# SDR YENA2023051900544

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 17, 2023
- Submitted: May 19, 2023
- Operation: Air carrier
- Aircraft: [N4022J](https://openairdocs.org/aircraft/N4022J), registered now
- Make and model: Airbus A321-271N
- Registry model: [Airbus A321-271N](https://openairdocs.org/model/airbus-a321-271n) (OpenAirDocs)
- Aircraft time: 6,410 hours, 942 cycles
- System (JASC): [2600 · Fire Protection System](https://openairdocs.org/jasc/2600)
- Part: Fdu
- Part number: 9090120201
- Part serial: A0062147
- Condition: Failed
- Location: 2wd2
- Part time: 6,417 hours, 943 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2023051900544

## Discrepancy

FLT#2104, BOS-LGW. (ETOPS) 'ENGINE 2 FIRE LOOP A FAULT ( ENGINE FIRE DETECTION SYSTEMS 1) LOOP A ); REMOVED AND REPLACED FDU #2 AS PER AMM 26-12-34 AND PER UPPER LEADERSHIP. OP'S CHECK IS GOOD. MX-4 UPDATED. PLACARD REMOVED. MDDR CLEARED.'

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