# CFM International LEAP-1B25

- Type: Engine model (FAA registry)
- Registry code: 13134
- Manufacturer (registry): CFM INTL
- Model: LEAP-1B25
- Engine type: Turbo-fan
- Power: 26,786 lb thrust
- Data sheet: [TCDS E00088EN](https://openairdocs.org/tcds/E00088EN) (OpenAirDocs)
- Holder: CFM International S.A.
- Installed in: 101 registered aircraft
- Page: https://openairdocs.org/engine/cfm-international-leap-1b25

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2025-14-08](https://openairdocs.org/ad/2025-14-08): Turbine Section · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Aug 25, 2025
- [AD 2025-04-12](https://openairdocs.org/ad/2025-04-12): Turbine Section · CFM International LEAP-1A23, LEAP-1A24, LEAP-1A24E1 and 24 more. Effective Apr 8, 2025
- [AD 2024-25-02](https://openairdocs.org/ad/2024-25-02): Turbine Engine Compressor Section · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Feb 12, 2025
- [AD 2023-07-11](https://openairdocs.org/ad/2023-07-11): Turbine Engine Compressor Section · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Jun 13, 2023
- [AD 2022-17-02](https://openairdocs.org/ad/2022-17-02): Turbine Engine Accessory Drive · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Oct 20, 2022
- [AD 2022-11-02](https://openairdocs.org/ad/2022-11-02): Turbine Engine Compressor Section, Turbine Section · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Jul 8, 2022
- [AD 2021-10-06](https://openairdocs.org/ad/2021-10-06): Engine Controls · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective May 10, 2021
- [AD 2020-06-01](https://openairdocs.org/ad/2020-06-01): Turbine/Turboprop · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Apr 16, 2020
- [AD 2018-20-01](https://openairdocs.org/ad/2018-20-01): Turbine Section · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Dec 17, 2018

Historical (superseded or no longer in force):

- [AD 2023-23-12](https://openairdocs.org/ad/2023-23-12) (historical): Turbine Section · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Jan 16, 2024
- [AD 2019-12-01](https://openairdocs.org/ad/2019-12-01) (historical): Turbine Engine Accessory Drive · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Jul 3, 2019
- [AD 2018-25-09](https://openairdocs.org/ad/2018-25-09) (historical): Engine Controls · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Dec 26, 2018

