Service difficulty report · Servo · Lear 55LEAR

Difficulty date
January 14, 2003
Submitted
January 14, 2003
Operation
Air carrier
Aircraft
N520SC
Make and model
Lear 55LEAR
Aircraft serial
087
Aircraft time
8,168 hours, 5,471 cycles
Engine
Garrtt TFE731*
Part
Servo
Part number
501126402
Part serial
1166
Condition
Chafed
Location
Yaw
Part time
8,168 hours, 5,471 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

THE SECONDARY YAW SERVO CABLE KEEPER WAS RUBBING THE PRIMARY YAW SERVO CABLE ON THE RT SIDE CAUSING EXCESSIVE WEAR ON BOTH COMPONENTS.