# SDR MALA030568

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2003
- Submitted: December 26, 2003
- Operation: Air carrier
- Aircraft: [N417XJ](https://openairdocs.org/aircraft/N417XJ), registered now
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B417
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Control Unit
- Part number: D49412001
- Part serial: 6201096
- Condition: Failed
- Location: E/E Bay
- 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/MALA030568

## Discrepancy

DURING FLIGHT 3114, ON GEAR RETRACTION HYDRAULIC PUMP DID NOT RUN AND INTRANSIT LIGHT DID NOT COME ON.  AIR RETURN TO MSP.  MAINTENANCE REPLACED LANDING GEAR CONTROL UNIT P/N D494-12-001, S/N OFF 620/10-96, S/N ON 619/10-96, IAW AMM 32-31-05-2, OPS CHECKS GOOD.

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