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 10 RT AT BS 294. MAINTENANCE REMOVED CRACKED STRINGER 10 RT FROM BS 280 TO BS 294; FABRICATED A NEW REPLACEMENT STRINGER PER DWG 65C34778; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02 FIG 12 PG 1.