As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING IMBV INSPECTION, QA FOUND CORROSION ON CARGO DOOR STRUCTURE UPPER NUT PLATE HOLES. AIRCRAFT WAS REMOVED FROM SERVICE FOR IMBV INSPECTION AND WILL BE RETURNED TO SERVICE AFTER IMBV INSPECTION. REMOVED AND REPLACED CARGO DOOR STRUCTURE UPPER NUT PLATE PROFILE IAW SRM 51-40-02. AIRCRAFT WILL BE RETURNED TO SERVICE AFTER IMBV INSPECTION. (REPAIR PART 145-31544-601 )