# SDR YEN2025F00009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2025
- Submitted: November 17, 2025
- Operation: Air carrier
- Aircraft: [N4074J](https://openairdocs.org/aircraft/N4074J), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 11354
- Aircraft time: 9,559 hours, 1,458 cycles
- Engine: Iae PW1133GJM
- System (JASC): [7700 · Engine Indicating System](https://openairdocs.org/jasc/7700)
- Part: Sensor
- Condition: Faulted
- Location: Engine
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YEN2025F00009

## Discrepancy

FLT#2220, LHR-JFK. (ETOPS) "EXTERNAL POWER WAS INTERRUPTED 3 TIMES, CAUSING  ENGINE SENSOR FAULT TO OCCUR; ENG 1&2 GROUND SCAN DUE MULTIPLE FAILURE MESSAGES, TSM 77-31-00-810-801-A REV 108 FOLLOW UP TO AND INCLUDING STEP 3 ENG GROUND RN CARRIED OUT IAW AMM 71-00-00, POST RUN ENG GROUND SCAN NO MORE FAULTS, A/C OK FOR SERVICE"

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