# Service difficulty reports: CFM International LEAP-1B25 A list on [CFM International LEAP-1B25](https://openairdocs.org/engine/cfm-international-leap-1b25.md). Newest first. General aviation reporting is voluntary. - [SDR AALA202605041439](https://openairdocs.org/sdr/AALA202605041439.md): Accelerometer · faulted · May 3, 2026 · N321TG · Boeing 7378 · Engine Vibration Analyzer > 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 TO AND LANDED SAFELY AT LAX. REMOVED AND REPLACED TURBINE CENTER FRAME ACCELEROMETER ON NR 1 ENGINE - [SDR AALA202605043320](https://openairdocs.org/sdr/AALA202605043320.md): Engine · overtemp · May 2, 2026 · N328RR · Boeing 7378 · Engine Temperature Indicating System > 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 AT MIA. (OPEN). - [SDR AALA202605073320](https://openairdocs.org/sdr/AALA202605073320.md): Heat Shield · torn · May 2, 2026 · N328RR · Boeing 7378 · Turbine Engine Combustion Section > 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 SAFELY AT MIA. **SUPPLEMENTAL REPORT FOR (AALA202605043320) SUBMITTED 05/04/2026 BY DFW: REMOVED AND R - [SDR AALA202604219608](https://openairdocs.org/sdr/AALA202604219608.md): Shutoff Valve · failed · Apr 19, 2026 · N321TG · Boeing 7378 · Engine Anti-Icing System > 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. REMOVED AND REPLACED (PRSOV)-PRESSURE REGULATOR VALVE, PER AMM 36-11-04-401. PREFORMED OPS AND LEAK CHEC - [SDR AALA202602042003](https://openairdocs.org/sdr/AALA202602042003.md): Engine · sparks · Feb 3, 2026 · N322TH · Boeing 7378 · Engine (Turbine/Turboprop) > 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. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT IAH. (OPEN). - [SDR AALA202510309430](https://openairdocs.org/sdr/AALA202510309430.md): Shutoff Valve · failed · Oct 27, 2025 · N329SL · Boeing 7378 · Pneumatic Distribution System > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: BLLED LIGHT APPEARED FOR LEFT ENGINE BLEED AIR, DIZZINESS AND POSSIBLE HYPOXIA. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT ABQ. REPLACED LEFT HAND ENGINE PRSOV-PRESSURE REGULATOR AND SHUTOFF VALVE (AALA20 - [SDR AALA202510307135](https://openairdocs.org/sdr/AALA202510307135.md): Valve · failed · Oct 27, 2025 · N329SL · Boeing 7378 · Pneumatic Distribution System > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: BLLED LIGHT APPEARED FOR LEFT ENGINE BLEED AIR, DIZZINESS AND POSSIBLE HYPOXIA. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT ABQ. REPLACED LEFT HAND ENGINE PRSOV-PRESSURE REGULATOR AND SHUTOFF VALVE (AALA20 - [SDR AALA202510220570](https://openairdocs.org/sdr/AALA202510220570.md): Engine · vibration · Oct 21, 2025 · N339TP · Boeing 7378 · Engine (Turbine/Turboprop) > AIRCRAFT WAS GROUNDED, AN EMERGENCY WAS DECLARED DUE TO: DURING CLIMB NUMBER 1 ENGINE VIBRATION BEGAN TO SPIKE INTO ABNORMAL RANGE. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT PHL. OPEN - [SDR AALA202510097292](https://openairdocs.org/sdr/AALA202510097292.md): Anti-Ice Valve · failed · Oct 8, 2025 · N313SB · Boeing 7378 · Engine Anti-Icing System > 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 BACK TO AND LANDED SAFELY AT JFK. REMOVED AND REPLACED LEFT HAND ENGINE ANTI-ICE VALVE. PER AMM 30- - [SDR AALA202510108748](https://openairdocs.org/sdr/AALA202510108748.md): Guide Vane · contaminated · Oct 8, 2025 · N342RX · Boeing 7378 · Turbine Engine Air Inlet Section > 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 INTERRUPTED BACK TO & LANDED SAFELY AT MIA. DURING INSPECTION FOUND DAMAGE TO NR 1 ENGINE BLADE PLATFORM & BI - [SDR AALA202510103742](https://openairdocs.org/sdr/AALA202510103742.md): Guide Vane · contaminated · Oct 8, 2025 · N342RX · Boeing 7378 · Turbine Engine Air Inlet Section > 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 INTERRUPTED BACK TO & LANDED SAFELY AT MIA. DURING INSPECTION FOUND DAMAGE TO NR 1 ENG BLADE PLATFORM & B - [SDR AALA202510107492](https://openairdocs.org/sdr/AALA202510107492.md): Guide Vane · contaminated · Oct 8, 2025 · N342RX · Boeing 7378 · Turbine Engine Air Inlet Section > 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 DECK. