# SDR YENA2025123101315

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 2025
- Submitted: January 7, 2026
- Operation: Air carrier
- Aircraft: [N2188J](https://openairdocs.org/aircraft/N2188J), 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: 11955
- Aircraft time: 6,297 hours, 1,180 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fdu
- Part number: 9090120201
- Part serial: A0062420
- Condition: Faulted
- Location: Nr 1 Engine
- Part time: 12,937 hours, 2,073 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/YENA2025123101315

## Discrepancy

FLT 1487 LAX-BOS (ETOPS). " ENG 1 FIRE LOOP A FAULT (ENGINE FIRE DETECTION SYSTEMS 1) LOOP A).  REMOVED AND REPLACED  FDU NR 1 (2WD1)IN REF W/ AMM 26-12-34, BITE TEST OK, OPC GOOD. REF L/P 4470945 ITEM 1 FOR GROUND VERIFICATION, MX-4 UPDATED, PLACARD RMCD, MDDR CLEARED.

---
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.