDANCE WITH SRM 51-30-2 AND 53-10-2.

Part: SKIN — CRACKED (BS 727)

FUSELAGE SKIN HAS 2 CRACK AT STATION 727A AND STRINGER 17L. REMOVED DAMAGED AREA OF SKIN. FABRICATED AND INSTALLED DOUBLER AND FILLER IN ACCORDANCE WITH SRM 53-30-3 FIG 25.

Part: TRACK — GOUGED (BS 767)

NUMBER 4 SEAT TRACK GOUGED AFT OF FRAME STATION 767. REMOVED DAMAGED SEAT TRACK. FABRICATED AND INSTALLED NEW SEAT TRACK IN ACCORDANCE WITH SRM 51-30-2, 53-10-2, 53-10-5, AND 51-10-6.

Part: FRAME — CRACKED (E/E DOORWAY)

E/E DOOR FRAME CENTER U CHANNEL CRACKED IN 2 PLACES. REPAIRED CRACKED DOOR FRAME IN ACCORDANCE WITH SRM 51-40-6 AND 51-10-6.

Part: SEAT TRACK — GOUGED (BS 767)

NUMBER 4 SEAT TRACK GOUGED AFT OF FRAME STATION 767. REMOVED AND REPLACED DAMAGED SECTION OF SEAT TRACK IN ACCORDANCE WITH SRM 51-30-2, 53-10-2, 53-10-5, AND 51-10-6.

Part: SKIN — CORRODED (BS 450)

FORWARD FUSELAGE FS 450, STA 26L SKIN BULGING. REMOVED DAMAGED AREA OF SKIN, FABRICATED AND INSTALLED REPAIR IN ACCORDANCE WITH SRM 57-10-6 AND 53-30-3.

Part: CHORD — CORRODED (BS 340)

INSPECTION FOUND T-CHORD CORRODED AT STA 340, STRINGER 23R. THE CHORD WAS REPLACED IAW SRM 51-30-2 AND 53-10-2.

Part: CHORD — CORRODED (BS 351)

INSPECTION FOUND T-CHORD CORRODED AT STA 351, RBL 16. THE CHORD WAS REPAIRED IAW SRM 51-10-6 AND 53-10-1.

Part: SKIN — DENTED (BS 380-400)

INSPECTION FOUND FORWARD FUSELAGE SKIN DENTED FIVE INCHES BELOW S17L AT STA 380 TO 400. THE DENTED AREA WAS CUT OUT AND A DOUBLER WAS INSTALLED IAW SRM 51-10-2 AND 53-30-3.

Part: SEAT TRACK — GOUGED (BS 727)

NUMBER 4 SEAT TRACK GOUGED AT FS 727. REMOVED DAMAGED SEAT TRACK. FABRICATED AND INSTALLED SEAT TRACK IN ACCORDANCE WITH SRM 53-10-5 AND BAC 1520-1342.

Part: SEAT TRACK — GOUGED (BS 727)

SEAT TRACK GOUGED AT FS 727 TO 731A AT LBL24. REMOVED AND REPLACED DAMAGED SECTION OF SEAT TRACK IN ACCORDANCE WITH SRM 53-10-5.

Part: POWER CONTL UNIT — INOPERATIVE (AILERON)

THE AIRCRAFT HAD A BRIEF HISTORY OF STIFF AILERONS. MAINTENANCE FOUND THE B-SYSTEM AILERON POWER CONTROL UNIT AT FAULT. THE AILERON PCU WAS REMOVED AND REPLACED IAW MM 27-11-71, PAGE 401. AN ADJUSTMENT/TEST WAS PERFORMED ON THE AILERON PCU IAW MM 27-11-71, PAGE 501 AND OPERATION CHECKED NORMAL.

Part: CIRCUIT BREAKER — TRIPPED (LANDING GEAR)

THE LANDING GEAR COULD NOT BE RETRACTED AFTER TAKEOFF. THE GEAR HANDLE WOULD NOT GO PAST THE OFF POSITION. QRH PROCEDURES WERE COMPLIED WITH AND THE AIRCRAFT WAS RETURNED WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE LEVER LATCH AND PRESS WARNING CIRCUIT BREAKER ON P6 PANEL POPPED. THE CIRCUIT BREAKER WAS RESET. THE GEAR WAS PINNED AND WHEN THE R/H MLG GROUND SENSE CABLE WAS ACTUATED TO FLIGHT MODE THE HANDLE RAISED WITHOUT OVERRIDE AND NO CIRCUIT BREAKERS POPPED. OPERATIONAL CHECKS WERE GOOD IAW MM 32-31-21, PAGE 101. THE FAILURE COULD NOT BE DUPLICATED.

