N741AL

Part: FMC — MALFUNCTIONED (RIGHT) · airframe 61,596 hrs · 57,079 cycles

DURING CLIMB-OUT, THE CREW NOTED A RIGHT FMC FAILURE. CREW SELECTED BOTH ON LEFT AND 10 MINUTES LATER DUEL FMC OPERATION WAS RESTORED. CREW CONTINUED TO SNA WITHOUT FURTHER INCIDENT. MAINTENANCE PERFORMED BITE CHECK OF RIGHT FMC PER FIM 34-61-00-810 TASK 801 AND FOUND NO FAULTS. THE AIRCRAFT WAS RETURNED TO SERVICE. THE NEXT FLIGHT LEG, THE RIGHT FMC PASSED A FLIGHT VERIFICATION CHECK.

Part: RADIO — MALFUNCTIONED (NR 1) · airframe 20,582 hrs · 5,426 cycles

ETOPS FLT 483 SNA-OGG. DURING FLIGHT, CREW NOTED THE NR 1 HF RADIO WOULD NOT TRANSMIT BUT WOULD RECEIVE. MAINTENANCE FOUND THE RADIO OPERATED NORMALLY ON THE GROUND AND RETURNED THE AIRCRAFT TO SERVICE.

Part: RADIO — MALFUNCTIONED (NR 1) · airframe 20,586 hrs · 5,426 cycles

FLT 474 OGG-OAK - DURING FLIGHT, CREW NOTED THE NR 1 HF RADIO WOULD NOT TRANSMIT WHEN THE MICROPHONE BUTTON WAS DEPRESSED. MAINTENANCE FOUND THE RADIO OPERATED NORMALLY PER FIM 23-11-00-810-806 ON THE GROUND AND RETURNED THE AIRCRAFT TO SERVICE.

Part: SWITCH — MALFUNCTIONED (PITOT HEAT) · airframe 19,505 hrs · 5,140 cycles

ON TAKE OFF THE ENGINE CONTROL LIGHT AND MASTER CAUTION LIGHT ILLUMINATED WHEN THE CREW PRESSED THE TO/GA BUTTON AT 30 KNOTS. CREW EXECUTED A LOW SPEED REJECTED TAKE OFF AND RETURNED TO GATE WITHOUT FURTHER INCIDENT. MAINTENANCE PERFORMED AN EEC BITE CHECK PER FIM 73-06-00-810-801 AND RESET THE PITOT HEAT SWITCH. ALL SYSTEMS GROUND OPS CHECK GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: WARNING LIGHT — ILLUMINATED (PAX DOOR) · airframe 29,905 hrs · 18,562 cycles

AFT ENTRY DOOR LIGHT ILLUMINATED ON CLIMB, DIVERTED TO ONTARIO AIRPORT. LANDED IN ONTARIO WITHOUT INCIDENT. INSPECTED AND CHECKED AFT L2 AS PER AMM 52-10-00-810-801 AND AMM 52-13-00-5. PERFORMED BITE CHECK AS PER FIM 32-09-00-810-801. FAULT INTERMITTENT, AIRCRAFT OK FOR SERVICE. AIRCRAFT RETURNED TO SERVICE.

Part: DOOR — OPEN (PAX DOOR)

ON TAKE-OFF ROLL, AFT ENTRY DOOR INDICATOR ILLUMINATED. THE CREW EXECUTED A REJECTED TAKE-OFF AT 90 KTS. INDICATED AIRSPEED AND RETURNED TO THE GATE WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND AND REMOVED DEBRIS FROM THE DOOR TRACK, INSPECTED AND OPS CHECKED THE DOOR, AND RETURNED THE AIRCRAFT TO SERVICE.

