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-18 CHECK A .75 INCH CRACK WAS FOUND IN WEB UNDER CREASE BEAM INNER CHORD AT BS 986.5, LBL 43. MAINTENANCE REMOVED DAMAGED WEB FROM BS 986.5 TO BS 1016, LBL 37 TO LBL 45; FABRICATED A NEW REPLACEMENT WEB PER DWG 65-46812; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02 FIG 3 & 12.