Service difficulty report · Actuator · Cessna 550

Difficulty date
July 18, 2007
Submitted
July 18, 2007
Operation
General aviation
Aircraft
N26494
Make and model
Cessna 550
Aircraft serial
0605
Aircraft time
9,131 hours, 6,008 cycles
Engine
Pwa JT15D4
Part
Actuator
Part number
556545098
Part serial
032063
Condition
Worn
Location
Rt Stab
Part time
9,131 hours, 9,131 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

AT THE PHASE 5 INSPECTION THE ELEVATOR FAILED THE FREE PLAY CHECK. A OVERHAULED UNIT P/N 5565450-98 S/N 0320-63 WAS INSTALLED AND COULD NOT GET THE UP AND DOWN LIMITS TO COME IN TO SPECS. ON CLOSER INSPECTION IT WAS FOUND THAT THE PRIMARY DRIVE GEAR HAS 16 TEETH AND THE ORIGINAL UNIT HAS 14 TEETH. THIS UNIT WAS OVERHAULED 6/8/2007. AS OF THIS WRITING WE ARE IN THE PROCESS OF INSTALLING ANOTHER UNIT WITH THE CORRECT NUMBER OF TEETH.

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