# SDR YENA2026012800075

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 2026
- Submitted: January 28, 2026
- Operation: Air carrier
- Aircraft: [N4083J](https://openairdocs.org/aircraft/N4083J), 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: 11903
- Aircraft time: 6,783 hours, 1,010 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Condition: Faulted
- Location: Zone 400
- Stage of operation: CL
- 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/YENA2026012800075

## Discrepancy

FLT # 123 JFK -LAX (ETOPS). "ENG #2 FIRE LOOP B FAULT ON CLIMB OUT. ( ENGINE FIRE DETECTION SYSTEMS 2) LOOP B ).; ACCOMPLISHED BITE TEST OF # 2 DDU IAW AMM 26-12-15. OPS CHK NORMAL. MCC NOTIFIED A/C OKAY FOR SVC.

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