# SDR YENA2025101401022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 2025
- Submitted: October 14, 2025
- Operation: Air carrier
- Aircraft: [N2157J](https://openairdocs.org/aircraft/N2157J), 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: 11397
- Aircraft time: 8,615 hours, 1,584 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Part number: 636D0015509
- Part serial: 60139
- Condition: Faulted
- Location: Nr 1 Engine
- Part time: 1,082 hours, 198 cycles
- 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/YENA2025101401022

## Discrepancy

FLT#816, SFO-JFK. (ETOPS) "PFR SHOWS ENGINE 1 FIRE LOOP A FAULT.  REMOVED AND REPLACED ENG1 LOOP A FOWARD FIRE/OVERHEAT DETECTOR ( FIN 4002WD1) PER AMM 26-12-17  OPS CHK NORMAL.

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