Service difficulty report · Uplock Switch · Cessna 560XL

Difficulty date
February 11, 2010
Submitted
February 12, 2010
Operation
Air carrier
Make and model
Cessna 560XL
Aircraft serial
5605365
Aircraft time
5,481 hours, 4,303 cycles
Part
Uplock Switch
Condition
Out Of Adjust
Location
Nlg
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; STAB MISCOMPARE. CONFIRMED BELOW 200KTS & CYCLED FLAPS; STILL RECEIVING MISCOMPARE. RAN CHECKLISTS, PULLED HYD CTRL CB THEN NOTICED GEAR UNLOCK LIGHT ON WITH NO GREEN LIGHTS. ON APPCH; CB PUSHED IN & FLAPS 15-STAB MISCOMPARE WENT OUT, HYD PRESS LIGHT STILL ILLUMINATED. SELECTED GEAR DOWN, HYD PRESS LIGHT WENT OUT. ON GROUND; UNABLE TO GET STAB INTO T/O POSITION-VISUAL CHECK. FOUND NLG UPLOCK SWITCH TO REQUIRE ADJUSTMENT. ADJUSTED NLG UPLOCK SWITCH.

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