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-20 CHECK A CRACK WAS FOUND ON FUSELAGE EXTERNAL SKIN AT AUXILIARY POWER UNIT DISCHARGE DISC (RED) ATTACH RIVET. MAINTENANCE CUTOUT CRACK AND PERFORMED HFEC INSPECTION TO VERIFY CRACK WAS CONTAINED, FABRICATED A SMALL REPAIR DOUBLER, AND INSTALLED REPAIR PART IAW B737-200 SRM 53-30-3, FIG.43, PG. 175.