As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A PRE-DEPARTURE WALK AROUND, A CRACK WAS DISCOVERED ON THE AFT SEGMENT OF THE MAIN CARGO DOOR HINGE, FUSELAGE BS 630-650. THE ACFT WAS REMOVED FROM SERVICE, THE HINGE SEGMENT WAS REPLACED, AND THE ACFT WAS RETURNED TO SERVICE.