# SDR SWAA064933

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2006
- Submitted: December 15, 2006
- Operation: Air carrier
- Aircraft: N649SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 27719
- Aircraft time: 32,674 hours, 26,914 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Downlock Sensor
- Part number: 310FW0410
- Condition: Faulty
- Location: Nlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA064933

## Discrepancy

AIRTURN BACK, UPON GEAR RETRACTION BOTH RED AND GREEN NLG LIGHTS ILLUMINATED.  AFTER EXTENSION LIGHTS INDICATED NORMAL.  REMOVED AND REPLACED NLG DOWNLOCK SENSOR PER MM.

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