# SDR YENA2025040900372

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 6, 2025
- Submitted: April 9, 2025
- Operation: Air carrier
- Aircraft: [N4080J](https://openairdocs.org/aircraft/N4080J), 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: 11861
- Aircraft time: 3,836 hours, 576 cycles
- System (JASC): [2920 · Hydraulic System, Auxiliary](https://openairdocs.org/jasc/2920)
- Part: Pressure Switch
- Condition: Faulted
- Location: Rat
- Stage of operation: IN
- 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/YENA2025040900372

## Discrepancy

FLT#424, LAX-JFK. (ETOPS) 'HYD RAT FAULT; REMOVED AND REPLACED PRESSURE SWITCH IAW AMM 29-22-53, OPS CHECK OK.'

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.