As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CURRENT HMV OF AIRCRAFT, CORROSION WAS FOUND ON THE FUSELAGE SKIN SURFACE AT FS 1682, S26R S29R, UNDER THE FORWARD FLANGE OF THE AFT LAV SERVICE PAN ASSEMBLY. THE CORROSION WAS BLENDED TO REMOVE THE DAMAGE, AND A BOEING APPROVED REPAIR WAS INSTALLED PER ERA 458474-14.