# SDR 4012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 2004
- Submitted: March 25, 2004
- Operation: Air carrier
- Aircraft: N711LH
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Aircraft serial: 318152174
- Aircraft time: 12,176 hours, 12,176 cycles
- Engine: Lyc LTIO540J2BD
- Engine time: 5,585 hours, 5,585 cycles
- Propeller: Hartzl HCC4YR2
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Switch
- Part number: 487862
- Condition: Intermittent
- Location: Zone 700
- Stage of operation: LD
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/4012

## Discrepancy

INTERMITTENT LEFT GEAR DOWN AND LOCK LIGHT.FOUND DOWN AND LOCK SWITCH BAD, REMOVED AND REPLACED SWITCH OPS. CHECKS 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.
