# SDR YENA2023071700794

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 15, 2023
- Submitted: July 17, 2023
- Operation: Air carrier
- Aircraft: [N4074J](https://openairdocs.org/aircraft/N4074J), registered now
- Make and model: Airbus A321-271N
- Registry model: [Airbus A321-271N](https://openairdocs.org/model/airbus-a321-271n) (OpenAirDocs)
- Aircraft serial: 11354
- Aircraft time: 186 hours, 30 cycles
- System (JASC): [2900 · Hydraulic Power System](https://openairdocs.org/jasc/2900)
- Part: Check Valve
- Part number: ZCV638
- Part serial: 220425204
- Condition: Failed
- Location: 3058gm
- Part time: 186 hours, 30 cycles
- Stage of operation: TX
- 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/YENA2023071700794

## Discrepancy

FLT#44, LGW-JFK. (ETOPS) 'REF L/P 3715099, ITEM 2 (CALT BRAKE FAULT ON ECAM) LOSS OF ACCUMULATOR BRAKE PRESSURE; REF TSM 32-45-00-810-801-A REMOVED AND REPLACED CHECK VALVE IAW AMM 29-00-00. OPS CHECK & LEAK CHECK GOOD. ALL PARAMS NORMAL. PRESSURE HOLDING. A/C OK FOR CONTINUED SERVICE.'

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