N746AL

ATA 2750

Part: TRANSMITTER — INTERMITTENT (TE FLAPS) · airframe 26,481 hrs · 10,583 cycles

FLIGHT 486 LIH-SNA - DURING APPROACH, WHEN THE CREW ATTEMPTED TO EXTEND THE FLAPS, THE LEADING EDGE TRANSIT WARNING LIGHT ILLUMINATED AND THE TRAILING EDGE FLAPS LOCKED-OUT BEFORE FLAPS 1 WITH A SPLIT INDICATION ON THE FLAP GAUGE. THE CREW ELECTED TO DIVERT TO ONT DUE TO SNA AIRPORT RESTRICTIONS. THE CREW SELECTED ALTERNATE EXTENSION FOR THE FLAPS BUT THEY REMAINED LOCKED-OUT BEFORE FLAPS 1. THE CREW LANDED IN ONT WITHOUT FURTHER INCIDENT. MAINTENANCE PERFORMED A BITE CHECK OF THE FLAP SLAT ELECTRONICS UNIT PER AIRCRAFT FIM 27-51-00-810-801 AND FOUND INTERMITTENT FAULT 27-52260. THE RIGHT TRAILING EDGE FLAP POSITION TRANSMITTER DISAGREED WITH THE LEFT TRAILING EDGE FLAP POSITION TRANSMITTER. AS A PRECAUTION, THE RIGHT POSITION TRANSMITTER WAS CLEANED AND THE FLAPS WERE EXTENDED AND RETRACTED MULTIPLE TIMES WITH NO FAULTS FOUND. THE AIRCRAFT WAS RETURNED TO SERVICE. THE AIRCRAFT PASSED A FLIGHT VERIFICATION FOR THE OPERATION OF THE FLAPS ON THE NEXT FLIGHT LEG.

ATA 3150

Part: WARNING LIGHT — ILLUMINATED · airframe 23,550 hrs · 9,785 cycles

NON-ETOPS FLIGHT 482 SNA-RNO - AFTER TAKEOFF, THE CREW NOTED THE AFT CARGO DOOR OPEN INDICATION ILLUMINATED. CREW RETURNED TO SNA WITHOUT FURTHER INCIDENT. MAINTENANCE DEFERRED THE AFT CARGO DOOR INDICATION PER MEL 52-3-1 AND VERIFIED THE DOOR WAS CLOSED AND LOCKED FOR FLIGHT. AIRCRAFT WAS RETURNED TO SERVICE.

ATA 5270

Part: WARNING LIGHT — FALSE ACTIVATION (CARGO DOOR) · airframe 23,550 hrs · 9,785 cycles

ETOPS FLIGHT 481 SNA-HNL - DURING TAKEOFF RUN, CREW NOTED THE AFT CARGO DOOR OPEN INDICATION LIGHT ON. CREW ABORTED TAKEOFF AT APPROXIMATELY 90 KNOTS AIR SPEED. CREW RETURNED TO THE GATE WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED THE AFT CARGO DOOR AND VERIFIED THE DOOR WAS CLOSED FOR FLIGHT. AIRCRAFT WAS RETURNED TO SERVICE.

ATA 5754

Part: SKIN — DAMAGED (KRUEGER FLAP) · airframe 21,731 hrs · 9,294 cycles

FLT 468 SMF-SNA - AFTER TAKEOFF THE AIRCRAFT SUFFERED A BIRD STRIKE. CREW RETURNED TO SMF WITHOUT FURTHER INCIDENT. MAINTENANCE COMPLETED THE BIRD STRIKE INSPECTION PER AMM 05-51-18-2. INSPECTION FOUND DAMAGE TO THE RIGHT INBOARD KRUEGER FLAP AND A DENT ON THE RIGHT HORIZONTAL STABILIZER LEADING EDGE. MAINTENANCE REMOVED AND REPLACED THE RIGHT INBOARD KRUEGER FLAP PER AMM 27-81-11-4 AND DETERMINED THE DENT ON THE RIGHT STABILIZER TO BE WITHIN DENT LIMITS PER SRM 55-10-01-1A. AIRCRAFT WAS RETURNED TO SERVICE.

