What was found
PILOT WAS MAKING A TURN FOR TAKEOFF WITH A LOAD OF FERTILIZER WHEN LEFT GEAR COLLAPSED CAUSING DAMAGE TO PROPELLER AND LANDING GEAR BEAM, BRACKET ASSY, PN A1322-001, AND STUD ASSY, PN A1518-111. CAUSE WAS SUSPECT DUE TO THE HEAD OF THE REAR BOLT, PN MS20009-138 HAD BROKEN OFF CAUSING THE UPPER ATTACH POINT OF THE GEAR LEG TO FAIL.