As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YYC - DURING C3 CHECK, FUSELAGE INTERIOR FORWARD SIDE AT STATION 1088.2 BETWEEN STRINGERS 9L AND 10L PYLON SPAR PART NUMBER 670-37140-001 TOP SURFACE HAS A DRILL MARK. MAINTENANCE BLENDED OUT DAMAGE IAW EA R-54-86 AND REO 670-54-51-007. RESTORED SURFACE.