What was found
UPON LANDING ROLLOUT, STUDENT PILOT REPORTED DIFFICULTY WITH NOSE WHEEL STEERING. AFTER TURNING OFF RUNWAY USING DIFFERENTIAL BRAKING, THE INSTRUCTOR PRESSED ON RUDDER PEDALS TO TEST STEERING. AT THIS TIME THE NOSE GEAR COLLAPSED FOLDING FORWARD AND PROPELLERS OF BOTH ENGINES STRUCK THE GROUND AS THE ACFT CAME TO A HALT. EXAMINATION OF THE ACFT REVEALED THE BOLT SECURING THE UPPER DRAG BRACE TO THE FRAME OF THE ACFT HAD FRACTURED AND THE RT NOSE WHEEL DRAG LINK ATTACHMENT FITTING WAS BROKEN. FURTHER EXAMINATION OF THE BOLT SHOWED EVIDENCE OF FATIGUE.