What was found
AIRCRAFT EXPERIENCED A NOSE GEAR FAILURE/COLLAPSE DURING TAXI IMMEDIATELY FOLLOWING LANDING. EXAMINATION OF THE AIRCRAFT AT THE SCENE REVEALED THAT THE NOSE GEAR ACTUATOR ASSEMBLY AFT ATTACHMENT BOLT HAD FAILED. THE HEAD OF THE BOLT HAD BROKEN OFF AND THE BOLT HAD SUBSEQUENTLY WORKED IT'S WAY OUT OF THE ATTACH FITTING ALLOWING THE ACTUATOR TO COME LOOSE DURING TAXI AFTER LANDING. PHYSICAL INSPECTION OF THE BOLT FOUND EVIDENCE THAT THE HEAD OF THE BOLT HAD MOST LIKELY BEEN SEPARATED FOR SOME TIME PRIOR TO THE INCIDENT.