Service difficulty report · Uplock Switch · Cessna 680CE

Difficulty date
January 8, 2018
Submitted
January 12, 2018
Operation
General aviation
Aircraft
N55EP
Make and model
Cessna 680CE
Aircraft serial
6800571
Aircraft time
138 hours, 77 cycles
Part
Uplock Switch
Part number
69481013
Condition
Faulty
Location
Rt Mlg
Part time
138 hours, 77 cycles
Component
Uplock
Stage of operation
CL
How discovered
O
Nature of condition
N
Precautionary procedure
A

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

What was found

AFTER TAKEOFF, THE LANDING GEAR WAS SELECTED UP. THE NOSE AND LT GEAR RETRACTED NORMAL BUT THE RT GEAR STAYED EXTENDED. THE CREW SELECTED THE GEAR DOWN, LT AND NOSE GEARS RETRACTED NORMAL AND A NORMAL LANDING OCCURRED. MAINTENANCE CREW COULD NOT DUPLICATE THE ISSUE WITH MULTIPLE GEAR SWINGS. MAINTENANCE DETERMINED THAT THE RT UPLOCK SWITCH HAD FAILED. IT WAS ALSO NOTED THAT THE NOSE GEAR STRUT WAS DRY, CLEANED STRUT. THE AIRCRAFT WAS RELEASED FROM MAINTENANCE AND PERFORMED A NORMAL FLIGHT.