As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOOSE AFT RIVETS IN CABIN DOOR HINGE LED TO FURTHER INVESTIGATION. FOUND HINGE SUPPORT INSIDE DOOR ASSY CRACKED TO A LENGTH OF 4 INCHES THROUGH 4 EACH RIVET HOLES. SUGGEST HINGE AFT RIVETS MAY HAVE BEEN IN A LOOSE CONDITION FOR AN EXCESSIVE LENGTH OF TIME.