What was found
(CAN) NUMEROUS CRACKS FOUND ON BRACKET DURING THE INSPECTION, ALSO FOUND THE RIB (P/N 1232108-1) LOCATED IN THE SAME AREA WAS CRACKED. THE BRACKET (P/N 1232139-1) IS RIVETED TO THE STABILIZER REAR SPAR AND WAS FOUND CRACKED ALONG A BEND AND LEFT THE RIVETED PORTION ON THE SPAR. THE BRACKET WHICH CONTAINS THE ELEVATOR TRIM ACTUATOR WAS NOW ONLY SECURED TO THE STABILIZER AT ONE POINT. THE TORQUE APPLIED BY THE CHAIN ACTING ON THE ACTUATOR ALLOWED THE ACTUATOR TO BECOME MISALIGNED AND SENT UP A VIBRATION.