# SDR YENA2026032300322

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 20, 2026
- Submitted: March 23, 2026
- 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: 10,058 hours, 1,865 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Part number: 889166
- Part serial: 55505
- Condition: Failed
- Location: Nr 2 Engine
- Part time: 3,016 hours, 573 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2026032300322

## Discrepancy

FLT # 333 BOS-SFO (ETOPS). "ENG 2 FIRE LOOP A FAULT IN FLIGHT ( ENGINE FIRE DETECTION SYSTEMS 1) LOOP A ).; RREMOVED AND REPLACED ENG 2 AGB FIRE DETECTOR LOOP A IAW AMM 26-12-17. OPS CHK GOOD. MCC NOTIFIED. MX-4 UPDATED. PLACARD REMOVED.

---
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.