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-03 CHECK A SHEAR WEB WAS FOUND BUCKLED AND TORN AT BS 520, LBL 25. MAINTENANCE REMOVED DAMAGED SHEAR WEB. FABRICATED A NEW REPLACEMENT SHEAR WEB AND INSTALLED REPAIR PART IAW DWG 69-35365, AND B737-300 SRM 51-40-02.