# SDR SIMA20011031

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2001
- Submitted: May 8, 2001
- Operation: Air carrier
- Aircraft: [N359SB](https://openairdocs.org/aircraft/N359SB), registered now
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B359
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Control Valve
- Part number: HP848430621
- Part serial: 1384
- Condition: Failed
- Location: Mlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20011031

## Discrepancy

ISP - FLT 4622 - CREW REPORTED THE LANDING GEAR FAILED TO RETRACT AFTER TAKEOFF.  MAINTENANCE REMOVED AND REPLACED THE LANDING GEAR CONTROL VALVE IAW SAAB MM 32-31-20.  OPS AND LEAK CHECK WERE GOOD AND AIRCRAFT WAS RETURNED TO SERVICE.  (M)

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