As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF AND AFTER GEAR RETRACTION HEAVY VIBRATION WAS FELT IN THE NOSE WHEEL GEAR RETURNED BACK TO LAX AND AFTER PARKING FOUND RIGHT NOSEGEAR DOOR IN THE OPEN POSITION *** CORRECTIVE ACTION *** INSPECTED NOSE AREA FOUND RIGHT DOOR DOWN ON ARRIVAL FOUND RT DOOR LINK TO BE WORN R/R RIGHT DOOR LINK PER M/M 32-39-01 OPS CKS GOOD DOOR STAYS UP