What was found
FUEL SMELL NOTICED BY CREW MEMBER SITTING IN FORWARD FACING PILOT SIDE SEAT DURING TAKEOFF AND CRUISE. WHEN THE AIRCRAFT WAS SLOWED BELOW 60 KNOTS, THE SMELL DISSAPATED AND THE CREWMEMBER REPORTED NO SMELL IN A HOVER. SMELL SEEMS TO ONLY BE PRESENT IN CABIN ABOVE 50-60 KNOTS IAS. NOTE, INSPECTION FOUND NO DISCREPANCIES, WAS NOT ABLE TO DUPLICATE DURING GROUND RUNS OR IN FLIGHT, A/C WAS RETURNED TO SERVICE.