As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING OP 16 MAINT CHECK AT STA 200 AND BL 0 TO LBL 24 INCHES, FOUND HEAVY CORROSION AND SEALANT INSTALLED ON FLOOR WEB. PARTIAL MEMBRANE REMOVED. REPLACED FLOOR MEMBRANE FROM STA 175 TO 200, BL 0 TO LBL 44 WITH RIVETS PER SRM 51-30-2.