Service difficulty report · Uplock Switch · Doug DC863

Difficulty date
January 4, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N781AL
Make and model
Doug DC863
Aircraft serial
45926
Part
Uplock Switch
Part number
H146
Condition
Intermittent
Location
Rt Mlg
Stage of operation
CR
Nature of condition
N
Precautionary procedure
O

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

What was found

EN ROUTE, GEAR UPLATCH CHECK FAILED WITH THE GEAR NOT LATCHED WARNING LIGHT ILLUMINATED. FLIGHT CONTINUED WITH AN UNEVENTFUL LANDING AT BDL. MAINTENANCE DEFERRED THE UPLATCH SYSTEM IN ACCORDANCE WITH THE MASTER EQUIPMENT LIST, MEL, 32-16, *S/D* AIRCRAFT WAS FERRIED TO HEAVY MAINTENANCE FACILITY FOLLOWING SUBSEQUENT EVENT. MAINTENANCE ADJUSTED THE MAIN LANDING ACTUATORS, UPLATCHES, AND REPLACED THE RT UPLOCK SWITCH IAW M/M 32-32-2 AND 32-60-0 WHICH ALSO ACCOMPLISHED A GEAR SWING. THE DEFERRED ITEM WAS CLEARED AND THE AIRCRAFT RETURNED TO SERVICE.

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