# SDR YENA2023111701402

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2023
- Submitted: November 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: 1,598 hours, 241 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Valve
- Part number: 70853A010001
- Part serial: 7085305234
- Condition: Failed
- Location: Hot Air
- Stage of operation: UK
- 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/YENA2023111701402

## Discrepancy

FLT#43, JFK-LGW. (ETOPS)  HOT AIR VALVE FAULT ( HOT AIR PRESS REGUL VLV - (N703 AND UP) OPEN POSITION ).   REMOVED AND REPLACED PRESSURE REGUALTING VALVE (14HK) IAW AMM 21-63-52. OPS CHECK GOOD. MO DEFECTS NOTED AT THIS TIME. MDDR CLEARED. MX-4 UPDATED. PLACARD REMOVED.

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