# SDR USAA920070913

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 3, 2007
- Submitted: October 9, 2007
- Operation: Air carrier
- Aircraft: [N625AW](https://openairdocs.org/aircraft/N625AW), registered now
- Make and model: Airbus A320-231
- Registry model: [Airbus A320-231](https://openairdocs.org/model/airbus-industrie-a320-231) (OpenAirDocs)
- Aircraft serial: 064
- Aircraft time: 57,681 hours, 25,861 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Condition: Leaking
- Location: Nr 1 Engine Hcu
- Stage of operation: CR
- 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/USAA920070913

## Discrepancy

PHX - IAH - FLT 274 - THE CREW REPORTED THE A/C LOST GREEN HYDRAULIC SYSTEM WHICH RENDERS NOSE WHEEL STEERING INOP.  THE CREW DECLARED AN EMERGENCY.  THE LANDING WAS UNEVENTFUL AND THE A/C WAS TOWED TO THE GATE.  MX REPLACED THE NR 1 ENGINE HCU DIFFERENTIAL PRESSURE HOUSING O-RING.  OPERATIONAL / LEAK CHECK WAS GOOD.  THE A/C WAS RETURNED TO SERVICE.

---
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.