Service difficulty report · Torque Knee · Beech A100

Difficulty date
November 27, 1999
Submitted
March 26, 2000
Operation
Air carrier
Make and model
Beech A100
Engine
Pwa PT6A28
Propeller
Hartzl HCB4TN3
Part
Torque Knee
Part number
50810323
Condition
Cracked
Location
Rt & Lt Mlg
Component
115810000653
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) WHILE MOVING AXLE TO CHECK FOR EXCESSIVE PLAY, MOVEMENT WAS NOTICED IN THE TORQUE KNEE UPPER AND LOWER BUSHINGS (BOTH MAIN GEAR). LEFT AND RIGHT LANDING GEAR TORQUE KNEES REMOVED TO INSTALL NEW BUSHINGS. DURING BUSHING REPLACEMENT, A SMALL CRACK WAS NOTICED IN THE RADIUS OF SINGLE BOLT HOLE. UNIT L.P.I'D CONFIRMED CRACK. TWO OUT OF FOUR TORQUE KNEES FOUND CRACKED.

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