What was found
(CAN) SHORTLY AFTER TAKEOFF, THE CABIN FILLED WITH FUMES AND LIGHT SMOKE. THE AIRCRAFT RETURNED TO THE POINT OF DEPARTURE. ENGINE WAS SPLIT AT THE C-FLANGE. NO OBVIOUS DAMAGE OR ABNORMALITIES WERE FOUND. A NEW NR 2 BEARING COVER AND GASKET WERE INSTALLED. ENGINE TEST RUN AND PROBLEM FOUND TO PERSIST. ENGINE REMOVED AND COMPRESSOR SECTION TORN DOWN AT STANDARD AERO. FOUND THE CENTRIFUGAL COMPRESSOR RUBBING ON THE COMPRESSOR SHROUD HOUSING. CLEARANCES RESTORED, ENGINE RE-ASSEMBLED, INSTALLED, TEST RUN AND AIRCRAFT TEST FLOWN. FUMES AND SMOKE NO LONGER PRESENT. (X)