As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING FLIGHT IN ROUGH TURBULENCE, THE REAR CARGO DOOR CAME OPEN. THE FLIGHT CREW ADVISED THAT THE LOCKS HAD BEEN SECURED AND LOCKED. THE AIRCRAFT IS HERE UNDERGOING REPAIR. INSPECTED THE LOCKS AND CAN FIND NO PROBLEM WITH THEM AS OF YET.