As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED LOUD NOISE AFTER RAISING THE LANDING GEAR AFTER TAKEOFF. NOISE APPEARED TO COME FROM THE NOSE GEAR DOOR. CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED, R & R LT NLG LOCK LINK SPRING AND PERFORMED CHECKS IAW AMM. ACFT RELEASED FOR SERVICE.