- Registered owner
- United Airlines Inc
- Location
- Chicago, IL
- Owner type
- Corporation
- Serial number
- 43439
- Type
- Fixed wing multi engine
- Engine
- Turbo-fan
- Certificate issued
- November 8, 2018
- Expires
- November 30, 2028
- Mode S code
- A448D7
From the FAA registry file of October 24, 2026.
On this page
Airworthiness directives that may apply · 39
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 2018 | 3 |
|---|---|
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 9 |
| 2022 | 2 |
| 2023 | 8 |
| 2024 | 5 |
| 2025 | 2 |
| 2026 | 8 |
See all 46 ADs
Information bulletins that may apply · 4
Advisory, not mandatory.
NTSB investigations
No NTSB investigations matched to N37508Matched by N-number and event date, checked against the reported serial number, make and model. Investigations from before this aircraft carried the mark are under Earlier aircraft. Investigations on Boeing 737-9 aircraft
FAA incident reports
No FAA accident or incident reports matched to N37508Matched by N-number and event date, checked against the reported make and model. Reports from before this aircraft carried the mark are under Earlier aircraft. Reports on Boeing 737-9 aircraft
Service difficulty reports · 11
Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.
SDR CALA2026071017659Battery Pack · inoperativeEMERGENCY LIGHTS OPERATIONAL CHECK EMERGENCY LIGHTS OPS CHECKED, 2EA EMEGENCY EXIT SIGNS AND EXTERNAL LIGHT AT AFT GALLEY DOOR INOP. REPLACED POWER SUPPLY & BATTERY M1672 IAW AMM TASK 33-51-06-960-803, AND TASK 33-51-06-960-802. LIGHTS TEST GOOD IAW AMM TASK SDR CALA2025100809788Unknown · fumesON START OF NUMBER 2 ENG.FA IN BACK SAID PAX SMELLED FUMES FROM ENG. SMELL GONE IN 1 MIN PER CONVERSATION WITH TOMC. RAN NR 2 ENGINE THEN STARTED AIR CONDITION ON. NO FUMES IN CABIN. PER AMM 05-51-56-200-801 NO ACTION REQUIRED. ALSO FUME CHECK LIST.SDR CALA2025082808237Pressure Gauge · faultyENGINE 2 ANTI ICE LIGHT ILLUMINATED AT TOD SECOND WRITE UP TOP = TOP OF DESCEND. ONCE FLIGHT CREW STARTED TO RETARD THE LEVER, THE ENG2 ANTI-ICE ILLUMINATED. FOUND MSG 36-21011 ACTIVE, OCCURED DURING DESCENT AND ENG START. PERFORMED GND TEST PER FIM 36-21 TASKSDR CALA2025052805026Light · brokenFA STATES EMERGENCY EXIT LIGHT ASSY AT 23ABC BROKEN. REMOVED AND REPLACED EMERGENCY EXIT LIGHT ASSY AT 23 ABC IAW AMM 33-51-11-960-801. OPS CHECK GOOD. NO DEFECT NOTED.SDR CALA2025051204610Skin · damagedACCOMPLISH PERMANENT REPAIR OF FWD LOWER FUSELAGE BY RADOME AT STA 178 BL 0 PER ECRA 5310-08583 PART 3, ON OR BEFORE 24 MONTHS ...REF L/P# 4699788 FOR ALL WORK ACCOMPLISHED. UPGRADED TO MAJOR REPAIR REF EC/RA#:5310-08583 REV A. ADDED ESFR INFORMATION. REF ECSDR CALA2024061701818Idg · faultedGENERATOR DRIVE LIGHT COMES ON WITH ENGINE ABOVE IDLE IN FLIGHT DURING CLB RAN ENGINE. DRIVE LIGHT REMAINED ILLUMINATED AND OUT LIGHT CAME IDG REQS REPLACEMENT. REMOVED IDG REF AMM 24-11-11-000-801, ALL INSTALLED NEW IDG AT E2 REF AMM 24-11-11-400-801. STILL RSDR CALA2023051901564Panel · damagedRAMP REPORTED OF AFT CARGO PIT PANEL DAMAGE IN MULITIPLE AREAS.SDR CALA2023051901555Liner · damagedRAMP REPORTS DAMAGE TO AFT CARGO COMP. SIDEWALL LINERS. SDR FLAGGED. PICTURES ADDEDSDR CALA2021101401883Idg · noneFOUND ON WALK AROUND. #1 ENGINE HAS EVIDENCE OF OIL LEAK ON OBOARD SIDE. FOUND IDG OIL LEVEL SHOWS NO OIL IN SIGHT GLASS. PLEASE SEE ATTACHED PICTURES. SERVICED IDG TO FULL. 5 PINTS ADDED. REF. AMM-12-13-21-600-801. ACCOMPLISHED 5MIN IDLE RUN. NO EVIDENCE OF OSDR CALA2021091001557Unknown · leakingFOUND ON WALK AROUND, EVIDENCE OF OIL STREAK ON O/B #1 ENGINE REVERSER HALF. FOUND IDG OIL LEVEL LOW. SERVICED IDG TO FULL. ADDED 3 QTS. REF. AMM-12-13-21-600-801. ACCOMPLISHED 5 MIN IDLE RUN. NO EVIDENCE OF OIL LEAK NOTED.SDR CALA2021033000385Battery Pack · inoperativeEMERGENCY LIGHT SYSTEM LIGHTS SOME INOP IDENTIFIED POWER SUPPLY M1671 TO BE INOP IAW WDM 33-51-27-1 PAGE 1. REPLACED POWER SUPPLY BATTERY M1671 IAW AA TASK 31-51-06-960 -803 TEST OK V915690
STCs that may be installed · 105
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
See all 105 STCs
Earlier aircraft with this N-number · 1
This aircraft carried N37508 before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.