Service difficulty report · Guard · Beech C90

Difficulty date
March 1, 1999
Submitted
March 26, 2000
Operation
Air carrier
Make and model
Beech C90
Engine
Pwa PT6A21
Part
Guard
Part number
6185973002
Condition
Chafed
Location
Autopilot Servo
Component
6222733002
Stage of operation
IN
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

(CAN) RUDDER AUTOPILOT SERVO CAPSTAN CABLE GUARD ASSEMBLIES FOUND DAMAGED. ONE CABLE GUARD CUT IN HALF AND THE OTHER CUT THROUGH MORE THAN 50 PERCENT BY THE RUDDER TRIM AUTOPILOT SERVO CABLE. INVESTIGATION REVEALED THAT THE INCORRECT CAPSTAN ASSEMBLY HAD BEEN MATED TO THE RUDDER A/P SERVO AT OVERHAUL. THE CAPSTAN CABLE GUARDS ARE REMOVABLE AND POSITIONABLE ON THE -002 CAPSTAN WHILE ON THE CORRECT CAPSTAN, THE -003 THE GUARDS ARE FIXED IN PLACE.

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