# SDR N93A22022008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 2008
- Submitted: February 25, 2008
- Operation: Air carrier
- Aircraft: [N518QS](https://openairdocs.org/aircraft/N518QS), registered now
- Make and model: Gulstm GVSPG550
- Aircraft serial: 5075
- Aircraft time: 2,948 hours, 998 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Control Valve
- Part number: 1159SCH23135
- Part serial: 3001
- Condition: Failed
- Location: Mlg
- Stage of operation: LD
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/N93A22022008

## Discrepancy

DURING GEAR EXTENSION FOR LANDING, NOSE LANDING GEAR FAILED TO EXTEND DURING FIRST ATTEMPT.  SECOND ATTEMPT WAS SUCCESSFUL.  DOOR CONTROL VALVE WAS ADJUSTED TO CORRECT PROBLEM.

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