Robinson R44 II

Canyon Lake, TX — July 5, 2008

Event Information

DateJuly 5, 2008
Event TypeACC
NTSB NumberDFW08CA177
Event ID20080806X01165
LocationCanyon Lake, TX
CountryUSA
Coordinates29.91694, -98.30556
AirportCANYON LAKE
Highest InjuryMINR

Aircraft

MakeRobinson
ModelR44 II
CategoryHELI
FAR Part091
Aircraft DamageSUBS

Conditions

Light ConditionDAYL
WeatherVMC

Injuries

Fatal0
Serious0
Minor1
None2
Total Injured1

Event Location

Probable Cause

A total loss of tail rotor effectiveness. Contributing to the accident was the pilot's improper decision to operate inside the height velocity curve.

Full Narrative

The commercial pilot was conducting a photo flight with himself and two passengers in the four seat helicopter. The helicopter had been in a zero airspeed out of ground effect hover at approximately 40 to 50 feet above the ground for about 15 seconds when the pilot applied power to begin a vertical climb. According to the pilot, he then suddenly and without warning lost directional control, the helicopter began to spin nose right, and his application of full left pedal had no effect. The pilot initiated an autorotation and the helicopter landed hard on rough rocky sloping terrain between several trees. The crash caused substantial damage to the fuselage and airframe when the left skid gear partially collapsed and penetrated into the left rear passenger cabin floor area. The upper pylon was noticeably bent and wrinkled, and both main rotor blades were damaged. An on-scene investigation by an FAA maintenance inspector confirmed continuity and no apparent damage to the flight controls. There was no post-crash fire and the pilot and front seat passenger reported no injuries, but the left rear seat passenger suffered minor injuries and had to be carried out of the aircraft. The pilot reported the surface winds were light and variable, visibility 10 statute miles with scattered clouds at 3,000 feet, a temperature of 88 degrees, and an altimeter setting of 30.01 inches of mercury.

About This NTSB Record

This aviation event was investigated by the National Transportation Safety Board (NTSB). NTSB investigates all U.S. civil aviation accidents to determine probable cause and issue safety recommendations to prevent future accidents.

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