What was found
LCQ - MAJOR REPAIR - DURING C-18 CHECK A .25 INCH CRACK WAS FOUND IN STRINGER TIE AT BS 807, STR 4 LT. MAINTENANCE REMOVED CRACKED STRINGER TIE CLIP AT BS 807, STR 4 LT; FABRICATED A NEW REPLACEMENT STRINGER TIE CLIP; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02, PARA 7.