# SDR SWAA095870

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 14, 2009
- Submitted: September 15, 2009
- Operation: Air carrier
- Aircraft: N653SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 28398
- Aircraft time: 40,482 hours, 32,605 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Uplock Sensor
- Part number: 806002
- Condition: Faulty
- Location: Lt Mlg
- Stage of operation: AP
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA095870

## Discrepancy

LEFT MLG UNSAFE LIGHT IND.  CYCLED THE GEAR LEVER AND INDICATION LIGHT REMAINED RED.  REMOVED AND REPLACED LEFT MLG UPLOCK SENSOR, M986, M988 LANDING GEAR LOGIC CARDS PER MM.

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