As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY CHECK, MAINTENANCE FOUND CORROSION IN FASTENER HOLES ALONG AFT LOWER EDGE SEAL OF THE FORWARD CARGO DOOR CUTOUT. MAINTENANCE REMOVED AND REPLACED THE FORWARD CARGO DOOR AFT LOWER SEAL PER THE EMB SRM. AIRCRAFT STILL IN HEAVY MAINTENANCE CHECK.