# SDR HNAA0700287

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2007
- Submitted: December 15, 2007
- Operation: Air carrier
- Aircraft: [N930HA](https://openairdocs.org/aircraft/N930HA), registered now
- Make and model: Dhav DHC8102
- Aircraft serial: 126
- Aircraft time: 49,691 hours, 55,535 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Spoiler Sys
- Part number: 65960
- Part serial: 478
- Condition: Failed
- Location: Nr 2
- Part time: 49,691 hours, 55,535 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA0700287

## Discrepancy

DURING FLIGHT, NR 2 HYDRAULIC SYSTEM BEGAN LOOSING FLUID.  AT 1/2 QT LOSS, SYSTEM ISOLATION VALVE CLOSED TO PREVENT FURTHER LOSS OF FLUID.  LANDING GEAR WAS CYCLED DOWN BEFORE ISOLATION VALVE CLOSED AS A PRECAUTION.  MAINTENANCE FOUND NR 2 ROLL SPOILER UNLOADING VALVE UNSERVICEABLE.  REMOVED AND REPLACED VALVE.  SERVICED HYDRAULIC SYSTEM AND OPS CHECKED AIRCRAFT IAW MAINTENANCE MANUAL PROCEDURES.  CHECKS WERE GOOD.

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