As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER GEAR RETRACTION FLIGHT CREW REPORTED EXCESSIVE NOISE IN THE COCKPIT COMING FOR THE NOSE WHEEL WELL. ACFT RETURNED TO DEPARTURE. UPON LANDING, MX FOUND THE REAR LT NLG FIXED DOOR OPEN. THE HINGE THAT HOLDS THE FIXED ROD WAS DISCONNECTED FROM THE DOOR. THE BROKEN HINGE WILL BE REVIEWED BY ENGINEERING.