Part: TRANSDUCER — FAILED (DUCT PRESSURE)

ETOPS FLIGHT 484 HNL-SNA. DUCT PRESSURE SPLIT ON CLIMB (FL 290) LEFT DUCT AT 26 PSI. RIGHT DUCT AT 46 PSI. N1 AND N2 THE SAME ON BOTH ENGINES. AT FL370 LEFT DUCT AT 20 PSI. RIGHT DUCT AT 44 PSI. N1 AND N2 SAME ON BOTH ENGINES. CREW RETURNED TO HNL WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LEFT HAND DUCT PRESSURE TRANSDUCER. MAINTENANCE ALSO REMOVED AND REPLACED THE PRECOOLER CONTROL VALVE SENSOR (P/N: 129666-2, S/N: 8315) AS A PRECAUTION. ALL OPERATIONAL AND LEAK CHECKS GOOD. A TEST FLIGHT WAS CONDUCTED AND THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: VALVE — FAILED (NR 1 ENGINE)

ETOPS: FLT. 476 OGG-SAN: DUCT PRESSURE GRADUALLY SPLITS DURING CLIMB, AT CRUISE SPLIT IS 23 PSI, LEFT - 19 PSI, RIGHT - 42 PSI. AIRCRAFT DIVERTED TO HONOLULU AND COMPLETED AN OVERWEIGHT LANDING WITHOUT INCIDENT. FOUND HIGH STAGE VALVE AND PRSOV PRESSURE SENSE LINE LEAKING AIR. REMOVED AND REPLACED HIGH STAGE VALVE IAW AMM 36-11-06-4. OPS AND LEAK CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.

Part: ENGINE — MALFUNCTIONED (NR 2)

ETOPS FLT 473 OAK-OGG: ENGINE NR 2 SHUT DOWN AFTER START. ENGINE NR 2 WAS SLOW TO SPOOL AFTER PUSHBACK. ENGINE NR 1 HITS 40 PERCENT BEFORE ENGINE NR 2 HIT 26 PERCENT. RETURNED TO GATE. PERFORMED EEC BITE IAW FIM 74-00-00-810-801-F00, NO FAULTS NOTED. PERFORMED EEC TEST IAW 73-21-00-700-804-F00, NO FAULTS NOTED. PERFORMED TEST 8 - ACCELERATION CHECK PER TASK 71-00-00-700-824-F00, ACCELERATION CHECK OKAY. AIRCRAFT RETURNED TO SERVICE.

Part: CONTROLLER — MALFUNCTIONED (NR 2)

OAK - HNL: AFTER T/O CLIMB, CABIN ALTITUDE STUCK AT 0. SWITCHED TO ALTERNATE, BUT NO CHANGE. CONTINUED TO CLIMB IN MANUAL MODE. SWITCH BACK TO AUTO AT CRUISE, OKAY. FURTHER STEP CLIMB HAD TO BE DONE IN MANUAL. ALL QRH PROCEDURES ACCOMPLISHED. REMOVED AND REPLACED THE NR 2 PRESSURE CONTROLLER PER MM 21-31-01-000-801 AND 21-31-01-400-801. BITE TEST FOR NR 1 AND NR 2 CONTROLLER SHOWED NO FAULT. AIRCRAFT RETURNED TO SERVICE. VERIFICATION FLIGHT GOOD (5/12/05).

Part: INDICATOR — MALFUNCTIONED (STDBY ALTIMETER)

STANDBY ALTITUDE INDICATOR FAILED AT 30,000 FEET ON CLIMBOUT. DIVERTED TO HNL FOR UNEVENTFUL LANDING. LANDED AT 143,600 LBS AND LESS THAN 100 FPM. BRAKES APPLIED AT 90 KIAS, ONLY SLIGHT BRAKING APPLIED. REPLACED THE STANDBY ALTITUDE INDICATOR. OPS CHECK OK IAW AMM 34-24-01-4. PERFORMED AN OVERWEIGHT LANDING CHECK IAW AMM 05-51-35-2. NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE. VERIFICATION FLIGHT CHECKED OK.

