As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: LEFT HAND SIDE OF FUSELAGE SKIN IS CORRODED AT AFT LAVATORY OVERBOARD VENT AREA AT STA 907 BETWEEN STR 21L AND 22L. REPAIRED LEFT HAND SIDE OF FUSELAGE SKIN IS CORRODED AT AFT LAVATORY OVERBOARD VENT AREA. PER B737 SRM 53-70-01-2R-3.