As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-05 CHECK CORROSION WAS FOUND ON UPPER SURFACE OF LT AFT OUTBOARD WEB BETWEEN BS 995 AND BS 1015, LBL 38 AND LBL 42. MAINTENANCE REMOVED CORRODED LT AFT OUTBOARD WEB FROM BS 995 TO BS 1015, LBL 38 TO LBL 42; FABRICATED A NEW REPLACEMENT WEB PER DWG 65-46812; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02.