What was found
FOUND PIVOT ASSEMBLY SPINE AREA FAILED, NO WARNING, NO INDICATION OF SPONGY BREAKS, NO SQUAWKS OF HUG GEAR, OR ANY OTHER GEAR PROBLEMS. PERFORMED 3 GEAR SWINGS, AND ONE EMERGENCY GEAR SWING PRIOR TO INCIDENT. GEAR HAD FUNCTION 100 PERCENT, AND WITH IN SERVICE MANUAL RECOMMENDED TIME FRAMES. PERFORMED GEAR SWING AFTER INCIDENT, FOUND PIVOT ASSEMBLY SHEARED. REMAINING LEFT, AND NOSE GEAR FUNCTIONING NORMAL. AD WAS PERFOREMD 103.4 HOURS PRIOR, NO GEAR PROBLEMS NOTED.