What was found
DURING C-18 CHECK, A 1 INCH CRACK WAS FOUND IN FRAME AT BS 294, STR 7 LT. MAINTENANCE REMOVED CRACKED FRAME AT BS 294, STR 7 LT; FABRICATED A NEW REPLACEMENT SECTION OF WEB PER DWG 65-17684; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02, FIG 8 & 12.