As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPAIR THE MAIN UPPER CARGO DOOR DUE TO MAIN CARGO DOOR CAME OPEN INFLIGHT. REF ATI LOG SHEET NR 16711 AND 16712 FS 253 TO 260 INTERCOSTAL CRACKED TOP MOST ON MAIN CARGO DOOR. REMOVED AND REPLACED IAW DC8 SRM 51-1-21 AND 51-1-0. (7075-T6) NON-ROUTINE TASK CARD NUMBER 111326.