# SDR 637090205

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2005
- Submitted: September 6, 2005
- Operation: Air carrier
- Aircraft: [N509QS](https://openairdocs.org/aircraft/N509QS), registered now
- Make and model: Gulstm GULFSTREAMGV
- Aircraft serial: 637
- Aircraft time: 4,522 hours, 1,537 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Actuator Valve
- Part number: 1159SCH5019
- Part serial: 1378
- Condition: Defective
- Location: Hyd System
- Part time: 4,522 hours, 1,537 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: F, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/637090205

## Discrepancy

L-R AIL HYD OFF WARNING ACTIVATED IN FLIGHT, L - AIL CB POPPED ON GROUND.

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