ATA 2310

Part: COUPLER — DEFECTIVE (HF COMM) · airframe 21,593 hrs · 9,258 cycles

DURING FLIGHT, NR 2 HF RADIO WOULD NOT TRANSMIT. CREW NOTED THAT OPERATIONAL CHECK OF SELCAL WAS NORMAL. AIRCRAFT LANDED IN HNL WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NR 2 HF COUPLER IAW AMM 23-11-61. MAINTENANCE PERFORMED AN OPERATIONAL CHECK OF NR 2 HF RADIO. AIRCRAFT WAS RETURNED TO SERVICE. THE FOLLOWING CREW PERFORMED A FLIGHT VERIFICATION FOR THE NR 2 HF SYSTEM. SYSTEM CHECK WAS FOUND NORMAL AND NOTED BY MAINTENANCE.

ATA 2310

Part: HF COMM — MALFUNCTIONED (COCKPIT) · airframe 21,582 hrs · 9,254 cycles

DURING FLIGHT, THE FIRST OFFICER WAS UNABLE TO TRANSMIT USING THE NR 2 HF RADIO. AIRCRAFT LANDED IN SAN WITHOUT FURTHER INCIDENT. MAINTENANCE PERFORMED FIM TASK 23-11-00-810-806 WITH NO FAULTS NOTED. OPERATIONAL CHECK OF NR 2 HF RADIO WAS FOUND NORMAL. AIRCRAFT WAS RETURNED TO SERVICE. THE FOLLOWING CREW PERFORMED A FLIGHT VERIFICATION FOR THE NR 2 HF SYSTEM. SYSTEM CHECK WAS FOUND NORMAL AND NOTED BY MAINTENANCE.

ATA 2310

Part: HF COMM — MALFUNCTIONED (COCKPIT) · airframe 21,543 hrs · 9,243 cycles

DURING FLIGHT, THE NR 2 HF WOULD NOT TRANSMIT ON 8843 OR 5524. AIRCRAFT LANDED IN SAN WITHOUT FURTHER INCIDENT. MAINTENANCE PERFORMED FIM TASK 23-11-00-810-801 WITH NO FAULTS NOTED. OPERATIONAL CHECK OF NR 2 HF RADIO WAS FOUND NORMAL. AIRCRAFT WAS RETURNED TO SERVICE. THE FOLLOWING CREW PERFORMED A FLIGHT VERIFICATION FOR THE NR 2 HF SYSTEM. SYSTEM CHECK WAS FOUND NORMAL AND NOTED BY MAINTENANCE.

ATA 3460

Part: COMPUTER — FAILED (NR 2 FMC) · airframe 20,788 hrs · 9,045 cycles

ETOPS FLIGHT 477 KOA-HNL: ON DESCENT, CREW NOTED FAILURE OF NR 2 FMC. CREW LANDED AT HNL WITHOUT FURTHER INCIDENT. MAINTENANCE PERFORMED FIM TASK 34-61-00-810-807. NO FAULTS WERE FOUND. MAINTENANCE DOWNLOADED NR 2 FMC DATA IAW ENGINEERING. AIRCRAFT WAS RETURNED TO SERVICE. ANALYSIS OF THE NR 2 FMC DATA CONFIRMED A DROP TO SINGLE FMC OPERATION DUE TO A SOFTWARE NUISANCE FAULT. AIRCRAFT WAS RETURNED TO SERVICE.

ATA 3600

Part: REGULATOR — FAILED (NR 2 ENGINE)

NR 2 ENGINE BLEED GIVES NO DUCT PRESSURE WITH ISOLATION VALVE IN AUTO OR CLOSED. RETURNED TO DEPARTURE AIRPORT, EXECUTED LOW SINK RATE LANDING. REMOVED AND REPLACED NR 2 ENGINE BLEED AIR REGULATOR IAW AMM 36-11-03-4. ENGINE NR 2 BLEED SYSTEM OPS CHECKS NORMAL. IAW MAINTENANCE CONTROL HNL PERFORM PRECAUTIONARY CHANGE OF WIRE HARNESS MW0311, REF: 737NG FTD-36-00001. REMOVED AND REPLACED MW0311 WIRE HARNESS IAW AMM 73-21-06-4. FADEC SYSTEM TEST PERFORMED IAW AMM 73-21-00-5. SYSTEM PASSED TEST. AIRCRAFT RETURNED TO SERVICE.