# SDR YENA2025070800713

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2025
- Submitted: July 8, 2025
- Operation: Air carrier
- Aircraft: [N4048J](https://openairdocs.org/aircraft/N4048J), 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: 10446
- Aircraft time: 14,836 hours, 2,200 cycles
- Engine: Iae PW1133GAJM
- Engine time: 14,930 hours, 3,398 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Valve
- Part number: 70649A010001
- Part serial: 7064904360
- Condition: Failed
- Location: Nr 1 Engine
- Part time: 14,836 hours, 2,200 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2025070800713

## Discrepancy

FLT#1621, LHR-BOS. (ETOPS) 'REMOVED ENG #1 FAN AIR VALVE ASSY IAW AMM 36-11-54-000-803-A; REPLACED ENGINE #1 FAN AIR VALVE DUE TO EXCESSIVE PLAY IN UPPER BEARING PER TASK CARD A3625040-01, AMM TASK 36-11-54. REF LP 4300580 ITEM 1 FOR OPS CHK.'

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