# SDR YENA2026092500900

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 23, 2026
- Submitted: September 25, 2026
- Operation: Air carrier
- Aircraft: [N4074J](https://openairdocs.org/aircraft/N4074J), 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: 11354
- Aircraft time: 12,631 hours, 1,926 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Condition: Faulted
- Location: Zone 400
- Stage of operation: TX
- 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/YENA2026092500900

## Discrepancy

FLT 8357, BOS-JFK. (ETOPS) NR 2 ENG FIRE LOOP B FAULT DURING TAXI ( ENGINE FIRE DETECTION SYSTEMS LOOP B ). OPEN

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