N37507
Registered owner: UNITED AIRLINES INC, IL (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
13 reports on file, 2023-09-18 – 2026-08-14.
Part: LIGHT — FAULTED (ZONE 200) · airframe 19,738 hrs · 6,562 cycles
ALL FIRST CLASS EEPL WILL NOT ILLUMINATE REPLACED FUSES NO HELP. TRACED WIRES REF WDM 33-51-21. GOOD CONTINUITY THROUGHOUT CIRCUIT. INSPECTED ALL WIRES ALONG FLOOR IN FIRST CLASS, NO BREAKS OR DAMAGED WITING. SHOOK BUNDLES AND RECONNECTED ALL CONNECTORS. OPS CHECK GOOD LIGHT OPERATE NORMALLY
Part: TAT PROBE — FAULTED · airframe 18,370 hrs · 6,108 cycles
AFTER TAKEOFF WE LOST VNAV AND ALL FUEL TIME AND DISTANCE DATA. A/T THRUST LIMIT BITE CHECK FMC LEFT AND RIGHT OPS CK OK. T/S OMF TO FAULT CODE 73-43830 TAT FAULT PICKED UP BY BOTH ENGINE 1&2 EEC. REMOVED AND REPLACED TAT REF AMM 34-21-06 NO FAULTS NOTED AT THIS TIME. REF LP 8190715 FOR SEALANT APPLICATION ON TAT PROBE DEFERAL
Earlier reports · 2023–2025 · 11 reports
2025
Part: MOTOR — FAILED (LAVATORY) · airframe 17,551 hrs · 5,832 cycles
LAV E FLUSH MOTOR EXTREMELY HOT TO TOUCH AND BURNING ODOR IS PRESENT IN LAV. DISCONNECTED FLUSH SWITCH CONNECTOR IAW AMM 38-32-04, CONNECTORS STOWED. FBO VERIFIED NO BURNING SMELL PRESENT AT THIS TIME. REPLACED TOILET IAW AMM 38-32-01-000-806. OPS CHECKED GOOD.
Part: COVER — UNSECURE (ZONE 800) · airframe 16,327 hrs · 5,440 cycles
EMERGENCY EXIT DOOR COVER NEEDS TO BE RESEATED SEAT 20F, RESEATED SEAT 20F EMERGENCY EXIT DOOR COVER REF AMM 52-22-00-580-803
Part: FUSE — BLOWN (ZONE 200) · airframe 15,251 hrs · 5,097 cycles
EMERGENCY LIGHTS OPERATIONAL CHECK EMERGENCY LIGHTS OPERATIONAL CHECK - SEAT MOUNTED ASILE WAY LIGHTS INOP ROWS 1-5. REF 737 MAX AMM 33-51-06/201 REPLACED FUSE ON BATTER PACK M02816. ASILE LIGHTS RETURNED OPS CHECK GOOD.
Part: POWER SUPPLY — INOPERATIVE (ZONE 200) · airframe 14,749 hrs · 4,929 cycles
FIRST CLASS SEATS EMERGENCY LIGHTS AND 1R OUTSIDE DOOR LIGHT NOT WORKING. INSTALLED NEW POWER SUPPLY FUSES PER AMM 33-51-06-960-801 OPS CHECK GOOD.
Part: SEALANT — DAMAGED (ZONE 100) · airframe 14,588 hrs · 4,874 cycles
PROBE HEAT LIGHT COMES ON TEMP PROBE LT ON IN FLIGHT PIC ADDED R&R TOTAL TAT PROBE IAM AMM TASK 34-21-06-000-801/400-801, R&R WINDOW/PITOT HEAT MODULE IAW AMM TASK 30-00-02-400-801. PERFORMED SYSTEM TEST PITOT PROBE, AOA SENSOR AND TAT PROBE HEAT IAW AMM TASK 30-31-00-730-801. ALL TEST PASS, NO MX MSG ON DISPLAY. APPLIED SEALANT ,OPS CKD OK REF. AMM34-21-06-400-801.
Part: SKIN — DENTED (ZONE 100) · airframe 14,464 hrs · 4,833 cycles
HIT AN ANIMAL JUST PRIOR TO ROTATION AT APPROXIMATELY 135 KIAS. PERFORMED BIRD STRIKE INSPECTION AMM 05-51-18-210-801 ONLY DAMAGE FOUND WAS DENT RIGHT SIDE JUST BEHIND RADOME. FORWARD DENT AT STA 183 AND STRINGER 24R, DENT IS SMOOTH AND NO PULLED RIVETS, MEASURES 4"X2"X.020. W/Y=100, REF SRM53-00-01-1A-1, PAR 4,B, AND FIG 103 G. DENT IS WITHIN ALLOWABLE LIMTS. AFT DENT AT STA 188 AND STR 24 R, DENT IS SMOOTH AND NO PULLED RIVETS, DENT IS WITHIN ALLOWABLE LIMITS.
