Service difficulty report · Downlock Switch · Cessna 560CESSNA

Difficulty date
June 28, 2017
Submitted
June 28, 2017
Operation
General aviation
Aircraft
N560HD
Make and model
Cessna 560CESSNA
Aircraft serial
5600274
Aircraft time
5,436 hours, 4,465 cycles
Part
Downlock Switch
Part number
1EN1186
Condition
Sticking
Location
Nlg
Part time
5,436 hours, 4,465 cycles
Stage of operation
AP
How discovered
O
Nature of condition
P
Precautionary procedure
L

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AIRCRAFT WAS ON APPROACH. CREW EXTENDED LANDING GEAR AND DID NOT GET A NOSE GEAR DOWN AND LOCKED LIGHT. CYCLED GEAR AND ATTEMPTED TO EXTEND THE LANDING GEAR. THE RESULT WAS THE SAME. ALSO NOTED THAT THEY DID NOT HAVE A RED GEAR IN TRANSIT LIGHT. AS THE CREW RAN THE EMERGENCY CHECKLIST, CYCLED THE GEAR CONTROL CIRCUIT BREAKER. AFTER CYCLING THE CIRCUIT BREAKER THE NOSE LANDING GEAR DOWN AND LOCKED LIGHT ILLUMINATED. AIRCRAFT LANDED WITH NO FURTHER ISSUES. INSPECTION RESULTED IN FINDING THE DOWN LOCK SWITCH ON THE NLG ACTUATOR STICKING. ACTUATOR ALSO HAD EXCESSIVE PLAY. ACTUATOR AND SWITCH WERE REPLACED.