What was found
(CAN) PILOT OF AIRCRAFT FOUND "A PART" BENEATH THE COWLING. COWLINGS WERE REMOVED & ENGINE INSPECTED FOR "MISSING PARTS". REAR SUPPORT BEARING (ROLLER TYPE) FOUND MISSING ON LAMAIR STARTER. PILOT REPORTED FURTHER THAT STARTER WAS STILL ENGAGED TO FLYWHEEL AT THIS TIME. LOSS OF REAR BEARING CAUSED STARTER SHAFT TO DROP OUT OF ALIGNMENT WITH CRANKSHAFT AND LOCKED BENDIX GEAR ONTO FLYWHEEL. SARTER REPLACED WITH SERVICEABLE UNIT. OLD UNIT B.E.R. SCRAP.