What was found
(CAN) ENGINE SHUTDOWN DURING PUSHBACK WHILE THE AIRCRAFT WAS BEING PUSHED BACK FROM THE GATE, SMOKE STARTED COMING OUT OF THE EXHAUST ALONG WITH HIGH ITT INDICATION ON LT ENGINE. ENGINE WAS SHUTDOWN AND AIRCRAFT WAS BROUGHT BACK TO THE GATE WHERE AN INSPECTION REVEALED OIL TRACES IN EXHAUST AREA. ENGINE IS BEING REMOVED FOR INVESTIGATION AND REPAIRED. MANUFACTURER WILL INVESTIGATE TO ESTABLISH ROOT CAUSE AND SUPPLEMENT THE REPORT ONCE THE INFORMATION IS AVAILABLE.