# SDR PCAA0304069

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 26, 2003
- Submitted: April 28, 2003
- Operation: Air carrier
- Aircraft: N844EX
- Make and model: Dhav DHC8102
- Aircraft serial: 339
- Aircraft time: 25,551 hours, 28,117 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Condition: Leaking
- Location: Shutoff Valve
- 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/PCAA0304069

## Discrepancy

RIC-PHL FLIGHT 3792.  CREW REPORTED ALL CONTENTS OF NR 1 HYDRAULIC SYSTEM WERE LOST.  EMERGENCY WAS DECLARED.  MAINTENANCE REPLACED AN O-RING ON THE HYDRAULIC SHUT OFF VALVE AND REPLACED THE NR 1 HYDRAULIC PUMP.  CASE DRAIN PRESSURE AND RETURN FILTERS WERE ALSO REPLACED.  HYDRAULIC SYSTEM WAS SERVICED AND BLED.  OPERATION AND LEAK CHECK WAS GOOD.  AIRCRAFT RETURNED TO SERVICE.

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