As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-17 CHECK EXFOLIATION CORROSION WAS FOUND ON R-1 DOOR THRESHOLD SHEAR WEB BETWEEN BS 344 AND BS 360, RBL 64 AND RBL 68. MAINTENANCE REMOVED CORRODED SHEAR WEB FROM BS 344 TO BS 360, RBL 64 TO RBL 68; FABRICATED A NEW REPLACEMENT SHEAR WEB PER DWG 65-45875; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02.