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-19 CHECK A 2 INCH CRACK WAS FOUND IN STRAP ON BOTTOM OF BEAM AT BS 312, RBL 33, WL 200. CRACK IS ENTIRE WIDTH OF STRAP; STOP DRILL IS NOT REQUIRED. FABRICATED A REPAIR PLATE AND INSTALLED REPAIR PART IAW B737-300 SRM 53-10-51 FIG 204 PG 214 - 219.