Service difficulty report · Uplock Switch · Cessna 750

Difficulty date
March 24, 2013
Submitted
March 25, 2013
Operation
Air carrier
Aircraft
N943QS
Make and model
Cessna 750
Aircraft serial
7500043
Aircraft time
12,912 hours, 8,157 cycles
Part
Uplock Switch
Condition
Out Of Adjust
Location
Mlg
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

IMMEDIATELY AFTER TAKEOFF, WHEN GEAR HANDLE WAS SELECTED TO UP POSITION, GEAR UNLOCK LIGHT FLASHED 5 OR 6 TIMES AS NOSE GEAR REPEATED TO MAKE LOUD BANGING NOISES BEFORE FINALLY LOCKING IN UP POSITION WITH NORMAL INDICATIONS. INSPECTED AND FOUND THAT THE NOSE STRUT WAS EXTENDED BEYOND LIMITS, RT MLG UPLOCK SWITCH WAS OUT OF ADJUSTMENT, AND NOSE EMERGENCY CABLE WAS TOO TIGHT DUE TO CABLE STUCK IN FAIRLEAD JUST FORWARD OF HANDLE IN COCKPIT. ADJUSTED NOSE STRUT, RT MLG UPLOCK SWITCH IAW MM 32-30-05 AND NLG EMERGENCY CABLE TO WITHIN SPECS. PERFORMED IAW MM 32-30-05, 12-20-10 AND CMM 32-20-02. PERFORMED LANDING GEAR FUNCTIONAL TEST AND AT THIS TIME THERE ARE NO DEFECTS NOTED.

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