# SDR WVBA20110421M001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2011
- Submitted: April 22, 2011
- Operation: Air carrier
- Aircraft: [N59764](https://openairdocs.org/aircraft/N59764), registered now
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Aircraft serial: 317652037
- Aircraft time: 27,242 hours
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Downlock Switch
- Part number: 487862
- Condition: Inoperative
- Location: Zone 700
- Stage of operation: DE
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WVBA20110421M001

## Discrepancy

PILOT WAS ON APPROACH AND NOTICED GEAR UNSAFE LIGHT FAILED TO EXTINGUISH ON GEAR DOWN SELECTION.  GREEN LIGHT ALSO FAILED TO ILLUMINATE FOR NOSE LANDING GEAR.  PILOT DIVERTED & LANDED WITHOUT INCIDENT.  MX ENSURED GEAR WAS LOCKED AND TOWED TO HANGAR FOR INSP AND FOUND THE LANDING GEAR DOWNLOCK SWITCH TO BE INOPERATIVE.  REPLACED SWITCH, PN 487-862 IAW SRM 7-36; SWUNG GEAR MULTIPLE TIMES WITH GOOD RESULTS.  SUBSEQUENT OPS CHECK-FLIGHT GOOD - ACFT RETURNED TO SERVICE.

---
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.