As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6181 - IAD-BWI - DURING POST INSPECTION, LEFT NOSE TIRE ASSEMBLY FOUND MISSING AT BWI. MAINTENANCE INSPECTED AND REPLACED NOSE TIRE. OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. THE MISSING TIRE WAS LOCATED AT IAD. AN INSPECTION REVEALED A CRACKED AXLE NUT LOCK RING. AN INVESTIGATION HAS BEEN INITIATED. (M)