Service difficulty report · Uplock Switch · Cessna 560XL

Difficulty date
December 22, 2022
Submitted
December 27, 2022
Operation
Air carrier
Aircraft
N556QS
Make and model
Cessna 560XL
Aircraft serial
5605553
Aircraft time
13,192 hours, 10,197 cycles
Part
Uplock Switch
Condition
Out Of Rig
Location
Nlg
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

UPON RAISING GEAR HANDLE, RED UNLOCK LIGHT ILLUMINATED & REMAINED ON FOR DURATION OF FLIGHT, UNTIL LANDING GEAR HANDLE CYCLED DOWN FOR LANDING. WENT OUT WHEN GEAR HANDLE WAS CYCLED TO DOWN PRIOR TO LANDING. UNABLE TO DETERMINE IF UNLOCK LIGHT REFERRED TO NOSE, LT MAIN OR RT MAIN. COULD BE RELATED TO STAB MISCOMPARE GRIPE. JACKED AIRCRAFT. REMOVED AND REPLACED BENT LT & RT BRACKET ASSY & INSTALLED NEW BUCKETS, BUSHINGS, & SPACERS. . WORK PERFORMED LAW CMM 32-20•01. PERFORMED MLG OPS CHECK & FOUND MLG UNLOCK LIGHT STILL ILUMLNATED AFTER MLG RETRACTION. RIGGED NLG UPLOCK SWITCH IAW AMM 32-61--00. PERFORMED 10 CYCLES OF MLG, NO DISCREPANCIES. OPS CHECKED GOOD. ORIG SUBMISSION DATE: 12/22/2022

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