CFM International LEAP-1B25
101 aircraft on the U.S. register carry a CFM International LEAP-1B25 engine, rated at about 26,786 pounds of thrust. The Boeing 737 is the model most often fitted with it (101 aircraft). The aircraft carrying it were built between 2017 and 2026.
The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as CFM International LEAP-1B25. FAA spelling: LEAP-1B25.
Where they are owner's state
Texas70Delaware27Utah4
Kind of aircraft
Airliners and large jets101 (100%)
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the CFM International LEAP-1B25 the component layer
The design is held under 1 type certificate (E00088EN, held by Cfm International S.A.). The FAA has issued 11 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 20 failure reports with the FAA since 1995, 20 of them in the last ten years.
FAA orders 11 airworthiness directives · newest first
2025-08-252025-14-08 · Turbine Section · engine
2025-04-082025-04-12 · Turbine Section · engine
2025-02-122024-25-02 · Turbine Engine Compressor Section · engine
2023-06-132023-07-11 · Turbine Engine Compressor Section · engine
2022-10-202022-17-02 · Turbine Engine Accessory Drive · engine
2022-07-082022-11-02 · Turbine Engine Compressor Section, Turbine Section · engine
Failure reports 20 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Engine4Guide Vane4Anti-Ice Valve3Shutoff Valve2Accelerometer1Heat Shield1O-Ring1Oil Cap1Oil Filter1Oil System1
Latest reports
2026-05-03Accelerometer: faulted
2026-05-02Engine: overtemp
2026-05-02Heat Shield: torn
2026-04-19Shutoff Valve: failed
2026-02-03Engine: sparks
Certificates and bulletins
E00088ENType certificate held by Cfm International S.A. · 11 models listed · revised April 1, 2026
Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.
Connections how this engine series links to the rest of the register
Fitted to
- Boeing 737 101 with this engine series
Biggest operators
- American Airlines INC 70 of these aircraft
- Wilmington Trust CO Trustee 27 of these aircraft
- Bank Of Utah Trustee 4 of these aircraft
Airworthiness
- FAA orders naming the CFM International LEAP-1B25 11 airworthiness directives
- Failure reports on the CFM International LEAP-1B25 20 reports since 1995
Analytics
These connections as data: /graph/engine/cfm-international-leap-1b25.json · about the eFlight graph.
Aircraft newest certificates first · 101
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N308VR | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-09-30 | ValidFAA registration status code V: Valid registration. All codes |
| N325VM | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-04-28 | ValidFAA registration status code V: Valid registration. All codes |
| N327VP | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-04-27 | ValidFAA registration status code V: Valid registration. All codes |
| N324VL | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-04-21 | ValidFAA registration status code V: Valid registration. All codes |
| N326VN | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-04-17 | ValidFAA registration status code V: Valid registration. All codes |
| N323VK | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-03-31 | ValidFAA registration status code V: Valid registration. All codes |
| N322VJ | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-03-24 | ValidFAA registration status code V: Valid registration. All codes |
| N320VG | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-03-13 | ValidFAA registration status code V: Valid registration. All codes |
| N321VH | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-02-28 | ValidFAA registration status code V: Valid registration. All codes |
| N319VF | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-02-18 | ValidFAA registration status code V: Valid registration. All codes |
| N316VD | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-01-21 | ValidFAA registration status code V: Valid registration. All codes |
| N317VE | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-01-14 | ValidFAA registration status code V: Valid registration. All codes |
| N315VC | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-01-13 | ValidFAA registration status code V: Valid registration. All codes |
| N314VB | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2026-01-12 | ValidFAA registration status code V: Valid registration. All codes |
| N318UX | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-12-17 | ValidFAA registration status code V: Valid registration. All codes |
| N319UY | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-12-09 | ValidFAA registration status code V: Valid registration. All codes |
| N313VA | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-12-08 | ValidFAA registration status code V: Valid registration. All codes |
| N317UW | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-12-05 | ValidFAA registration status code V: Valid registration. All codes |
| N316UV | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-12-01 | ValidFAA registration status code V: Valid registration. All codes |
| N315UU | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-11-24 | ValidFAA registration status code V: Valid registration. All codes |
| N314UT | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-11-18 | ValidFAA registration status code V: Valid registration. All codes |
| N302US | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-11-13 | ValidFAA registration status code V: Valid registration. All codes |
| N313UR | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-10-08 | ValidFAA registration status code V: Valid registration. All codes |
