What was found
(CAN) RT MLG COLLAPSE AFTER TOUCH DOWN/DURING ROLL OUT. BEFORE A/C WAS RECOVERED FROM THE INFIELD A PORTION OF THE LOWER DRAG BRACE ATTACH BOLT WAS FOUND ON THE RUNWAY (APPROX 1000 FT OR MORE FROM A/C) STILL WITH THE NUT AND COTTER PIN ATTACHED. AFTER A/C WAS LIFTED FOR RECOVERY A SECOND PIECE OF BOLT WAS REMOVED FROM THE LOWER DRAG BRACE. MLG WAS SECURED AND AIRCRAFT RECOVERED AND MOVED TO HANGAR FACILITY FOR FURTHER INSP.