# SDR W9FA2012052200001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 17, 2012
- Submitted: May 22, 2012
- Operation: Air carrier
- Aircraft: N2
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605333
- Aircraft time: 3,669 hours
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Downlock Switch
- Condition: Failed
- Location: Nlg
- Part time: 3,669 hours, 3,018 cycles
- 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/W9FA2012052200001

## Discrepancy

GREEN NOSE GEAR DOWN AND LOCKED LIGHT REMAINED ON AFTER GEAR WAS RETRACTED. NO HORN AND NO RED LIGHT AFTER GEAR EXTENDED. TROUBLESHOOTING INDICATED THAT POSITION SWITCH FAILED IN THE DOWN AND LOCKED POSITION, THIS FAILURE INDICATED DOWN AND LOCKED NO MATTER WHAT THE POSITION OF GEAR.

---
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.