| N812UP | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-10-07 | ValidFAA registration status code V: Valid registration. All codes |
| N311UN | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-08-28 | ValidFAA registration status code V: Valid registration. All codes |
| N310UM | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-07-15 | ValidFAA registration status code V: Valid registration. All codes |
| N308UK | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-06-03 | ValidFAA registration status code V: Valid registration. All codes |
| N309UL | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-05-21 | ValidFAA registration status code V: Valid registration. All codes |
| N307UJ | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-04-22 | ValidFAA registration status code V: Valid registration. All codes |
| N306UH | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-04-09 | ValidFAA registration status code V: Valid registration. All codes |
| N303UE | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-03-31 | ValidFAA registration status code V: Valid registration. All codes |
| N349TV | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-03-31 | ValidFAA registration status code V: Valid registration. All codes |
| N305UG | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-03-18 | ValidFAA registration status code V: Valid registration. All codes |
| N304UF | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-02-20 | ValidFAA registration status code V: Valid registration. All codes |
| N301UC | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-02-11 | ValidFAA registration status code V: Valid registration. All codes |
| N302UD | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-02-11 | ValidFAA registration status code V: Valid registration. All codes |
| N315UA | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-01-29 | ValidFAA registration status code V: Valid registration. All codes |
| N300UB | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-01-24 | ValidFAA registration status code V: Valid registration. All codes |
| N357TY | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2024-12-20 | ValidFAA registration status code V: Valid registration. All codes |
| N356TX | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2024-11-21 | ValidFAA registration status code V: Valid registration. All codes |
| N355TW | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2024-09-11 | ValidFAA registration status code V: Valid registration. All codes |
| N348TU | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2024-06-27 | ValidFAA registration status code V: Valid registration. All codes |
| N344TS | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2024-06-26 | ValidFAA registration status code V: Valid registration. All codes |
| N347TT | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2024-05-20 | ValidFAA registration status code V: Valid registration. All codes |
| N341TR | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-12-28 | ValidFAA registration status code V: Valid registration. All codes |
| N339TP | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-12-21 | ValidFAA registration status code V: Valid registration. All codes |
| N337TN | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-12-11 | ValidFAA registration status code V: Valid registration. All codes |
| N334TL | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-12-01 | ValidFAA registration status code V: Valid registration. All codes |
| N336TM | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-10-11 | ValidFAA registration status code V: Valid registration. All codes |
| N331TK | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-10-06 | ValidFAA registration status code V: Valid registration. All codes |
| N330TJ | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-09-05 | ValidFAA registration status code V: Valid registration. All codes |
| N321TG | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-08-22 | ValidFAA registration status code V: Valid registration. All codes |
| N322TH | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-08-02 | ValidFAA registration status code V: Valid registration. All codes |
| N319TE | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-07-25 | ValidFAA registration status code V: Valid registration. All codes |
| N328TC | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-07-06 | ValidFAA registration status code V: Valid registration. All codes |
| N307TA | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-07-05 | ValidFAA registration status code V: Valid registration. All codes |
| N343SY | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-06-27 | ValidFAA registration status code V: Valid registration. All codes |
| N320TF | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-06-26 | ValidFAA registration status code V: Valid registration. All codes |
| N318TD | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-06-22 | ValidFAA registration status code V: Valid registration. All codes |
| N308TB | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-05-31 | ValidFAA registration status code V: Valid registration. All codes |
| N342SX | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2023-05-26 | ValidFAA registration status code V: Valid registration. All codes |
| N306SW | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2021-12-07 | ValidFAA registration status code V: Valid registration. All codes |
| N341SV | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2021-03-20 | ValidFAA registration status code V: Valid registration. All codes |
