# SDR O9IA2012F00126

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 13, 2012
- Submitted: June 28, 2012
- Operation: Air carrier
- Aircraft: [N544LM](https://openairdocs.org/aircraft/N544LM), registered now
- Make and model: Lear 35A
- Registry model: [Lear 35A](https://openairdocs.org/model/gates-learjet-35a) (OpenAirDocs)
- Aircraft serial: 500
- Aircraft time: 12,746 hours, 9,011 cycles
- Engine: Garrtt TFE73122B
- System (JASC): [3297 · Landing Gear System Wiring](https://openairdocs.org/jasc/3297)
- Part: Connector
- Part number: MS3106E10SL3S
- Condition: Inoperative
- Location: Selector Valve
- Stage of operation: AP
- How discovered: O
- Nature of condition: F
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/O9IA2012F00126

## Discrepancy

DURING APPROACH,  FLIGHT CREW SELECTED GEAR DOWN.  GEAR DID NOT EXTEND.  SECOND ATTEMPT WAS TRIED WITH SAME RESULTS.  LANDING GEAR WAS EXTENDED USING EMERGENCY EXTENSION PROCEDURES.  LANDING .  INVESTIGATION REVEALED FAULTY CONNECTOR ON LANDING GEAR SELECTOR VALVE.  CONNECTOR REPLACED, LANDING GEAR LINES PURGED, HYD SERVICED AND BLED.  GEAR SWINGS PERFORMED WITH NORMAL RESULTS.

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