## Registered aircraft (101, first 50)

- [N300UB](https://openairdocs.org/aircraft/N300UB): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 44506
- [N301UC](https://openairdocs.org/aircraft/N301UC): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 44509
- [N302SA](https://openairdocs.org/aircraft/N302SA): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 2019, S/N 44468
- [N302UD](https://openairdocs.org/aircraft/N302UD): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 44510
- [N302US](https://openairdocs.org/aircraft/N302US): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 68229
- [N303RE](https://openairdocs.org/aircraft/N303RE): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2018, S/N 44447
- [N303RG](https://openairdocs.org/aircraft/N303RG): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2018, S/N 44448
- [N303UE](https://openairdocs.org/aircraft/N303UE): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 68056
- [N304RB](https://openairdocs.org/aircraft/N304RB): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2017, S/N 44463
- [N304UF](https://openairdocs.org/aircraft/N304UF): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 68055
- [N305UG](https://openairdocs.org/aircraft/N305UG): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 44511
- [N306RC](https://openairdocs.org/aircraft/N306RC): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2017, S/N 44465
- [N306SP](https://openairdocs.org/aircraft/N306SP): [Wilmington Trust Co Trustee](https://openairdocs.org/faa-owner/WILMINGTON%20TRUST%20CO%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2021, S/N 44480
- [N306SW](https://openairdocs.org/aircraft/N306SW): [Wilmington Trust Co Trustee](https://openairdocs.org/faa-owner/WILMINGTON%20TRUST%20CO%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2021, S/N 44488
- [N306UH](https://openairdocs.org/aircraft/N306UH): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 44512
- [N307TA](https://openairdocs.org/aircraft/N307TA): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2023, S/N 67988
- [N307UJ](https://openairdocs.org/aircraft/N307UJ): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 44513
- [N308RD](https://openairdocs.org/aircraft/N308RD): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2017, S/N 44446
- [N308TB](https://openairdocs.org/aircraft/N308TB): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2023, S/N 67989
- [N308UK](https://openairdocs.org/aircraft/N308UK): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 68113
- [N308VR](https://openairdocs.org/aircraft/N308VR): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2026, S/N 44535
- [N309UL](https://openairdocs.org/aircraft/N309UL): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 44515
- [N310RF](https://openairdocs.org/aircraft/N310RF): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2018, S/N 44451
- [N310UM](https://openairdocs.org/aircraft/N310UM): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 44514
- [N311UN](https://openairdocs.org/aircraft/N311UN): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 68194
- [N313SB](https://openairdocs.org/aircraft/N313SB): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 2019, S/N 44469
- [N313UR](https://openairdocs.org/aircraft/N313UR): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 68228
- [N313VA](https://openairdocs.org/aircraft/N313VA): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 68111
- [N314RH](https://openairdocs.org/aircraft/N314RH): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2018, S/N 44455
- [N314UT](https://openairdocs.org/aircraft/N314UT): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 68361
- [N314VB](https://openairdocs.org/aircraft/N314VB): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2026, S/N 68112
- [N315RJ](https://openairdocs.org/aircraft/N315RJ): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2018, S/N 44449
- [N315SD](https://openairdocs.org/aircraft/N315SD): [Wilmington Trust Co Trustee](https://openairdocs.org/faa-owner/WILMINGTON%20TRUST%20CO%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2020, S/N 44470
- [N315UA](https://openairdocs.org/aircraft/N315UA): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2024, S/N 44508
- [N315UU](https://openairdocs.org/aircraft/N315UU): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 68362
- [N315VC](https://openairdocs.org/aircraft/N315VC): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2026, S/N 69214
- [N316RK](https://openairdocs.org/aircraft/N316RK): [Wilmington Trust Co Trustee](https://openairdocs.org/faa-owner/WILMINGTON%20TRUST%20CO%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2018, S/N 44450
- [N316SE](https://openairdocs.org/aircraft/N316SE): [Wilmington Trust Co Trustee](https://openairdocs.org/faa-owner/WILMINGTON%20TRUST%20CO%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2020, S/N 44472
- [N316UV](https://openairdocs.org/aircraft/N316UV): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 68108
- [N316VD](https://openairdocs.org/aircraft/N316VD): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2026, S/N 69423
- [N317UW](https://openairdocs.org/aircraft/N317UW): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 68456
- [N317VE](https://openairdocs.org/aircraft/N317VE): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2026, S/N 69520
- [N318TD](https://openairdocs.org/aircraft/N318TD): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2023, S/N 68114
- [N318UX](https://openairdocs.org/aircraft/N318UX): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 68109
- [N319TE](https://openairdocs.org/aircraft/N319TE): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2023, S/N 68099
- [N319UY](https://openairdocs.org/aircraft/N319UY): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2025, S/N 68110
- [N319VF](https://openairdocs.org/aircraft/N319VF): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2026, S/N 44534
- [N320TF](https://openairdocs.org/aircraft/N320TF): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2023, S/N 68100
- [N320VG](https://openairdocs.org/aircraft/N320VG): [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2026, S/N 44527
- [N321RL](https://openairdocs.org/aircraft/N321RL): [Wilmington Trust Co Trustee](https://openairdocs.org/faa-owner/WILMINGTON%20TRUST%20CO%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2018, S/N 44452

All 101: https://openairdocs.org/engine/cfm-international-leap-1b25/aircraft.md

## NTSB investigations (2)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DCA25LA275](https://openairdocs.org/ntsb/DCA25LA275), Jul 26, 2025: Boeing 737-8 (N306SW), Denver, CO, substantial damage. Probable cause: The failure of the airplane’s left main landing gear tires and wheels during the takeoff roll due to the thermal relief plugs melting and releasing tire pressure, which resulted in abnormal airplane…
- [NTSB DCA23LA050](https://openairdocs.org/ntsb/DCA23LA050), Nov 10, 2022: Boeing 737-8 (N316SE), Miami, FL, no damage. Probable cause: An encounter with convective turbulence during descent.

