# SDR USAA2012020800023

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 6, 2012
- Submitted: February 9, 2012
- Operation: Air carrier
- Aircraft: N627AW
- Make and model: Airbus A320-231
- Registry model: [Airbus A320-231](https://openairdocs.org/model/airbus-industrie-a320-231) (OpenAirDocs)
- Aircraft serial: 66
- Aircraft time: 71,928 hours, 32,210 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Check Valve
- Part number: ZCV6412
- Condition: Failed
- Location: Yellow Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2012020800023

## Discrepancy

FLIGHT 660 EN ROUTE FROM PHX TO SNA EXPERIENCED A YELLOW SYSTEM HYDRAULIC FAILURE.  AIRCRAFT RETURNED TO PHX, LANDED WITHOUT INCIDENT AND TAXIED TO GATE UNDER ITS OWN POWER.  MAINTENANCE REPLACED A CRACKED CHECK VALVE 3093GM IAW AIRBUS MAINTENANCE MANUAL 29-13-00.

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