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 4 RT AT BS 867. MAINTENANCE REMOVED DAMAGED SECTION OF STRINGER 4 RT AT BS 867; FABRICATED A FILLER AND 2 EACH REPAIR ANGLES; INSTALLED REPAIR PARTS IAW B737-300 SRM 53-00-03 FIG 203 PG 214-216.