What was found
MSP - FLT 1314 - AFTER GATE ARRIVAL AND ENGINE SHUTDOWN, TAILPIPE FIRE NOTED IN NR 1 ENGINE. CREW DISCHARGED BOTH FIRE BOTTLES AND GROUND CREW SUPPLEMENTED WITH DRY CHEMICAL EXTINGUISHERS. REMAINING PAX DEPLANED VIA JETBRIDGE. REPLACED BOTH FIRE BOTTLES FOR NR 1 ENGINE. REPLACED NR 1 ENGINE DUE TO OIL LEAK AT BYPASS DUCT BEARING OIL LINE AND CONTAMINATION WITH DRY EXTINGUISHER CHEMICAL. SYSTEM LEAK AND GROUND CHECKED NORMAL OPERATION. (M)