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 SIIDE OF FUSELAGE SKIN IS CORRODED AT AFT LAVATORY VENT ACFT STA 917 BETWEEN STRINGERS 21L AND 22L. EVALUATED AREA DETERMINED OUT OF LIMITS CUTOUT DAMAGE FABRICATED AND INSTALLED ALL REPAIR PARTS. PER B737NG SRM 53-70-01-1A AND SRM 53-70-012R-3.