# SDR YENA2026042100419

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2026
- Submitted: April 21, 2026
- Operation: Air carrier
- Aircraft: [N4080J](https://openairdocs.org/aircraft/N4080J), 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: 11861
- Aircraft time: 8,001 hours, 1,226 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Part number: 636D0015509
- Part serial: 63129
- Condition: Faulted
- Location: Nr 1
- Part time: 741 hours, 118 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/YENA2026042100419

## Discrepancy

FLT#1107, JFK-LHR. (ETOPS) "ENG 1 LOOP A FAULT ( ENGINE FIRE DETECTION SYSTEMS 1) LOOP A ).   ENG 1 AGB LOOP A WAS REPLACED ON 4/23/26 AND HAS NOT FAULTED SINCE. OPS TEST PERFORMED IAW AMM 26-12-17, TEST OK NO FAULTS NOTED.

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