## FAA accident and incident reports

None matched to aircraft with this engine model.

## Service difficulty reports (20)

As reported by operators and repair stations, by the model named in the report.

- [SDR AALA202605041439](https://openairdocs.org/sdr/AALA202605041439), May 3, 2026: ACCELEROMETER. FAULTED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO NR 1 ENGINE HIGH VIBRATION ON CLIMB OUT SAW AS MUCH AS 4.3 ON THE GAUGE. AIRCRAFT AIR INTERRUPTED BACK T
- [SDR AALA202605043320](https://openairdocs.org/sdr/AALA202605043320), May 2, 2026: ENGINE. OVERTEMP. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO NR 2 ENGINE OVERHEAT LIGHT ILLUMINATED ON CLIMB OUT. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY 
- [SDR AALA202605073320](https://openairdocs.org/sdr/AALA202605073320), May 2, 2026: HEAT SHIELD. TORN. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ENGINE NUMBER 2 OVERHEAT LIGHT ILLUMINATED ON CLIMB OUT. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SA
- [SDR AALA202604219608](https://openairdocs.org/sdr/AALA202604219608), Apr 19, 2026: SHUTOFF VALVE. FAILED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ENGINE NUMBER 2 ANTI-ICE CAUTION LIGHT ILLUMINATED. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT DFW. REMO
- [SDR AALA202602042003](https://openairdocs.org/sdr/AALA202602042003), Feb 3, 2026: ENGINE. SPARKS. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: INFLIGHT, SPARKS COMING OUT OF RIGHT WING PANEL ADJACENT TO ENGINE NUMBER 2 PYLON AFT OF ENGINE NACELLE
- [SDR AALA202510309430](https://openairdocs.org/sdr/AALA202510309430), Oct 27, 2025: SHUTOFF VALVE. FAILED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: BLLED LIGHT APPEARED FOR LEFT ENGINE BLEED AIR, DIZZINESS AND POSSIBLE HYPOXIA. AIRCRAFT DIVERTED TO AN
- [SDR AALA202510307135](https://openairdocs.org/sdr/AALA202510307135), Oct 27, 2025: VALVE. FAILED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: BLLED LIGHT APPEARED FOR LEFT ENGINE BLEED AIR, DIZZINESS AND POSSIBLE HYPOXIA. AIRCRAFT DIVERTED TO AN
- [SDR AALA202510220570](https://openairdocs.org/sdr/AALA202510220570), Oct 21, 2025: ENGINE. VIBRATION. AIRCRAFT WAS GROUNDED, AN EMERGENCY WAS DECLARED DUE TO: DURING CLIMB NUMBER 1 ENGINE VIBRATION BEGAN TO SPIKE INTO ABNORMAL RANGE. AIRCRAFT AIR INTERRUPTED BAC
- [SDR AALA202510097292](https://openairdocs.org/sdr/AALA202510097292), Oct 8, 2025: ANTI-ICE VALVE. FAILED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: ENGINE 1 ANT-ICE FAULT LIGHT ILLUMINATED IN THE CLIMB WHEN SELECTED TO ON. AIRCRAFT AIR INTERRUPTED
- [SDR AALA202510108748](https://openairdocs.org/sdr/AALA202510108748), Oct 8, 2025: GUIDE VANE. CONTAMINATED. AIRCRAFT WAS GROUNDED: AN EMERGENCY DECLARED DUE TO ON TAKEOFF HIT A BIRD WITH NR 1 ENG, THEN ENCOUNTERED A STRONG BURNING ODOR IN FLT DECK. ACFT AIR INTERRUPTE
