What was found
WHILE MAKING A RIGHT CROSS-WIND LANDING, RUDDER FELT MUSHY AND WOULD ONLY MOVE THE 5 DEGREES LEFT. INSPECTION REVEALED THE LEFT RUDDER BAR HAD CRACKED ALMOST COMPLETELY AT THE POINT WHERE THE STRAIGHT TUBING IS WELDED TO THE CURVED TUBING AND REINFORCED WITH A WELDED BRACE. THREE CRACKS EMANATED FROM AN OILING HOLE, RADIALLY, THEN LONGITUDINALLY TO THE LEFT .3750 INCH, THEN CRACKED AROUND THE CIRCUMFERENCE OF THE TUBE. TO PREVENT RECURRENCE IF EVIDENCE OF HARD LANDING DAMAGE EXISTS, THE RUDDER BARS SHOULD BE REMOVED AND CHECKED FOR BENDS.