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-12 CHECK A .5 INCH CRACK WAS FOUND AT LIGHTNING HOLE IN BS 178 BULKHEAD VERTICAL WEB BEAM RBL 5, WL 195. MAINTENANCE REMOVED CRACKED SECTION OF BS 178 BULKHEAD VERTICAL WEB BEAM AT RBL 5, WL 195; FABRICATED A NEW REPLACEMENT SECTION OF WEB; INSTALLED REPAIR PART IAW B737-300 SRM 51-70-13 FIG 1.