Aircraft Accident/Incident Report

Tonopah, Nevada 89049
Friday, August 21, 2009 15:00 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot was providing aerial surveillance of a car that was in an off-road rally race. A passenger recalled that they had just climbed over a hill, and made a low banking turn to get behind a car that was in the race. He saw a steep cliff-like ridge ahead, and was concerned about hitting it. As they cleared the ridge by about 20 feet, he heard the engine sound change pitch. The helicopter banked right, and slowed down. The passenger heard the pilot say "no" several times as well as “come on,” followed by the sounding of a horn. The helicopter collided with the ground, touching down on the skids. The helicopter turned as it went downhill, and rolled over onto its right side. A postaccident examination of the airframe and engine revealed no anomalies that would have precluded normal operation. The density altitude was calculated to be about 10,300 feet. Examination of the performance charts for the helicopter indicated that, at the weather parameters for this flight, the power required for the maneuvers attempted exceeded the power available.

NTSB Probable Cause Narrative

The pilot’s failure to maneuver the helicopter within its performance capabilities while at a low altitude in mountainous terrain and in high density altitude conditions.

Event Information

Type of Event Accident
Event Date 8/21/2009
Event Day of the Week Friday
Time of Event 1500
Event Time Zone Pacific Daylight Time
Event City Tonopah
Event State NEVADA
Event Country --
Zipcode of the event site 89049
Event Date Year 2009
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 380704N
Event Location Longitude 1174257W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1456 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 90
Weather Observation Facility ID KTPH
Elevation of weather observation facility 5426
Distance of event from weather observation facility (units?) 25
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 35
Dew Point at event time (in degress fahrenheit) -3
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 17
Altimeter Setting at event time (in. Hg) 30.11
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 3
Injury Total All 3
Investigating Agency NTSB
NTSB Docket Number (internal use) 28139
NTSB Notification Source FAA AWP Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record May 26 2011 10:21AM
User who most recently changed record rows
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N19DV
NTSB Number WPR09LA411
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name ROBINSON
Aircraft Model R44
Aircraft Series Identifier II
Aircraft Serial Number 11027
Certified Max Gross Weight 2500
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 686
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Dooley Aviation, Inc.
Aircraft Owner Street Address --
Aircraft Owner City Glendale
Aircraft Owner State AZ
Aircraft Owner Country USA
Aircraft Owner Zipcode 85302
Operator is an individual? No
Operator Name Dooley Aviation, Inc.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Glendale
Operator State AZ
Operator Country USA
Operator Zip code 85302
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code TPH
Departure City Tonopah
Departure State NV
Departure Country USA
Departure Time 1400
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code TPH
Destination City Tonopah
Destination State NV
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 25 2011 2:04PM
User who most recently changed record coos
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --