What was found
DEPARTED NORTH BOUND. EXPERIENCED A BURNING SCENT IN CABIN IN FLIGHT AND LATER CLAIMED TO SEE SMOKE EMITTING FROM ENGINE INSTRUMENT CLUSTER. PILOT THEN DIVERTED AND LANDED. FOLLOWING MORNING ACFT`S INSTRUMENT CLUSTER (WHERE THE PILOT CLAIMED TO SEE SMOKE), INSTRUMENT PANEL, CABIN FLOOR, CARGO COMPARTMENT, TUNNEL, ENGINE COMPARTMENT, AND EXHAUST HEATER MANIFOLD WERE ALL INSPECTED FOR ANY DEFECTS THAT MIGHT HAVE CAUSED THE PROBLEM. NO CAUSE WAS EVER FOUND. ACFT WAS FOUND TO BE IN AN AIRWORTHY CONDITION AND RETURNED TO SERVICE.