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-05 CHECK EXFOLIATION CORROSION WAS FOUND ON UPPER AND LOWER SURFACE AFT CARGO DOOR CUTOUT SILL WEB TO FRAME ATTACH ANGLE AT BS 794, BETWEEN STR 26 RT & STR 27 RT. MAINTENANCE REMOVED CORRODED SILL WEB TO FRAME ATTACH ANGLE AT BS 794, BETWEEN STR 26 RT & STR 27 RT; FABRICATED A NEW REPLACEMENT ANGLE PER DWG 65-47957; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02.