What was found
DURING C-18 CHECK A .25 INCH CRACK WAS FOUND IN STRINGER CLIP BS 520, STR 14 LT. MAINTENANCE REMOVED CRACKED STRINGER CLIP AT BS 520, STR 14 LT; RECEIVED A NEW REPLACEMENT STRINGER CLIP; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02, PG 45 & 64, FIG 12 & 14.