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 .375 INCH CRACK WAS FOUND ON STRINGER TIE CLIP AT BS 400, STR 8 LT. MAINTENANCE REMOVED CRACKED STRINGER TIE CLIP AT BS 400, STR 8 LT; FABRICATED A NEW REPLACEMENT TIE CLIP; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02 FIG 4, 8, & 12.