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 .5 INCH CRACK WAS FOUND ON STRINGER TIE CLIP AT BS 727B, STR 7 LT. MAINTENANCE REMOVED CRACKED STRINGER TIE CLIP AT BS 727B, STR 7 LT; FABRICATED A NEW REPLACEMENT TIE CLIP PER DWG 65-35352; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02, FIG 8 & 12.