What was found
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED AT PASSENGER CABIN FWD WET AREA FRAME 16, LBL45, FLOOR SUPPORT BRACKET UPPER SURFACE; R & R FLOOR BRACKET AT FR 16 LBL 45.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED AT PASSENGER CABIN FWD WET AREA FRAME 16, LBL45, FLOOR SUPPORT BRACKET UPPER SURFACE; R & R FLOOR BRACKET AT FR 16 LBL 45.