# SDR YENA2021100100637

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 30, 2021
- Submitted: October 1, 2021
- Operation: Air carrier
- Aircraft: [N4058J](https://openairdocs.org/aircraft/N4058J), registered now
- Make and model: Airbus A321-271N
- Registry model: [Airbus A321-271N](https://openairdocs.org/model/airbus-a321-271n) (OpenAirDocs)
- Aircraft serial: 10619
- Aircraft time: 25 hours, 7 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Condition: Malfunctioned
- Location: Nr 2 Engine
- Part time: 25 hours, 7 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2021100100637

## Discrepancy

FLT # 2324, LAX-JFK. AIRCRAFT HAS REPORTED IN AIRMAN AN ENG 2 FIRE LOOP A FAULT IN CRUISE WITH ASSOCIATED "CHECK ENG 2 FIRE LOOP A AGB" CFDS FAULT; REF WO 1137418 NR-0001 TSI ENG 2 FIRE LOOP A FAULT. T/S PER TSM 26-12-00-810-858-A RESISTANCE VALUE OF CORE AGB LOOP A FIRE DETECTOR (4002WD1) WITHIN LIMITS 6845OHM BETWEEN PINS A AND C. R+R 4002WD1 FIRE DETECTOR PER AMM 26-12-1 AS PRECAUTIONARY PER TSI.

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