2024
Part: LIGHT — INOPERATIVE (ZONE 200) · airframe 13,964 hrs · 4,671 cycles
EMERGENCY EXIT PANEL LIGHT OUT LH SIDE AFT OVERWING EXIT SIDEWALL LIGHT IS FLICKERING REQUESTING MEL FOR SIDEWALL LIGHT FLICKERING, PULL AND COLLARED CB WINDOW LT LEFT ON P92 PANEL REF WDM 33-21-11-2. TOMC APPROVED FOR MEL 3321A MEL MAINTENANCE ACTION COMPLETED *DM* SEE M/L FOR AFT OVERWING LIGHT ASSY M2838. TESTED LIGHT OPERATING NORMALLY
Part: LIGHT — MALFUNCTIONED (ZONE 200) · airframe 13,736 hrs · 4,601 cycles
ROW 21ABC...EMERGENCY EXIT DOOR LIGHT IS INOP LIGHT OPERATES NORMAL AT ROW 21BC, CYCLED CABIN SYS LIGHTS OPS CK GOOD AT THIS TIME
Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 13,320 hrs · 4,477 cycles
SUPPORT TASK EMERGENCY LIGHTS FAIL OPS CHECK, TRANSCRIBED FROM HAECO GSO NR 9288540 REMOVED AND REPLACED CHARGER ASSY AND BATTERY PACKS AND OPS CHECK GOOD IAW BOEING AMM 33-51-06-960-802. REMOVED AND REPLACED ALL CHARGER ASSEMBLIES AND BATTERY PACKS.
2023
Part: AUTOBRAKE SYS — UNKNOWN (STA 318.75) · airframe 10,580 hrs · 3,528 cycles
ANTI SKID INOP AFTER TO IN DEN CONTACT TOMC UNLOCKING PERFORMED AACU BITE TEST REF AMM 32-42-00-740-801, FOUND MSGS PWR 2-3, PARKBRK, BOX 4, #THR SW IN MEMORY RECALL TEST (FAULT HISTORY). PERFORMED ANTISKID/AUTOBRAKE CONTROL TEST FOR EACH FAULT HISTORY MSGS FOUND THAT STORED MSGS ARE INTERMITTENT, ADD EMP:U333195,U242568 OTHER MSGS FOUND PWR AB, PRESL, PRESR AFTER PERFORMING ANTISKID/AUTO BRAKE CONTROL TEST . AS PRECAUTIONARY TECH SUPPORT SUGGESTS REMOVE AND REPLACE AACU (M162) REF AMM32-42-21/401. PARTS ADDED INSTALLED TRACKING TAG NUMBER 1829761 . SERIAL NUMBER 1463 CONTROL, AUTOBR OFF 42-3242-9-0001 9360 ON 0000 CONTROL, AUTOBR OFF 42-3242-9-0001 9360 ON 42-3242-9-0001 1463 REMOVED AND REPLACED ANTISKID/ AUTOBRAKE CONTROL UNIT REF 32-42-21/401 ALSO PERFORMED ANTISKID/AUTOBRAKE CONTROL UNIT OPERATIONAL TEST AND BITE CONTROL UNIT REF AMM 32-42-00-720-801 AND 32-42-00-740-801. ALL WORK NORMAL. NO FAULT.
Part: SHUTOFF VALVE — UNKNOWN (ENG 1) · airframe 10,511 hrs · 3,503 cycles
ON TAKEOFF LEFT BLEED AND NO 1ENG ATNTI ICE TRIPPED. BLEED RESET EAI DID NOT INTERROGATED OBM AND FOUND MAINTENANCE MSG ENG 1 HPSOV IS NOT IN COMMANDED POSITION ADD FAULT: 36-11020 FLAGGED FOR SDR MATERIALS UPDATE REQUEST DEFERRAL OF NO. 1 HP SOV PER MEL 3611AK DEFERRED NO. 1 HP SOV LOCKED IN CLOSED POSITION PER MEL 3611AK. DDP C/W. MAINT LIGHT IS INHIBITED. PLACARD INSTALLED DISPATCH DESK: 01 NAME: RR DATE: 18-SEP-23- TOMC APPROVED. REF LOG PAGE 5791124, HIGH STAGE VALVE REPLACED AND PNEUMATIC TEST IN FIM 36-11 TASK 802 COMPLETED. RAN ENGINE AT HIGH POWER,90% N1, AND NO BLEED TRIP OR ENGINE ANTI-ICE LIGHT ILLUMINATED. R&R PLACED BOTH MINIMUM PRESSURE AND OVER PRESSURE SWITCH PER AMM 30-21-21 AND RAN ENGINE AND LEAK CHECK GOOD BUT FAULT DID NOT CLEAR. WHEN GOING TO FMC DISCRETE OUTPUT PAGES THE ENG 1 ANTI ICE SWITCH WHEN TURNED TO THE ON POSITION STAYS OFF ON THE UPDATE LABOR HOURS AND GROUND TIME R&R ANTI ICE MODULE IN FLIGHT DECK PER AMM 30-00-01-400-801 AND PERFORMED OPS CHECKS PER AMM 30-00-01-710-801 AND STILL FAULTING ENGINE 1 ANTI ICE. DISCRETE PAGE. SUSPECT ENG 1 ANTI ICE MODULE OR WIRING ISSUE OR ANTI ICE COWL VALVE. COMPLETED FIM 36-11 TASK 802 AND NO 1 ENGINE ANTI-ICE VALVE IS EXTINGUISHED. RAN ENGINE AT 90% N1 AND ANTI ICE VALVE DID NOT ILLUMINATE. CYCLED ANTI- PICE VALVE SEVERAL TIMES AND THE LIGHTS OPERATED NORMALLY. REMOVED 1# ENGINE HPSOV IAW AMM 36-11-07-000-801 HPSOV PART#: 63292068-2 & SERIAL#: 2372 PART REMOVED AND HANDED TO MIDNIGHTS TERMINAL