What was found
(CAN) WHILE ON THE GROUND, DURING THE TWO MINUTES COOL DOWN PERIOD AFTER LANDING, THE CREW REPORTED TAIL PIPE FIRE ON THE ENGINE, FOLLOWED BY A LOUD NOISE AND UNCOMMANDED ENGINE SHUTDOWN. THE CREW DID DISCHARGE FIRE EXTINGUISHER BOTTLE AS A PRECAUTION. AN OIL LEAK WAS FOUND NEAR THE ENGINE INLET AS WELL AS INTERNAL ENGINE DAMAGE.