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 REF NR 2018-222183 SUPPORT BRACKET FLOOR STRUCTURE LOCATED AT FR80 BETWEEN S29L TO S29R (2EA) ON AFT CARGO COMPARTMENT; REPLACED SUPPORT BRACKET FLOOR STRUCTURE LOCATED AT FR80 BETWEEN S 29L TO S29R (2EA) ON AFT CARGO COMPARTMENT IAW SRM 51-40-08 & DWG 170-65180-433.