# SDR YENA2026101900987

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2026
- Submitted: October 19, 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: 12,914 hours, 1,967 cycles
- Engine: Iae PW1133GAJM
- Engine time: 11,533 hours, 2,548 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Condition: Faulted
- Location: Zone 400
- 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/YENA2026101900987

## Discrepancy

FLT 1621, LHR-BOS. (ETOPS) ENG NR 2 FIRE LOOP B FAULT ( ENGINE FIRE DETECTION SYSTEMS LOOP B."(SUPPLEMENTAL INFORMATION TO FOLLOW).

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