Part: HANDLE — OUT OF POSITION (PAX DOOR)

ETOPS FLT 444, HNL-OAK, RT SERVICE DOOR EXTERIOR HANDLE IN VIEW OF WINDOW FROM INSIDE. NO PRESSURIZATION PROBLEM. RETURNED TO HNL. PERFORMED FIM TASK 52-10-00-810-808. VERIFIED FWD SERVICE DOOR IN LOCKED POSITION WITH HANDLE STOWED. PERFORMED VISUAL INSPECTION OF THE FORWARD SERVICE DOOR. NO DEFECTS NOTED. OVER GROSS WEIGHT LANDING <200 FT MIN DESCENT ON LANDING. PERFORMED OVERWEIGHT LANDING INSPECTION IAW AMM 05-51-35-2, PHASE I INSPECTION DUE TO AIR RETURN. NO DEFECTS NOTED.

Part: O-RING — DAMAGED (FUEL SYSTEM)

FLT 462 - HNL-BUR, FUEL BURNING OUT OF THE NR 2 MAIN TANK WITH THE CENTER PUMPS 'ON' CAUSING FUEL IMBALANCE BETWEEN THE WING TANKS. THE BURN RATE IS 600 LBS PER HOUR. TURNED NR 2 PUMPS OFF AND REDUCED THE BURN RATE TO APPROXIMATELY 300 LBS PER HOUR. TURNING THE AFT FUEL PUMP OFF ONLY REDUCED THE BURN RATE TO 100 LBS. RETURNED TO HNL FOR UNEVENTFUL LANDING. MAINTENANCE VERIFIED WHEN NR 2 AFT FUEL PUMP IS ON, THE NR 2 MAIN FUEL TANK QUANTITY MIGRATES TO THE CENTER FUEL TANK. REMOVED AND REPLACED NR 2 AFT FUEL PUMP DISCHARGE CHECK VALVE O-RINGS. VERIFIED NO FUEL MIGRATION WITH NR 2 AFT FUEL PUMP ON. AIRCRAFT RETURNED TO SERVICE. (M)

Part: DOOR FRAME — GOUGED (CARGO BAY)

GAUGE LOCATED AT FORWARD CARGO DOOR FORWARD FRAME UPPER CORNER CUTOUT. CUTOUT THE DAMAGE TO MAINTAIN WITHIN A 1 INCH DIAMETER. PERFORMED HFEC INSPECTION AT CUTOUT AREA PER NDT. APPLIED ALODINE AND PRIMERED ALL BARE SURFACES. CUTOUT FILLED WITH BMS 5-95 SEALANT IAW ECO. RECEIVED 8110-3 APPROVAL. AIRCRAFT RETURNED TO SERVICE.

Part: TERMINAL — LOOSE (FUEL SYSTEM)

CLIMB TO CRUISE ALTITUDE, NR 2 FUEL QUANTITY GAUGE DROPPED 1200 POUNDS FOR ABOUT 2 MINUTES. A/C DIVERTED AND LANDED WITH NO FURTHER PROBLEMS. MAINT PERFORMED TESTS ON INSPECTED WING TO BODY AND SPAR CONNECTORS WITH NO DEFECTS NOTED. SUMPED TANKS AND MOISTURE TESTED ALL SAMPLES, NO DISC WERE NOTED. DURING VERIF FLT NR2 TANK INDICATED A 1500 LB DIFF IN READING. INSULATION/ CAP TEST WAS COMPLETED ON PROBES AND COMPENSATOR, ALL WERE FOUND TO BE IN LIMITS. DURING NR 2 FUEL TANK AND COMPENSATOR UNIT TEST, PROB TERMINAL WAS FOUND TO BE LOOSE. DISC WAS CORRECTED AND FUEL TANK CAPACITANCE CHECK WAS COMPLETED. A/C WAS RETURNED TO SERVICE.