# SDR YENA2026090400725

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 1, 2026
- Submitted: September 4, 2026
- Operation: Air carrier
- Aircraft: [N4062J](https://openairdocs.org/aircraft/N4062J), 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: 10839
- Aircraft time: 16,412 hours, 2,442 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Transducer
- Part number: 38762272
- Part serial: 2015047138298
- Condition: Failed
- Location: Apu
- Part time: 10,623 hours, 7,824 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/YENA2026090400725

## Discrepancy

FLT 1621, LHR-BOS. (ETOPS)  APU BLEED FAULT ( APU BLEED AIR SUPPLY SYSTEM ).   R & R APU DIFF PRESSURE TRANSDUCER IAW AMM 49-51-16. OPS TEST SATISFACTORY. GROUND VERIFICATION OF APU BLEED IAW AMM 49-00-00 SATISFACTORY. THIS CLEARS MDDR 629063.

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