As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING POSTFLIGHT WALKAROUND, CREW REPORTED THE APU TAILCONE ACCESS DOOR TO BE MISSING. MAINTENANCE FOUND NO DAMAGE OTHER THAN MISSING PAINT AROUND ACCESS DOOR. THE DOOR WAS REPLACED IAW MM AND AIRCRAFT WAS RETURNED TO SERVICE. (SW21200404665)