- [SDR AALA202510103742](https://openairdocs.org/sdr/AALA202510103742), Oct 8, 2025: GUIDE VANE. CONTAMINATED. AIRCRAFT WAS GROUNDED: AN EMERGENCY DECLARED DUE TO: ON TAKEOFF HIT A BIRD WITH THE NR 1 ENGINE, ENCOUNTERED A STRONG BURNING ODOR IN FLT DECK. ACFT AIR INTERRU
- [SDR AALA202510107492](https://openairdocs.org/sdr/AALA202510107492), Oct 8, 2025: GUIDE VANE. CONTAMINATED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ON TAKEOFF HIT A BIRD WITH THE NUMBER 1 ENGINE THEN ENCOUNTERED A STRONG BURNING ODOR IN THE FLIGHT DEC
- [SDR AALA202510109652](https://openairdocs.org/sdr/AALA202510109652), Oct 8, 2025: GUIDE VANE. CONTAMINATED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ON TAKEOFF HIT A BIRD WITH THE NUMBER 1 ENGINE THEN ENCOUNTERED A STRONG BURNING ODOR IN THE FLIGHT DEC
- [SDR AALA202504237927](https://openairdocs.org/sdr/AALA202504237927), Apr 22, 2025: O-RING. CUT. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: LOST ABOUT 1QT OF OIL PER 15-20 MIN IN FLIGHT ON NUMBER 1 ENGINE; AIRCRAFT DIVERTED TO AND LANDED SAFEL
- [SDR AALA202501240507](https://openairdocs.org/sdr/AALA202501240507), Jan 12, 2025: OIL SYSTEM. CONTAMINATED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: FOLLOWING THE PREVIOUS WRITE UP REGARDING THE LOSS OF HYDRAULIC SYSTEM-B (AALA202501136707), AN ENGINE 
- [SDR AALA202501246707](https://openairdocs.org/sdr/AALA202501246707), Jan 12, 2025: OIL FILTER. CONTAMINATED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: FOLLOWING THE PREVIOUS WRITE UP REGARDING THE LOSS OF HYDRAULIC SYSTEM-B (AALA202501136707), AN ENGINE 
- [SDR AALA202405291197](https://openairdocs.org/sdr/AALA202405291197), May 24, 2024: OIL CAP. UNSECURE. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: OIL QUANTITY KEPT DECREASING UNTIL IT REACHED ZERO; AIRCRAFT DIVERTED TO AND LANDED SAFELY AT MYR. REMO
- [SDR AALA202212196876](https://openairdocs.org/sdr/AALA202212196876), Dec 17, 2022: ANTI-ICE VALVE. FAULTED. AIRCRAFT WAS GROUNDED: REJECTED TAKEOFF AT APPROXIMATELY 60 KNOTS DUE TO ILLUMINATION OF ANTI ICE LIGHT ON RIGHT SIX PACK. AIRCRAFT WEIGHT 164,400 LBS. ENGINE A
- [SDR AALA202212199746](https://openairdocs.org/sdr/AALA202212199746), Dec 17, 2022: ANTI-ICE VALVE. FAULTED. AIRCRAFT WAS GROUNDED: REJECTED TAKEOFF AT APPROXIMATELY 60 KNOTS DUE TO ILLUMINATION OF ANTI ICE LIGHT ON RIGHT SIX PACK. AIRCRAFT WEIGHT 164,400 LBS. ENGINE A
- [SDR AALA202204122772](https://openairdocs.org/sdr/AALA202204122772), Apr 4, 2022: ENGINE. FAULTY. AIRCRAFT WAS GROUNDED: DURING CLIMB, ENGINE #2 OIL FILTER BYPASS ON. CREW SHUTDOWN #2 ENGINE. EMERGENCY DECLARED, FLIGHT RETURNED TO MIA, LANDING SAFELY. **SUPP

