# SDR SWAA118391

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 5, 2011
- Submitted: December 7, 2011
- Operation: Air carrier
- Aircraft: N652SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 27722
- Aircraft time: 47,171 hours, 37,701 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Priority Valve
- Part number: 65446915
- Part serial: 6895
- Condition: Faulty
- Location: Lt Mlg
- Stage of operation: AP
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA118391

## Discrepancy

ON APPROACH LT MLG WOULD NOT SHOW DOWN AND LOCKED.  CYCLED GEAR, LOCKED DOWN LANDED NORMAL.  REMOVED AND REPLACED MLG PRIORITY MODULAR VALVE IAW MM.

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