Bell 206 Safety Record

The inadequate compensation for crosswind conditions and the directional control not obtained/maintained by the pilot during takeoff. Contributing factors were the crosswind and the planned approach to position the helicopter with a crosswind in order to perform hot refueling adjacent to the helideck refueling station.

The pilot's excessive movement of the helicopter's controls during an aborted landing, which resulted in a loss of control (dynamic rollover) and an in-flight collision with terrain.

The pilot's failure to maintain a minimum translational lift airspeed while maneuvering in high density altitude conditions at near maximum required torque and above the in ground effect hover altitude, that resulted in a loss of tail rotor effectiveness and a loss of control. The pilot's inadequate in flight planning in his failure to note and account for the power requirements necessary to conduct takeoffs and the slow maneuvering flight at the accident site were also causal.

The pilot's failure to maintain adequate terrain clearance/altitude while descending over mountainous terrain, and his continued flight into adverse weather. Factors contributing to the accident were clouds and a low ceiling.

The compressor discharge pressure line (Pc line) B-nut coming loose at the fuel control unit, which resulted in a total loss of engine power, and subsequent in-flight collision with trees during an autorotation. A factor associated with the accident was the improper installation of the Pc line B-nut by company maintenance personnel.

The dynamic rollover encountered by the pilot. Factors were the inadequate remedial action by the pilot due to his failure to prevent the rollover, and the inadequate facility with regard to the design of the landing platform.

The pilot's failure to maintain control of the helicopter due to a loss of tail rotor effectiveness. Factors contributing to this accident were the helicopter's low airspeed, low altitude, the crosswind, and the trees.

inadequate infligt planning/decision by the flight crew and the check pilot's failure to initiate remedial action in a timely manner. Contributing factors were the pilot-in-command's inadequate supervision of the check pilot, the check pilot's lack of recency of high altitude experience, and the high density altitude.

The improper flare by the pilot receiving instruction, which resulted in the hard landing. A contributing factor was the flight instructor's inadequate supervision.

The loss of tail rotor drive as a result of a blanket coming in contract with the tailrotor blades, after the aft cargo door was left unsecured. Contributing factors were the lack of suitable terrain for the forced landing, and the failure of the medical crewmember to properly secure the aft cargo door.

The pilot's continued flight into adverse weather conditions, and his improper landing flare resulting in a hard landing. A contributing factors was the fog.

the pilot's failure to properly interpret and confirm a faulty tachometer instrument indication and his improper flare during the ensuing precautionary autorotation, which resulted in a hard landing. Also causal was the failure of the tachometer.

The pilot's attempt to takeoff during known adverse weather conditions and failure to maintain control of the helicopter while maneuvering. Contributing factors were the gusty and high wind conditions.

The pilot's failure to monitor his fuel supply which resulted in a power loss due to fuel exhaustion, and the pilot's misjudged flare, which resulted in a hard landing.

The pilot's failure to maintain altitude/clearance from obstacles during cruise flight, which resulted in the helicopter striking a transmission line, and subsequently the ground.

The pilot's inadequate in-flight planning, which resulted in an angle of approach in relative wind conditions conducive to a loss of helicopter tail rotor effectiveness. A factor was the obstacles surrounding the landing field.