Service difficulty report · Actuator · Cessna 550

Difficulty date
January 3, 2005
Submitted
January 5, 2005
Operation
General aviation
Aircraft
N26496
Make and model
Cessna 550
Aircraft serial
5500607
Aircraft time
6,133 hours
Part
Actuator
Part number
511523128
Part serial
06928AB
Condition
Malfunctioned
Location
Elevator Trim
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

DURING PREFLIGHT OF AIRCRAFT, PILOT HEARD A NOISE IN WHILE OPERATING ELEVATOR ELECTRIC TRIM. TROUBLESHOOTING REVEALED THAT THE TRIM CABLES IN THE ELEVATOR ELECTRIC TRIM ACTUATOR HAD CROSSED. A REPLACEMENT ELECTRIC TRIM ACTUATOR WAS ORDERED. UPON RECEIPT OF THE ACTUATOR IT WAS DISCOVERED THAT ONE OF THE CABLES HAD BEEN BENT OVER AND PINCHED. FURTHER INSPECTION REVEALED A BROKEN WIRE IN THE CABLE AT THE PINCHED AREA. THE ACTUATOR WAS RETURNED TO THE VENDOR AS UNSERVICABLE, AND ANOTHER ORDERED.

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