| N338ST | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2021-02-02 | ValidFAA registration status code V: Valid registration. All codes |
| N335SN | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2021-01-28 | ValidFAA registration status code V: Valid registration. All codes |
| N334SM | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2021-01-27 | ValidFAA registration status code V: Valid registration. All codes |
| N336SR | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2021-01-26 | ValidFAA registration status code V: Valid registration. All codes |
| N306SP | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2021-01-13 | ValidFAA registration status code V: Valid registration. All codes |
| N329SL | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2020-12-31 | ValidFAA registration status code V: Valid registration. All codes |
| N326SJ | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2020-12-30 | ValidFAA registration status code V: Valid registration. All codes |
| N327SK | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2020-12-30 | ValidFAA registration status code V: Valid registration. All codes |
| N324SH | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2020-12-29 | ValidFAA registration status code V: Valid registration. All codes |
| N339SU | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2020-12-23 | ValidFAA registration status code V: Valid registration. All codes |
| N378SC | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2020-12-23 | ValidFAA registration status code V: Valid registration. All codes |
| N315SD | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2020-12-17 | ValidFAA registration status code V: Valid registration. All codes |
| N316SE | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2020-12-15 | ValidFAA registration status code V: Valid registration. All codes |
| N323SG | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2020-12-10 | ValidFAA registration status code V: Valid registration. All codes |
| N302SA | Boeing 737-8 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2019-03-06 | ValidFAA registration status code V: Valid registration. All codes |
| N313SB | Boeing 737-8 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2019-02-28 | ValidFAA registration status code V: Valid registration. All codes |
| N343RY | Boeing 737-8 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2019-02-13 | ValidFAA registration status code V: Valid registration. All codes |
| N342RX | Boeing 737-8 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2019-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N341RW | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2019-01-30 | ValidFAA registration status code V: Valid registration. All codes |
| N350RV | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2019-01-24 | ValidFAA registration status code V: Valid registration. All codes |
| N335RT | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2018-12-26 | ValidFAA registration status code V: Valid registration. All codes |
| N336RU | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2018-12-17 | ValidFAA registration status code V: Valid registration. All codes |
| N338RS | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
None on file | 2018-11-07 | ValidFAA registration status code V: Valid registration. All codes |
| N328RR | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2018-09-24 | ValidFAA registration status code V: Valid registration. All codes |
| N326RP | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2018-09-04 | ValidFAA registration status code V: Valid registration. All codes |
| N324RN | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2018-08-25 | ValidFAA registration status code V: Valid registration. All codes |
| N323RM | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2018-07-13 | ValidFAA registration status code V: Valid registration. All codes |
| N321RL | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2018-06-29 | ValidFAA registration status code V: Valid registration. All codes |
| N316RK | Boeing 737-8 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 2018-06-07 | ValidFAA registration status code V: Valid registration. All codes |
| N315RJ | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2018-05-18 | ValidFAA registration status code V: Valid registration. All codes |
| N314RH | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2018-05-11 | ValidFAA registration status code V: Valid registration. All codes |
| N303RG | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2018-03-26 | ValidFAA registration status code V: Valid registration. All codes |
| N310RF | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2018-03-07 | ValidFAA registration status code V: Valid registration. All codes |
| N303RE | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2018-02-20 | ValidFAA registration status code V: Valid registration. All codes |
| N308RD | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2017-12-22 | ValidFAA registration status code V: Valid registration. All codes |
| N306RC | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2017-12-04 | ValidFAA registration status code V: Valid registration. All codes |
| N304RB | Boeing 737-8 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2017-10-31 | ValidFAA registration status code V: Valid registration. All codes |
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Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 7, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.