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 THE RT WING LOWER SURFACE NR 5 SLAT TROMBONE CUTOUT HAS SMALL PIECE OF SKIN MISSING AT OUTBOARD END. MAINTENANCE REMOVED DAMAGED AREA OF SKIN RT WING LOWER SURFACE NR 5 SLAT TROMBONE CUTOUT, FABRICATED A NEW SECTION OF SKIN, AN INTERNAL SPLICE, AND WEB, AND INSTALLED REPAIR PARTS IAW AWA ER 15-5741-02221-SS1.