# SDR YENA2025060900570

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2025
- Submitted: June 9, 2025
- Operation: Air carrier
- Aircraft: [N2151J](https://openairdocs.org/aircraft/N2151J), 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: 11336
- Aircraft time: 7,540 hours, 1,382 cycles
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: Valve
- Part number: 4063160823
- Part serial: 0458834
- Condition: Faulted
- Location: Crossbleed
- Part time: 75,130 hours, 2,710 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2025060900570

## Discrepancy

FLT#478, LAS-BOS. (ETOPS).  AIR XBLEED FAULT TWICE AFTER RESET. ( CROSS BLEED VALVE ) MULTIPLE WRITE UPS.  REMOVED AND REPLACED CROSSBLEED VALVE (6HV) IAW AMM 36-12-52. NO LEAKS NOTED, OPS CHECK NORMAL. THIS CLEARS MDDR # 584831, MX-4 UPDATED. PLACARD REMOVED.

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