As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LCQ - MAJOR REPAIR - DURING C-15 CHECK A .3125 INCH CRACK WAS FOUND IN BS 178 BULKHEAD VERTICAL BEAM WEB ON AFT SIDE RUNNING FROM BLANKET HOLE AT LBL 5.7, WL 180. MAINTENANCE CUTOUT DAMAGED SECTION OF BS 178 BULKHEAD VERTICAL BEAM WEB AT LBL 5.7, WL 180; FABRICATED A FILLER AND DOUBLER; INSTALLED REPAIR PARTS IAW B737-300 SRM 51-70-13, FIG. 1.