- Registered owner
- United Airlines Inc
- Location
- Chicago, IL
- Owner type
- Corporation
- Serial number
- 43434
- Year built
- 2018
- Type
- Fixed wing multi engine
- Engine
- Turbo-fan
- Airworthiness
- Standard, transport
- Airworthiness date
- April 30, 2018
- Certificate issued
- May 1, 2018
- Expires
- May 31, 2028
- Mode S code
- A2BB83
Boeing 737-9TCDS A16WEAirframe · Boeing 737-9TCDS E00088ENEngine · CFM International LEAP-1B28 series
From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every CFM International LEAP-1B28 model are included below.
On this page
Airworthiness directives that may apply · 48
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 2018 | 5 |
|---|---|
| 2019 | 4 |
| 2020 | 7 |
| 2021 | 10 |
| 2022 | 4 |
| 2023 | 9 |
| 2024 | 6 |
| 2025 | 5 |
| 2026 | 8 |
See all 58 ADs
Information bulletins that may apply · 4
Advisory, not mandatory.
NTSB investigations
No NTSB investigations matched to N27503Matched 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 N27503Matched 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 · 10
Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.
SDR CALA2026051416233Slide · out of positionDISCOVERED AFT L2 AND R2 ESCAPE SLIDE INSTALLED IN WRONG POSITION SWAPPED R2 AND L2 DOOR SLIDE/PAN ASSY PER AMM 25-66-01-400-802. A/C RECORDS SWAPPED SERIAL NUMBER LOCATIONS VERIFIED AND ACCOMPLISHED RII INSP REQ FOR L2 AND R2 ESCAPE SLIDE ASSY'S INSPECTION ANSDR CALA2025101410052Oil System · leakingOIL LEAKING FROM NR 1 ENG OIL LEAK IS ONLY COMING FROM C-SUMP DRAIN #1 ENG. OIL CONSUMPTION IS BELOW .20 QTS PER HOUR. PERFORMED IDLE LEAK CHECK NO ACTIVE OIL LEAKS OR FUMES OR FOGS AT IDLE. PLACE ON 5 CYCLE DIP IN REF TO AMM 71-71-00-200-801-G00. TOMC APPROVESDR CALA2025081507839Hook And Loop · looseL2 DOOR SLIDE EXCESSIVE MATERIAL HANGING OUT. SECURED HOOK AND LOOP STRIP ON GIRT BAR.SDR CALA2025081307682Light · detachedSEAT 12C EMERGENCY LIGHT WIRE & HOLDER OUT AND SITTING ON SEAT. EMERGENCY LIGHT INOPERATIVE. SEAT MOUNTED LIGHT AT 12 C. ITEM SECURED DOESNT CAUSE HAZARD TO THE PAX. REQUESTING TO DEFER. MEL 3351D REJECTED LIGHT ASSEMBLY SECURED, SECURED WITH TIE WRAPS ECRASDR CALA2025063006046Girt Bar · no discrepancyREAR LEFT DOOR GIRT BAR MATERIAL ABNORMALLY DROPPED OUT. FOUND TO BE WITH IN LIMITS PER AMM 25-66-01-400-803.SDR CALA2025031402803Cover · loose10C EMERGENCY LT LOOSE REPLACED EMERGENCY LIGHT SHROUD AND OPS CK GOOD. REF. GMM 04-20-16 PARTS USED: 42-2521-3-0092,QTY :1 42-2521-3-0084,QTY :1SDR CALA2024051301435Battery Pack · no testBATTERY PACK M1672 FAILS 15 MINUTE TEST (REF AAR NR 100006969)SDR CALA2024051301434Battery Pack · no testBATTERY PACK M2503 FAILS 15 MINUTE TEST (REF AAR NR 100006968)SDR CALA2024051001426Floor Support · crackedFOUND CRACK ON LHS INNER CHORD AT STA 500D + 10" UNDER FLOOR PANEL 231MF. (REF: AAR NR 100006895)SDR CALA2021042200527Anti-Ice Valve · failedWING ANTI-ICE VALVE LIGHT STAYS ON AFTER TRANSITION L/ H WING ANTI-ICE VALVE LOCKED IN OPEN POSITION REF MEL 3011B. STICKER PLACED NEXT TO SWITCH. FOR CLARITY. IT IS THE LEFT WING ANTI ICE VALVE THAT STAYS ON DISPATCH DESK. TOMC APPROVED COMPLIED WITH MEL. R
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 · 2
These aircraft carried N27503 before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.