What was found
ON RETURN LEG OF ROUND TRIP, PILOT NOTICED AN ORANGE FLASH FRO THE RIGHT HAND ENGINE. ENGINE ITT STARTED RISING AND THE POWER STARTED RISING AND THE POWER STARTED SURGING. THE ENGINE WAS SECURED AND FEATHERED 45 MINUTES OUT. MADE UNEVENTFUL LANDING. NO DETERMINATION OF THE CAUSE OF FAILURE HAS MADE AT THIS TIME. THE OIL FILTER WAS CONTAMINATED WITH METALLIC PARTICLES AND THE COMPRESSOR SECTION WAS SEIZED UP. ENGINE HAS BEEN REMOVED AND REPLACED.