# SDR YENA2025101401026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 12, 2025
- Submitted: October 14, 2025
- 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: 9,209 hours, 1,403 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Loop
- Condition: Faulted
- Location: Nr 2 Engine
- 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/YENA2025101401026

## Discrepancy

FLT#8351, BOS-JFK. (ETOPS) "#2 ENG LOOP B FAULT ( ENGINE FIRE DETECTION SYSTEMS 2) LOOP B ).  PERFORMED INSPECTION OF WIRE HARNESS PER TSM 26-12-00 -810-806 A NO DEFECTS NOTED THIS CLEARS MDDR 597097, MX-4 UPDATED, PLACARD REMOVED MCC CONTACTED 79453.

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