## PMA parts (OpenAirDocs) (51, first 50)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first.

- [2525M65P02KT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139075595620261008134816.0001): Gasket, Seal Flange. Turbine Kinetics Inc., A HEICO Aerospace Company · PMA PQ0816NE · Replaces 2525M65P02 · Sep 29, 2026
- [J1438P017JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125869095620260806140229.0001): Packing, Preformed. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces J1438P017 · Jul 17, 2026
- [2534M51P02JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID119152874220260506211139.0001): Gasket Seal. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 2534M51P02 · Apr 22, 2026
- [115E7192G6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123339252020251230230618.0001): Electronic, Engine Control. BAE System Controls, Inc. · PMA PQ2603CE · Replaces 2474M64P07 · Dec 29, 2025
- [J1432P11JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103019986120240328193901.0001): Clamp-Loop, Cushion. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces J1432P11 · Mar 25, 2024
- [117088WD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID121051510320260922172505.0001): Bearing, Ball,Annular. Wencor LLC (formerly Dixie Aerospace LLC) · PMA PQ1630CE · Replaces 117088 · Sep 20, 2022
- [2085M48P01JP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164522741920220916112145.0001): Seal Assembly. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces 2085M48P01 · Jun 1, 2022
- [2085M48P07JP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156248956820220916112146.0001): Seal Assembly. Jet Parts Engineering Inc · PMA PQ1739CE · Replaces 2085M48P07 · Jun 1, 2022
- [ER9627G01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID160171705720220615161902.0001): Surface Cooler, Lube Left Hand. Unison Industries LLC - Dayton · PMA PQ3943CE · Replaces 364-093-909-0 · May 12, 2022
- [ER9621G01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID106253717820220615161900.0001): Surface Cooler, IDG Right Hand. Unison Industries LLC - Dayton · PMA PQ3943CE · Replaces 364-094-006-0 · May 12, 2022
- [ER9625G01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105721329920220615161901.0001): Surface Cooler, Lube Right Hand. Unison Industries LLC - Dayton · PMA PQ3943CE · Replaces 364-093-809-0 · May 12, 2022
- [ER9623G01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105207264020220615161901.0001): Surface Cooler, IDG Left Hand. Unison Industries LLC - Dayton · PMA PQ3943CE · Replaces 364-094-106-0 · May 12, 2022
- [PT9902-261-40100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID739082468320220303144643.0001): Sensor, Oil Pressure, Temperature. Ametek Aerospace and Defense, A Division of AMETEK Inc. · PMA PQ0226NE · Replaces 362-074-312-0 · Mar 1, 2022
- [J626P04QQ](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID576404197420210921145842.0001): Nut, Self-Locking. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces J626P04 · Aug 17, 2021
- [KTJ1411P04](https://drs.faa.gov/browse/excelExternalWindow/185E8C3E8B50C9058625862200594C38.0001): Nut. Turbine Kinetics Inc, A HEICO Aerospace Company · PMA PQ0816NE · Replaces General Electric P/N J1411P04 · Nov 3, 2020
- [8910-344](https://drs.faa.gov/browse/excelExternalWindow/76FD3E8BF19ADAD1862585990042F128.0001): Valve, Transient Bleed. Woodward Inc · PMA PQ2020CE · Replaces CFM International S.A. P/N 2496M38P07 · Jun 9, 2020
- [2628M87P15](https://drs.faa.gov/browse/excelExternalWindow/3FEED477B39DE98486258596003D28B4.0001): EEC PHM SOFTWARE. BAE System Controls, Inc. · PMA PQ2603CE · Replaces 2628M87P15 S/W Version PL1B0673 · Apr 2, 2020
