# SDR 2003FA0000717

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 2003
- Submitted: July 23, 2003
- Operation: General aviation
- Aircraft: [N867AF](https://openairdocs.org/aircraft/N867AF), registered now
- Make and model: Grob G 120A
- Registry model: [Grob G 120A](https://openairdocs.org/model/grob-werke-g-120a) (OpenAirDocs)
- Aircraft serial: 85007
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Manifold
- Part number: X030004000000
- Part serial: 0007
- Condition: Inoperative
- Location: Flow Control
- Part time: 549 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2003FA0000717

## Discrepancy

DURING FLIGHT THE FLIGHT CREW REPORTED THAT THE LEFT GEAR WAS SLOW TO EXTEND.  MAINTENANCE PERSONNEL TROUBLESHOT SYSTEM AND FOUND LEFT EXTENSION VALVE BAD.  PROBABLE CAUSE IS BELIEVED PARTICIALS INSIDE OF VALVE WHICH PREVENTED FLUID TO FLOW UNRESTRICTED.

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