As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT WET AREA FLOOR STRUCTURE; AFT WEB AT STA 1016 TO BULKHEAD; LBL 9-15; AREA HAVE CORROSION. / BLENDED CORROSION ON AFT L/H LAV PAN 100% MATERIAL LOSS. FOUND OUT OF LIMITS IAW SDM53-70-51-1A-1. FABRICATED NEW WEB ON B/S W/O 38046-2400-0001. REPLACED WB; P/N 147A5620-19; AND INSTALLED IAW SRM 51-40-02-0G-0 AND BOEING DRAWING 147A5600 REV A