# SDR F3LA200400117

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 12, 2004
- Submitted: December 13, 2004
- Operation: Air carrier
- Aircraft: [N312FL](https://openairdocs.org/aircraft/N312FL), registered now
- Make and model: Boeing 737-3L9
- Registry model: [Boeing 737-3L9](https://openairdocs.org/model/boeing-737-3l9) (OpenAirDocs)
- Aircraft serial: 24569
- Aircraft time: 39,197 hours, 29,775 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Proximity Sensor
- Part number: 106122615
- Condition: Faulty
- Location: Landing Gear
- Stage of operation: LD
- 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/F3LA200400117

## Discrepancy

FLIGHT CREW REPORTED LANDING GEAR WARNING HORN STUCK ON WHEN FULLY CONFIGURED ON FINAL AND WOULD NOT SILENCE UNTIL FLAPS RETURNED TO UP POSITION AFTER LANDING.  REPLACED PROXIMITY SENSOR 5853.  OPS CHECKED GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.