North American Navion Safety Record

A total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot’s improper fuel planning and failure to see and avoid the communications tower support guy wire.

A total loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.

A total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no evidence of any preaccident mechanical malfunctions or failures that would have that would have precluded normal operation.

The pilot's early rotation of the airplane and his failure to attain a positive climb rate during takeoff with the airplane near its aft center of gravity limit from a runway with little margin for error.

The pilot’s failure to maintain airspeed while maneuvering for an emergency landing, which resulted in an aerodynamic stall. Contributing to the accident was the loss of engine power for undetermined reasons during initial climb.

The pilot's intentional abrupt maneuver during low altitude cruise flight to avoid obstructions ahead, resulting in an in-flight collision with terrain and a building. Contributing to the accident were the failure of the pilot to obtain a preflight weather briefing and his flight into known IMC.

The partial loss of engine power during takeoff, as a result of air being sucked into the fuel system due to a worn fuel selector valve stem and a bent detent ring.

The loss of engine power after takeoff due to a fuel selector valve leak and low altitude and low airspeed at the time of power loss. A factor was the recommended maintenance service for the fuel selector not performed by the airplane owner/pilot.

The partial loss of engine power during cruise flight as a result of air being sucked into the fuel system due to a worn fuel selector valve stem and a hardened and brittle fuel selector valve O-ring. Factors include no suitable landing area within the aircraft's reduced power gliding distance, and a pole at the location where the pilot found it necessary to make an emergency landing.

the pilot's mismanagement of the fuel system in that he had the fuel selector positioned to a tank which did not contain sufficient fuel for the flight. Factors associated with the accident were the crop and the ditch which the airplane encountered during the forced landing.

the pilot's attempt to continue visual flight operations into an area of known instrument meteorological conditions resulting in controlled flight into rising terrain.

The separation of the number 3 cylinder due to improper overhaul procedures, and the failure to adequately torque the cylinder hold down nuts and through bolts to specification.