# SDR 99ZZZX2540

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 12, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N33PG](https://openairdocs.org/aircraft/N33PG), registered now
- Make and model: Gulstm 500S
- Aircraft serial: 17325
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Valve
- Condition: Failed
- Location: Cockpit
- Stage of operation: NR
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX2540

## Discrepancy

AFTER GEAR WAS RAISED, ON THE NEXT GEAR EXTENSION, THE VALVE MALFUNCTIONED AND GEAR DID NOT EXTEND.  REFERENCE ACCIDENT NR NYC99LA139.  PART S/N 12-6-84-407-14A 3126-1.

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