As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YVR - MAJOR REPAIR - DURING C-15 CHECK A 3 INCH CRACK WAS FOUND ON VERTICAL FLOORBEAM WEB AT LT OUTBOARD SIDE BS 695, LBL 57. MAINTENANCE REMOVED DAMAGED SECTION OF VERTICAL FLOORBEAM WEB AT LT OUTBOARD SIDE BS 695, LBL 57; FABRICATED A NEW REPLACEMENT SECTION OF WEB, A WEB FILLER, AND REPAIR DOUBLER; INSTALLED REPAIR PARTS IAW B737-200 SRM 51-40-2 FIG 1.