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 AFT CARGO COMP STR BILGE AREA 58-59 STR 43LH; (REF HAECO NR 440504-42556) REMOVED AND REPLACED CORRODED STRINGER SECTION IAM SRM 53-00-13-300-001 @ AFT CARGO COMP STR BILGE AREA FRAME 58-59 STR 43 LH.