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT MIA. DURING INSPECTION FOUND DAMAGE TO NUMB - [SDR AALA202510109652](https://openairdocs.org/sdr/AALA202510109652.md): Guide Vane · contaminated · Oct 8, 2025 · N342RX · Boeing 7378 · Turbine Engine Air Inlet Section > 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 DECK. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT MIA. DURING INSPECTION FOUND DAMAGE TO NUMB - [SDR AALA202504237927](https://openairdocs.org/sdr/AALA202504237927.md): O-Ring · cut · Apr 22, 2025 · N308RD · Boeing 7378 · Turbine Engine Oil System > 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 SAFELY AT CLT. PERFORMED TSI, FOUND OIL FILTER CAP O-RING CUT IN HALF. REMOVED AND REPLACED OIL TANK FILL - [SDR AALA202501240507](https://openairdocs.org/sdr/AALA202501240507.md): Oil System · contaminated · Jan 12, 2025 · N338RS · Boeing 7378 · Turbine Engine Oil System > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: FOLLOWING THE PREVIOUS WRITE UP REGARDING THE LOSS OF HYDRAULIC SYSTEM-B (AALA202501136707), AN ENGINE NUMBER 2 OIL FILTER BYPASS MESSAGE ILLUMINATED. AFTER RUNNING THIS ASSOCIATED QRH PROCEDURE FOLLOWIN - [SDR AALA202501246707](https://openairdocs.org/sdr/AALA202501246707.md): Oil Filter · contaminated · Jan 12, 2025 · N338RS · Boeing 7378 · Turbine Engine Oil System > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: FOLLOWING THE PREVIOUS WRITE UP REGARDING THE LOSS OF HYDRAULIC SYSTEM-B (AALA202501136707), AN ENGINE NUMBER 2 OIL FILTER BYPASS MESSAGE ILLUMINATED. AFTER RUNNING THIS ASSOCIATED QRH PROCEDURE FOLLOWIN - [SDR AALA202405291197](https://openairdocs.org/sdr/AALA202405291197.md): Oil Cap · unsecure · May 24, 2024 · N316SE · Boeing 737823 · Turbine Engine Oil System > 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. REMOVE AND REPLACED NUMBER 1 ENGINE OIL CAP. PER AMM 79-11-03. NO LEAKS NOTED AFTER ENGINE RUN. - [SDR AALA202212196876](https://openairdocs.org/sdr/AALA202212196876.md): Anti-Ice Valve · faulted · Dec 17, 2022 · N323SG · Boeing 737823 · Engine Anti-Icing System > 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 ANTI ICE ON FOR TAKEOFF. NO LIGHTS ON RECALL. REMOVED AND REPLACED NUMBER 1 (AALA202212199746) ENGINE - [SDR AALA202212199746](https://openairdocs.org/sdr/AALA202212199746.md): Anti-Ice Valve · faulted · Dec 17, 2022 · N323SG · Boeing 737823 · Engine Anti-Icing System > 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 ANTI ICE ON FOR TAKEOFF. NO LIGHTS ON RECALL. REMOVED AND REPLACED NUMBER 1 (AALA202212199746) ENGINE - [SDR AALA202204122772](https://openairdocs.org/sdr/AALA202204122772.md): Engine · faulty · Apr 4, 2022 · N316RK · Boeing 7378 · Engine (Turbine/Turboprop) > AIRCRAFT WAS GROUNDED: DURING CLIMB, ENGINE #2 OIL FILTER BYPASS ON. CREW SHUTDOWN #2 ENGINE. EMERGENCY DECLARED, FLIGHT RETURNED TO MIA, LANDING SAFELY. **SUPPLEMENTAL REPORT FOR AALA202204052772: REPLACED #2 ENGINE PER JOB CARD 09L71001001. ACCOMPLISHED SATI ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE engine_model_key = 'LEAP1B25' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/engine/cfm-international-leap-1b25/reports --- 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.