# SDR MALA020510

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 23, 2002
- Submitted: August 27, 2002
- Operation: Air carrier
- Aircraft: N457XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B457
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Control Valve
- Part number: HP84843072
- Part serial: ON1213
- Condition: Defective
- Stage of operation: LD
- How discovered: V
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MALA020510

## Discrepancy

DURING FLIGHT #3309 LANDING GEAR WOULD NOT EXTEND INFLIGHT.  RESET F7 C/B WAS RESET PER QRH AND GEAR EXTENDED SUCCESSFULLY.  MAINTENANCE REMOVED AND REPLACED LANDING GEAR CONTROL VALVE, PERFORMED GEAR SWINGS, AND LEAK CHECK GOOD.  IAW AMM 32-31-15-4 PN HP848430-72 SN/ON 1213, SN/OFF 2102 A/C OK FOR SERVICE

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