N37507

BOEING 737-9 · Fixed-wing multi-engine · 2 engines · 48 seats · Valid Registration

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.

NO TEST · 2026-08-14 Matched by certificate designator
ATA 3350

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

Source: SDR CALA2026081718654
MULTIPLE FAILURE; WARNING INDICATION · 2026-03-12 Matched by certificate designator
ATA 3412

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

Source: SDR CALA2026031614595
Earlier reports · 2023–2025 · 11 reports

2025

SMOKE/FUMES/ODORS/SPARKS · 2025-12-03 Matched by certificate designator
ATA 3830

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.

Source: SDR CALA2025120711816
OTHER · 2025-08-02 Matched by certificate designator
ATA 5220

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

Source: SDR CALA2025080607373
NO TEST · 2025-04-18 Matched by certificate designator
ATA 3397

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.

Source: SDR CALA2025042104049
OTHER · 2025-02-18 Matched by certificate designator
ATA 3350

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.

Source: SDR CALA2025021902373
WARNING INDICATION · 2025-01-28 Matched by certificate designator
ATA 3030

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.

Source: SDR CALA2025013102145
F.O.D. · 2025-01-12 Matched by certificate designator
ATA 5330

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.

Source: SDR CALA2025011401902

2024

OTHER · 2024-11-24 Matched by certificate designator
ATA 3350

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

Source: SDR CALA2024112601307
OTHER · 2024-11-04 Matched by certificate designator
ATA 3350

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

Source: SDR CALA2024110601029
NO TEST · 2024-09-20 Matched by certificate designator
ATA 3350

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.

Source: SDR CALA2024092302467

2023

OTHER · 2023-09-25 Matched by certificate designator
ATA 3240

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.

Source: SDR CALA2023092702892
WARNING INDICATION · 2023-09-18 Matched by certificate designator
ATA 3600

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

Source: SDR CALA2023092002823