As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON HOLES LOWER SILL AT AFT GALLEY AREA ON FR 68 STR 23L. PERFORMED PERMANENT REPAIR ON LOWER SILL AT AFT GALLEY AREA ON FR 68 & STR 23L IAW SRM 53-41-14-300-001 PAR 2A. REPAIR PRINCIPLE 5. THIS REPAIR IS A CATEGORY A IAW SRM 53-41-14-300-001 PAR 1E.