# SDR YENA2025041100389

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2025
- Submitted: April 11, 2025
- Operation: Air carrier
- Aircraft: [N4058J](https://openairdocs.org/aircraft/N4058J), 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: 10619
- Aircraft time: 13,672 hours, 2,049 cycles
- Engine: Iae PW1133GAJM
- Engine time: 13,672 hours, 2,049 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Part number: 889166
- Part serial: 57263
- Condition: Shorted
- Location: Nr 1 Engine
- Part time: 266 hours, 45 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/YENA2025041100389

## Discrepancy

FLT#2220, LHR -JFK. (ETOPS) 'ENG 1 FIRE LOOP A CAUTION); T/S PER TSM 26-12-00-810-852-A FOUND CORE AGB LOOP A (4002WD1) SHORTED TO SHIELD. REMOVED AND REPLACED ENG 1 CORE AGB LOOP A IAW AMM 26-12-17. FAULT CLEARED. TEST OK.'

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