As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, LANDING GEAR WAS RETRACTED. RED UNSAFE LIGHT DID NOT GO OUT. LANDING GEAR WAS EXTENDED, GOT THREE GREEN AND LANDED AT LFT. MAINTENANCE FOUND MAIN LANDING GEAR TIEDOWN RING ATTACHMENT BOLT FROZEN, CAUSING TIEDOWN RING TO NOT BE FREE TO SPRING AND LAY AGAINST LANDING GEAR STRUT, CAUSING INTERFERENCE WITH LANDING GEAR DOOR DURING RETRACTION. REPLACED BOLT.