# SDR HALA2014100900167

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2014
- Submitted: October 10, 2014
- Operation: Air carrier
- Aircraft: [N391HA](https://openairdocs.org/aircraft/N391HA), registered now
- Make and model: Airbus A330-243
- Registry model: [Airbus A330-243](https://openairdocs.org/model/airbus-a330-243) (OpenAirDocs)
- Aircraft serial: 1399
- Aircraft time: 7,196 hours, 1,097 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Condition: Failed
- Location: Hyd System
- Stage of operation: CL
- 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/HALA2014100900167

## Discrepancy

HYD YELLOW SYS QUANTITY LOW.  FOUND YELLOW ENGINE MOUNTED HYD PULSATION DAMPER O-RING LEAKING.  REPLACED O-RING IAW AMM 29-13-54-400-801-A.  ENGINE IDLE RUN. NO LEAKS NOTED. CYCLED FLIGHT CONTROLS. OPS CHECK GOOD. HYD FLUID SERVICED-RESERVOIR STILL HAD FLUID WHEN A/C BLOCKED  
IN.  ACFT OK FOR SERVICE.

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