As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YYC - DURING C-CHECK, WHILE REMOVING THE VERTICAL STAB, THE VERTICAL STAB WAS DAMAGED AT THE FORWARD RIB WEB BS 1007 UPPER END RESULTING IN A DENT 3 INCHES LONG, 4 INCHES WIDE, .250 INCHES DEEP. REPAIRED THE VERTICAL STAB FORWARD RIB WEB BS 1007 UPPER END IAW SRM 51-40-1 AND 51-30-2. (M)