Part: WHEEL HALF — DETACHED (RT MLG)

WHILE REPLACING THE NR 4 MLG TIRE/WHEEL ASSEMBLY DUE TO TIRE WEAR, THE INNER WHEEL ASSEMBLY HUB WAS FOUND DETACHED FROM WHEEL HALF. THE NR 4 TIRE/WHEEL ASSEMBLY WAS REMOVED AND REPLACED. IN ADDITION, THE NR 3 MLG TIRE/WHEEL ASSEMBLY WAS REMOVED AND REPLACED AS A PRECAUTIONARY MEASURE.

Part: FUEL PUMP — FAILED (NR 1 ENGINE)

THE NR 1 ENGINE SURGED AND ROLLED BACK TO APPROXIMATELY 1.6 EPR AND 85 PERCENT ON TAKEOFF AT ROTATION. THE ENGINE WOULD NOT RESPOND TO THROTTLE MOVEMENTS. THE AIRCRAFT WAS RETURNED TO EWR WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NR 1 ENGINE FUEL CONTROL UNIT, FUEL PUMP AND FUEL HEATER AND LEAK CHECKS WERE GOOD. AN ENGINE POWER ASSURANCE RUN WAS PERFORMED IAW MM 71-09-226, PAGE 209 AND ENGINE OPERATION CHECKED GOOD.

Part: T1 BLADE — FRACTURED (NR 1 ENGINE)

THE NR 1 ENGINE ROLLED BACK TO 1.4 EPR AND AIRCRAFT VIBRATION WAS FELT AFTER GEAR RETRACTION. THE NR 1 ENGINE WAS SHUT DOWN AND THE AIRCRAFT WAS RETURNED TO CAE WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE NR 1 ENGINE DAMAGED. THE NR 1 ENGINE WAS REMOVED AND REPLACED. THE SDR WILL REMAIN OPEN FOR PART INFORMATION PENDING INVESTIGATION. *S/D* SHOP FINDINGS REPORTED T1 BLADE FRACTURE DUE TO OVERTEMP AT POINT OF FRACTURE.

Part: SKIN — CRACKED (FWD FUSELAGE)

INSPECTION FOUND A .4375 INCH CRACK IN FUSELAGE SKIN BELOW FIRST OFFICER'S EYEBROW WINDOW. THE SKIN WAS REPAIRED IAW SRM 53-30-3, PAGES 26 TO 28E, REPAIR NR 7.

Part: CONTROL CABLE — BROKEN (LT TE FLAP)

EWR - FLT 1160 - THE AIRCRAFT ROLLED LEFT ON FLAP EXTENSION FOR LANDING ON APPROACH TO EWR. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE LT INBOARD TRAILING EDGE FLAP JAMMED DUE TO A BROKEN FOLLOW-UP CABLE ON INBOARD JACKSCREW. CABLES BC-3 AND BC-4 AND THE FLAP DRIVE MECHANISM WERE REMOVED AND REPLACED IAW MM 27-51-35 AND OHM 57-53-22. AN ADJUSTMENT AND TEST OF THE FLAP WERE PERFORMED IAW MM 27-51-12. OPERATIONAL CHECKS WERE GOOD. (X)

Part: INTERCOSTAL — CRACKED (NR 2 SLAT TRACK)

GSO - INSPECTION FOUND A .75 INCH CRACK IN INTERCOSTAL OF NR 2 SLAT INBOARD SLAT TRACK, AT SLAT TRACK ATTACH FITTING AREA. THE CRACK WAS STOP-DRILLED. A REPAIR DOUBLER WAS FABRICATED AND INSTALLED IAW SRM 57-30-3 AND SRM 51-30-2. (X)

Part: WEBBING — CRACKED (WS 139)

