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 .5 INCH CRACK WAS FOUND AT LIGHTNING HOLE ON VERTICAL BEAM WEB AFT SIDE OF BS 178 BULKHEAD LBL 5.7, WL 195. MAINTENANCE REMOVED VERTICAL BEAM WEB AFT SIDE OF BS 178 BULKHEAD LBL 5.7, WL 195; FABRICATED A NEW REPLACEMENT WEB; INSTALLED REPAIR PART IAW B737-300 SRM 51-70-13 FIG 1.