# SDR AWXA200100595

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 25, 2001
- Submitted: November 26, 2001
- 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
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Part number: NAS161212
- Condition: Leaking
- Location: Hydraulic Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AWXA200100595

## Discrepancy

CLE - EMERGENCY LANDING - FLT 534 - C - EN ROUTE FROM PHX TO CLE RECEIVED YELLOW HYDRAULIC SYSTEM RESERVOIR LOW LEVEL QUANTITY INDICATION WITH PRESSURE INDICATING NORMAL, 1 HR 30 MIN LATER SYSTEM LOST ALL PRESSURE.  DECLARED EMERGENCY LANDING INTO CLE, LANDING WAS UNEVENTFUL.  MAINTENANCE TROUBLESHOT AND REPLACED DEFECTIVE O-RING ON QUICK DISCONNECT COUPLING AE99116K ON YELLOW SYSTEM HYDRAULIC MANIFOLD.  MAINTENANCE ALSO DISCOVERED NR 2 ENGINE HYDRAULIC PUMP CASE DRAIN FILTER DIFFERENTIAL BUTTON POPPED, AS PRECAUTION REPLACED CASE DRAIN FILTER AND NR 2 ENGINE HYDRAULIC PUMP IAW AMM 29-13-51-401.

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