As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO DOOR CUTOUT- THRESHOLD SILL PLATE HAS SURFACE CORROSION LENGTH WISE ALONG SEEM AND FASTENER HOLES/. GROUNDED - YES. REMOVED CORROSION FROM AFT CARGO LOWER SILL WEB,ORIG THICKNESS 0.050;REMOVED 0.006;REMAINING 0.044 AND FOUND TO BE OUT OF LIMITS PER B737-800 SRM 53-60-15;REMOVED AND REPLACED WEB PER B737-800 SRM 51-40-02 AND DWG 146A8340.