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 CORROSION WAS FOUND ON SKIN OF THE # 1 ENGINE PYLON UPPER FAIRING JUST FORWARD OF THE UPPER ATTACH POINT, SKIN BULGED BETWEEN SKIN JOINTS AS VIEW FROM UPPER SURFACE. MAINTENANCE REMOVED FASTENERS AND LIFTED SKIN ; CLEANED, BLENDED, TREATED, AND PRIMED CORRODED AREA; APPLIED MOLDABLE PLASTIC SHIM; RESECURED SKIN PER AWA E.R. 03-5455-02272-SS1.