As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO, DOOR CUTOUT LOWER SILL WEB UPPER SURFACE HAS CORROSION FOUND ON SEVERAL SPOTS. GROUNDED - YES. CORROSION REMOVED AT AFT CARGO DOOR LOWER (WEB) IAW B737-800 SRM 53-60-15-01-1 ORIGINAL THICKNESS IS .056, REMAINING THICKNESS .046 LOSS OF .010. FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-60-15-01-1. REMOVED & REPLACED WEB IAW B737-800 SRM 51-40-02 & BAC DWG 146A8340 REV:A.