As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED NOSE WHEEL WOULD NOT LOCK (UP) AND RETURNED TO BASE WITHOUT ABNORMAL INDICATION. MAINTENANCE INSPECTION REVEALED THAT THE BOLTS IN THE NOSE WHEEL RIGHT DOOR WERE WORN AND WERE REPLACED. DOOR WAS STRAIGHTENED AND RERIGGED. RETRACTION AND OPS CHECKED OK. FLOWN AND RELEASED FOR SERVICE.