What was found
ON ARRIVAL MIA PILOT REPORTED LEFT WING VERY HEAVY ON TAKEOFF AND LANDING. GROUND INSPECTION REVEALED A BROKEN CRANK ASSEMBLY AT THE RIGHT ELEVATOR BUS TORQUE TUBE. THE BREAK OCCURRED AT THE LARGE DIAMETER HOLE WHERE THE CRANK ASSY MOUNTS ON THE ELEVATOR BUS TORQUE TUBE. IT APPEARS A CRACK EMANATED FROM THE THROUGH BOLT RETAINING HOLE OF THE CRANK CAUSING THE CRANK TO SEPARATE FROM THE BUS TORQUE TUBE. THE CRANK ASSY WAS REPLACED AND AIRCRAFT RETURNED TO SERVICE. (M)