- [PT9902-261-40077](https://drs.faa.gov/browse/excelExternalWindow/F0F6681CBADFF8F786258590004116C0.0001): Sensor, Oil Pressure, Temperature. Ametek Aerospace and Defense, A Division of AMETEK Inc. · PMA PQ0226NE · Replaces 362-074-311-0 · Dec 17, 2019
- [PD9902-72.5-40072](https://drs.faa.gov/browse/excelExternalWindow/5A41D1E88676DB84862585900041175D.0001): Sensor, Oil Filter Differential Pressure. Ametek Aerospace and Defense, A Division of AMETEK Inc. · PMA PQ0226NE · Replaces 362-074-510-0 · Dec 17, 2019
- [2628M87P12](https://drs.faa.gov/browse/excelExternalWindow/D3F9880384152E588625847400613DDD.0001): EEC PHM Software. BAE System Controls, Inc. · PMA PQ2603CE · Replaces 2628M87P12 S/W Version PL1B0652 · Feb 5, 2019
- [2628M86P11](https://drs.faa.gov/browse/excelExternalWindow/BD9279FECDA13A538625845F0062D641.0001): EEC AS Software L1B0650. BAE System Controls, Inc. · PMA PQ2603CE · Replaces 2628M86P11 S/W Version L1B0650 · Sep 18, 2018
- [2628M87P11](https://drs.faa.gov/browse/excelExternalWindow/38339A46B2DEF8DE8625845F0062D62E.0001): EEC PHM Software. BAE System Controls, Inc. · PMA PQ2603CE · Replaces 2628M87P11 S/W Version PL1B0650 · Sep 18, 2018
- [9048156WE](https://drs.faa.gov/browse/excelExternalWindow/7FF7B8CC4AAC15DC86258345005A54F3.0001): Seal. Wencor LLC · PMA PQ1370NM · Replaces 9048156 · Jul 30, 2018
- [6120066E04](https://drs.faa.gov/browse/excelExternalWindow/2B91B8439B8CB9C3862582DD0071D86A.0001): Nozzle, Fuel. Advanced Atomization Technologies, LLC · PMA PQ0595NE · Replaces 2085M31G04 · Jun 5, 2018
- [2628M86P10](https://drs.faa.gov/browse/excelExternalWindow/BADBD81DA0F2F352862582C200672633.0001): EEC AS Software L1B0610. BAE System Controls, Inc. · PMA PQ2603CE · Replaces 2628M86P10 S/W Version L1B0610 · May 29, 2018
- [2628M87P10](https://drs.faa.gov/browse/excelExternalWindow/47870E6EE6A78432862582C200672631.0001): EEC PHM Software. BAE System Controls, Inc. · PMA PQ2603CE · Replaces 2628M87P10 S/W Version PL1B0610 · May 29, 2018
- [8910-309](https://drs.faa.gov/browse/excelExternalWindow/9FEA7350997D7973862582DA006FD850.0001): Valve, Low Pressure Turbine Active clearance control. Woodward Inc · PMA PQ2020CE · Replaces 2762M01P01 · Mar 12, 2018
- [8062-1180](https://drs.faa.gov/browse/excelExternalWindow/31C7291D89E88939862582DA006FD84D.0001): Control Split Unit. Woodward Inc · PMA PQ2020CE · Replaces 2762M00P01 · Mar 12, 2018
- [504690-1](https://drs.faa.gov/browse/excelExternalWindow/CCF1D2CC7C72965F862581B5006D4C2B.0001): Insert, Threaded. Unison Industries LLC · PMA PQ0620NE · Replaces 2121M91P01 · Oct 1, 2017
- [504910-1](https://drs.faa.gov/browse/excelExternalWindow/76328178F0C6E83C862581B5006D4A61.0001): Rotor, Alternator. Unison Industries LLC · PMA PQ0620NE · Replaces 2122M27P01 · Oct 1, 2017
- [504909-1](https://drs.faa.gov/browse/excelExternalWindow/6F3CF19A33717330862581B5006D4996.0001): Stator, Alternator. Unison Industries LLC · PMA PQ0620NE · Replaces 2122M28P01 · Oct 1, 2017
- [115E7192G4](https://drs.faa.gov/browse/excelExternalWindow/864A2B6B9BDD10A5862581A10068AB6F.0001): Electronic Engine Control. BAE System Controls, Inc. · PMA PQ2603CE · Replaces 2474M64P05 S/W Version N/A · Sep 12, 2017
- [8910-273](https://drs.faa.gov/browse/excelExternalWindow/7D9B34C5713784388625817F00683ACF.0001): Valve, Start Bleed Booster, Anti-Ice. Woodward Inc · PMA PQ2020CE · Replaces CFM International P/N 2704M79P01 · Jul 30, 2017
- [8100-0091](https://drs.faa.gov/browse/excelExternalWindow/F9B00C21572D8AAE8625817F00683A7F.0001): Actuator, Variable Stator Vane. Woodward Inc · PMA PQ2020CE · Replaces CFM International P/N 2496M37P02 · May 16, 2017
