As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
***CORROSION*** SKIN AROUND WASTE TANK VENT WL 181 STA917 STR 21L-22L / CORROSION ON SKIN AROUND WASTE TANK VENT BS 917 STR 21L-22L FOUND TO BE OUT OF LIMITS PER SRM 53-00-01-1A-1. REPAIRED BLEND DAMAGE PER ER-19-03609 REV 1R AND EA 1-753-35067 REV 1R