What was found
(CAN) DURING INITIAL CLIMB, A RT ENGINE FIRE WARNING OCCURRED. THE ENGINE WAS SHUTDOWN AND THE ACFT RETURNED TO THE POINT OF ORIGIN WHERE AN UNEVENTFUL SINGLE ENGINE LANDING WAS ACCOMPLISHED. POST FLIGHT INSPECTION FOUND A CRACKED AIRFRAME EXHAUST, A FRACTURED 6 & 7 BEARING VENT TUBE AND FRACTURED POWER TURBINE BLADES. THERE WAS NO EVIDENCE OF FIRE DAMAGE. THE ENGINE WILL BE FORWARDED TO MFG FOR INVESTIGATION AND REPAIRS.