Service difficulty report · Uplock Switch · Cessna 750

Difficulty date
December 26, 2014
Submitted
January 5, 2015
Operation
Air carrier
Aircraft
N900QS
Make and model
Cessna 750
Aircraft serial
7500123
Aircraft time
13,575 hours, 8,361 cycles
Part
Uplock Switch
Condition
Out Of Adjust
Location
Nlg
Stage of operation
CR
How discovered
O
Nature of condition
E
Precautionary procedure
O

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

What was found

SEVEN NOSE GEAR BUMPS NOTED EN ROUTE. TWO CLIMBING AT 22,700' & 28,400, ONE IN CRUISE AT FL400 & FOUR ON DESCENT BETWEEN 18,000' & 11,000' WITH SPEED BETWEEN 340 & 290 KIAS. TROUBLESHOT NOSE GEAR BUMP. JACKED ACFT, DID MULTIPLE GEAR SWINGS. INSPECTED BOTH MAIN LANDING LT & RT UPLOCK SWITCH NO DISCREPANCY WAS NOTED. INSPECTED NOSE GEAR UPLOCK SWITCH FOUND SWITCH OUT OF ADJUSTMENT MADE ADJUSTMENT TO NOSE GEAR UPLOCK SWITCH PERFORMED MULTIPLE GEAR SWINGS. OPERATIONS CHECKED GOOD IAW MM 32-30-00.

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