As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT LAVATORY EXTERNAL SURROUND STRUCTURE CORRODED IN MULTIPULE LOCATIONS AROUND FASTENERS BETWEEN FS559.00+80.00 AND FS559.00+112.00 AND BETWEEN STGR20R AND STGR23R. (C-CHECK) RO 12/14/2019 REPAIRED IAW REO. FORM 337, SDR, AND MAJOR REPAIR TASK COMPLETE AND ATTACHED.NO MEASUREABLE WEIGHT CHANGE, BLEND OUT ONLY