As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER CABIN AFT WET AREA R 2 INNERCHORD (MOP SILL) CORRODED FROM 947 996. REPLACED CORROSION MATERIAL LOSS FOUND TO BE OUT OF LIMITS. REPLACED INNERCHORD AND REINSTALLED ATTACHING PARTS IAW BA737 400 SRM 53 60 15, 51 40 05 & 51 40 02.