N804DF

Substantial
Minor

Robinson R44 IIS/N: 11265

Accident Details

Date
Saturday, July 5, 2008
NTSB Number
DFW08CA177
Location
Canyon Lake, TX
Event ID
20080806X01165
Coordinates
29.916944, -98.305557
Aircraft Damage
Substantial
Highest Injury
Minor
Fatalities
0
Serious Injuries
0
Minor Injuries
1
Uninjured
2
Total Aboard
3

Probable Cause and Findings

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

Aircraft Information

Registration
N804DF
Make
ROBINSON
Serial Number
11265
Engine Type
Reciprocating
Year Built
2006
Model / ICAO
R44 IIR44
Aircraft Type
Rotorcraft
No. of Engines
1

Registered Owner (Historical)

Name
ROYAL AERONAUTICAL SERVICES USA LLC
Address
1621 CENTRAL AVE
Status
Deregistered
City
CHEYENNE
State / Zip Code
WY 82001-4531
Country
United States

Analysis

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.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# DFW08CA177