- [115E7192G3](https://drs.faa.gov/browse/excelExternalWindow/AFE82858113785C4862581230051A9DB.0001): ELECTRONIC ENGINE CONTROL. BAE System Controls, Inc. · PMA PQ2603CE · Replaces 2474M64P04 S/W Version N/A · May 16, 2017
- [8100-0051](https://drs.faa.gov/browse/excelExternalWindow/78B17A70660A467F8625817F00683A30.0001): Actuator, Variable Stator Vane. Woodward Inc · PMA PQ2020CE · Replaces CFM International P/N 2496M37P01 · May 16, 2017
- [261807915-0303](https://drs.faa.gov/browse/excelExternalWindow/4B476E5BE7CCA03F862581230051A88E.0001): PRESSURE SUB SYSTEM. BAE System Controls, Inc. · PMA PQ2603CE · Replaces 2674M65P06 S/W Version N/A · May 16, 2017
- [8100-0090](https://drs.faa.gov/browse/excelExternalWindow/48BFC7EC2761DA978625817F00683911.0001): Actuator, Modulated Turbine Cooling. Woodward Inc · PMA PQ2020CE · Replaces CFM International P/N 2496M36P02 · May 16, 2017
- [8062-1151](https://drs.faa.gov/browse/excelExternalWindow/327B9D86D31269CC8625817F006839E0.0001): Control, Split Unit. Woodward Inc · PMA PQ2020CE · Replaces CFM International P/N 2496M35P02 · May 16, 2017
- [6970-126](https://drs.faa.gov/browse/excelExternalWindow/0DF3FDC26A1FBEB38625817F00683990.0001): Pump, Main Fuel. Woodward Inc · PMA PQ2020CE · Replaces CFM International P/N 2566M05P04 · May 16, 2017
- [63278547-1](https://drs.faa.gov/browse/excelExternalWindow/73FE81588372DF74862582A4005E7DCB.0001): Cable, Shaft Override. Honeywell International Inc. · PMA PQ1222NM · Replaces 2584M06P01 · May 14, 2017
- [515278-1](https://drs.faa.gov/browse/excelExternalWindow/E6C229B1A26CAF1B862581210055EE57.0001): Lead, Ignition. Unison Industries · PMA PQ1052CE · Replaces CFM International PN 2570M26P01 · May 8, 2017
- [517212-4](https://drs.faa.gov/browse/excelExternalWindow/B3FB80F2730E7451862581210055EEAD.0001): Igniter. Unison Industries · PMA PQ1052CE · Replaces CFM International PN 2646M08P02 · May 8, 2017
- [515277-1](https://drs.faa.gov/browse/excelExternalWindow/185B3715720869D5862581210055EE03.0001): Lead, Ignition. Unison Industries · PMA PQ1052CE · Replaces CFM International PN 2570M25P01 · May 8, 2017
- [515055-2](https://drs.faa.gov/browse/excelExternalWindow/092E8EF6434511F7862581210055ED67.0001): Exciter, Ignition. Unison Industries · PMA PQ1052CE · Replaces CFM International PN 2569M32P02 · May 8, 2017
- [APT-483B-1250-500A](https://drs.faa.gov/browse/excelExternalWindow/AF5ECFADB8BFC2D486258116006A58E3.0001): Transducer, Manifold Pressure - Fuel. Kulite Semiconductor Products Inc · PMA PQ2047NE · Replaces 2603M28P02 · May 3, 2017
- [APT-482B-1250-60D](https://drs.faa.gov/browse/excelExternalWindow/8C0F14530D2DC92E86258116006A5939.0001): Transducer, Differential Pressure - Fuel. Kulite Semiconductor Products Inc · PMA PQ2047NE · Replaces 2492M60P03 · May 3, 2017
- [APT-482A-1250-60D](https://drs.faa.gov/browse/excelExternalWindow/6D2F108667ADA9FA86258116006A57F0.0001): Transducer, Differential Pressure - Fuel. Kulite Semiconductor Products Inc · PMA PQ2047NE · Replaces 2492M60P02 · May 3, 2017
- [2628M86P07](https://drs.faa.gov/browse/excelExternalWindow/EFD322CB50CA42518625811600578733.0001): EEC AS Software. BAE System Controls, Inc. · PMA PQ2603CE · Replaces 2628M86P07, S/W Version L1B0450 (4.5) · May 1, 2017
- [2628M87P07](https://drs.faa.gov/browse/excelExternalWindow/CE85042B18CBACBA86258116005786E8.0001): EEC PHM Software. BAE System Controls, Inc. · PMA PQ2603CE · Replaces 2628M87P07, S/W Version PL1B0450 (4.5) · May 1, 2017

All of them: https://openairdocs.org/engine/cfm-international-leap-1b25/pma.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.