As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCREPANCY: DURING ROUTINE "C" MAINTENANCE CHECK THE MAIN CARGO DOOR REINFORCEMENT BRACKET DRILLED INTO AT THE INBOARD FLANGE AT BODY STATION 672.0 STRINGER 7 LEFT. CORRECTIVE ACTION: REMOVED AND REPLACED REINFORCEMENT BRACKET IN ACCORDANCE WITH FAA ADVISOR CIRCULAR AC43.13.1B. A/C WAS RETURNED TO SERVICE.