What was found
NOTICED EXCESS PLAY BETWEEN RT AND LT PEDALS DUE TO ELONGATED THRU BOLTS IN ASSY. UPON DISASSEMBLY, FOUND TUBE TO HAVE EXTREME CRACK RADIATING FROM THRU BOLT HOLE AND RADIATING AROUND TO BACK SIDE OF TUBE AND GOING OUT TO EACH SIDE IN A SPIRAL FRACTURE. PART WAS VERY NEAR TOTAL FAILURE. THIS PART IS IMPOSSIBLE TO INSPECT WITHOUT TOTALLY REMOVING AND DISASSEMBLING RUDDER BAR ASSY. BELIEVE THIS IS CAUSED BY PRESSING HARD ON PEDALS TO TURN NOSE WHEEL BEFORE AIRCRAFT IS IN MOTION, CAUSING A STRONG RADIAL FORCE BEING APPLIED TO RUDDER BAR. (AL05200502805) (K)