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 .3750 INCH CRACK WAS FOUND IN BS 178 BULKHEAD VERTICAL BEAM WEB ON AFT SIDE RUNNING FROM BLANKET HOLE AT RBL 17.1, WL 184. MAINTENANCE REMOVED CRACKED BS 178 BULKHEAD VERTICAL BEAM WEB AT RBL 17.1, WL 184; FABRICATED A NEW REPLACEMENT WEB; INSTALLED REPAIR PART IAW B737-300 SRM 53-70-13, FIG. 1.