As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE TROUBLESHOOTING AN AIRFRAME VIBRATION ISSUE THE LEFT HAND NOSE LANDING GEAR AFT DOOR HINGE FITTING BETWEEN FR 18 TO FR 20 AT LBL YT449 WAS FOUND TO HAVE EXCESSIVE PLAY. REPLACED LEFT HAND NOSE LANDING GEAR AFT DOOR HINGE FITTING PER AMM 32-22-13-410-0001-A.