What was found
YYC - AFTER START ON NR 2 ENGINE LEVER RAISED TO IDLE MASTER CAUTION ENGINE AND ENGINE CONTROL ON OVERHEAD PANEL ILLUMINATED. GROUND CREW AND OTHER ACFT REPORTED SMOKE AND TORCHING ON NR 2 ENGINE. NR 2 ENGINE LEVER PLACED TO CUT OUT PER TAIL PIPE FIRE CHECK LIST. SMOKE IN CABIN NOTED AND A CABIN EVACUATION WAS INITIATED. WHEN CHECK LIST COMPLETED NO SMOKE IN CABIN OR FROM ENGINE WAS NOTED. FIRE HANDLES PULLED BUT NOT TURNED. WHILE PERFOMING VISUAL INSPECTION NOTED OIL IN THE TAIL PIPE. REPLACED NR 2 ENGINE DUE TO OIL LEAK PER TASK CARD 78471000.