# SDR CALA2013082990852

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2013
- Submitted: August 30, 2013
- Operation: Air carrier
- Aircraft: [N801UA](https://openairdocs.org/aircraft/N801UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 686
- Aircraft time: 54,601 hours, 21,978 cycles
- Engine: Iae V2522A5
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Valve
- Part number: 3031863001
- Part serial: 158
- Condition: Leaking
- Location: Hydraulic Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2013082990852

## Discrepancy

'Y' SYSTEM LOW PRESSURE MESSAGE, RETURN TO FIELD.  REPLACED POWER TRANSFER UNIT MANIFOLD 2-WAY VALVE.  OPERATIONS & LEAK CHECKED OKAY.

---
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.