# SDR CA020402001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2002
- Submitted: April 8, 2002
- Operation: General aviation
- Make and model: Amd FALCON20
- Aircraft time: 11,883 hours
- Engine: Ge CF7002D2
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Selector Switch
- Condition: Failed
- Location: Mlg
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA020402001

## Discrepancy

(CAN) ON MAR 23,2002 DURING LDG PHASE IN WILMINGTON, OHIO (KILN) PILOT INITIATED DEPLOYMENT OF LDG GEAR. COCKPIT INDICATOR SHOWED 3 RED LIGHTS IDENTIFYING FWD GEAR DOOR LATCH UNLOCKED & NO GREEN LIGHTS TO CONFIRM THAT GEAR DOORS WERE FULLY OPENED & GEAR DOWN & LOCKED.  THE CAUSE OF THE MALFUNCTION WAS IDENTIFIED BY OUR CONTRACTEDAMO AS MOISTURE WITHIN THE GEAR DOOR MICRO-SWITCHES, WHICH PREVENTED THE SELECTOR SOLENOID VALVE TO OPEN AND CONSEQUENTLY THE LANDING GEAR DID NOT RELEASE.  ALL SWITCHES WERE INSPECTED AND RE-SEALED.

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