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 FORWARD CARGO DOOR LOWER SILL, LOWER AFT ATTACH ANGLE AT BS 491, RBL 23. MAINTENANCE REMOVED CORRODED LOWER AFT ATTACH ANGLE AT BS 491, RBL 23; FABRICATED A NEW REPLACEMENT ANGLE PER DWG 65-20726; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02.