GSO - THE RIGHT WING CENTER INBOARD OF STA 139 HAD WEBBING WITH CRACKS AROUND FASTENER HOLES. THE CRACKS WERE .25 INCH LONG. THE CRACKED AREAS WERE REMOVED. REPAIR ANGLES WERE FABRICATED AND INSTALLED IAW SRM 51-30-2 AND SRM 51-40-6. (X)

Part: RIB — CRACKED (WS 738)

GSO - INSPECTION FOUND A .25 INCH CRACK IN RADIUS OF RT RIB AT LOWER FORWARD ATTACH HOLE, STA 738. THE CRACK WAS STOP-DRILLED. DOUBLER AND FILLER WERE FABRICATED AND INSTALLED IAW SRM 51-30-2 AND SRM 57-10-5. (X)

Part: INTERCOSTAL — CRACKED (NR 6 SLAT)

GSO - THE NR 6 SLAT INTERIOR HAD TWO EACH INTERCOSTALS CRACKED AT INBOARD SLAT TRACK ATTACH FITTING. EACH CRACK WAS APPROXIMATELY .50 INCH LONG. A DOUBLER REPAIR WAS FABRICATED AND INSTALLED IAW SRM 51-30-2 AND SRM 57-50-3. (X)

Part: RIB — CORRODED (NR 3 LE SLAT TRK)

GSO - INSPECTION FOUND THE OUTBOARD RIB/WEB AND BOLT HOLE BUSHINGS CORRODED AT THE NR 3 LEADING EDGE SLAT OUTBOARD TRACK TO SLAT ATTACH POINT. THE CORROSION WAS CLEANED UP AND REPAIR PARTS WERE FABRICATED AND INSTALLED IAW SRM 57-50-3 AND SRM 51-30-2. (X)

Part: SKIN — CRACKED (LT WING LE)

GSO - A .50 INCH CRACK WAS FOUND IN LT WING FIXED LEADING EDGE SKIN AT TOP OF CENTER OF CUT-OUT FOR OUTBOARD TRACK ON NR 3 SLAT. THE CRACK WAS STOP-DRILLED. A REPAIR DOUBLER WAS FABRICATED AND INSTALLED IAW ECRA 5762-01020. (X)

Part: EEL BATT — DISCHARGED (RT EXTERIOR)

GSO - THE RT EXTERIOR OVERWING EMERGENCY LIGHTING WAS FOUND INOPERATIVE DURING SERVICE CHECK. THE POWER SUPPLY AND BATTERY PACK WAS REPLACED AND OPERATION OF THE EXTERIOR OVERWING EMERGENCY LIGHTING WAS RESTORED. REFERENCE CAL950354 .

Part: EEL POWER SUPPLY — INOPERATIVE (RT EXTERIOR)

GSO - THE RT EXTERIOR OVERWING EMERGENCY LIGHTING WAS FOUND INOPERATIVE DURING SERVICE CHECK. THE POWER SUPPLY AND BATTERY PACK WAS REPLACED AND OPERATION OF THE EXTERIOR OVERWING EMERGENCY LIGHTING WAS RESTORED. REFERENCE 95ZZZW711.

Part: EEL WIRING — BROKEN (CABIN)

FLT NR 1275 - GSO - AIRCRAFT ARRIVED WITH EMERGENCY PATH LIGHTS ON, LIGHTS WOULD NOT GO OUT REPLACED BATTERY PACK OPS CHECK GOOD. THE BATTERY PACK WAS NOT AT FAULT. MAINTENANCE FOUND WIRING BROKEN AT BOTH THE AFT BULLNOSE LIGHT ASSEMBLY AND AT THE EMERGENCY EXIT SWITCH. THE BROKEN WIRES WERE REPAIRED. THE WIRING WAS CONFIRMED PER B737-200 WD33-51-01, PG 921 AND HOOK-UP CHART 91-21-51. (W)

Part: ENGINE — MALFUNCTIONED (NR 2)

FLT NR 1629 - ATL - THE NR 2 ENGINE OIL TEMPERATURE REACHED RED LINE WHILE EN ROUTE TO MSY. THE NR 2 ENGINE WAS SHUT DOWN AND THE AIRCRAFT WAS DIVERTED TO ATL WHERE IT LANDED WITHOUT INCIDENT. THE NR 2 ENGINE WAS REMOVED AND REPLACED. LEAK AND OPERATIONAL CHECKS WERE GOOD. (Z)