As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON REMOVAL OF POTABLE WATER BELLY DRAIN AT FS 594 BETWEEN L30-L29R, EXTERNAL FUSELAGE FOUND CORROSION ON DRAIN CUTOUT AND INTERNAL SKIN. COMPLIED WITH ER/A 508946-14 REV ORIGINAL. COMPLETED AND INSPECTED. ASSOCIATED ER/A 14-508946 ADDED FOR AC 0936.