# SDR 2003F00387

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 24, 2003
- Submitted: June 12, 2003
- Operation: Air carrier
- Aircraft: N5101
- Make and model: Gulstm GULFSTREAMGV
- Aircraft serial: 550
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Valve
- Part number: 1159SCH5125
- Condition: Malfunctioned
- Location: Hyd System
- Stage of operation: AP
- 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/2003F00387

## Discrepancy

UNABLE TO GET NORMAL LANDING GEAR EXTENSION.  PERFORMED EMERGENCY LANDING GEAR EXTENSION.  T/S LANDING GEAR SYSTEM INDICATED A MALFUNCTION OF THE LANDING EAR HYDRAULIC SELECTOR VALVE LOCATED IN THE MAIN WHEEL WELL.  REPLACED LANDING GEAR  HYDRAULIC SELECTOR/DUMP VALVE.  LANDING GEAR OPERATIONAL CHECKS NORMAL IAW GULFSTREAM MM.  (M)

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