Aircraft Accident/Incident Report

Donnelly, Idaho 83615
Tuesady, August 16, 2005 17:15 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot said that he had landed at the site several times before, but that much construction work had been done since his last visit. He said that as he descended to his landing zone, the main rotor downwash from his helicopter created "brown-out" visibility conditions. He floated past his landing spot and the helicopter's main rotor struck a tree. The pilot said that pieces of the main blades subsequently damaged the vertical and horizontal stabilizer, and the tail rotor was damaged.

NTSB Probable Cause Narrative

The pilot's failure to maintain clearance of a tree during a landing attempt due to loss of visibility from a self induced brown-out condition. Contributing factors were the pilot's failure to identify a hazardous landing site, and the tree.

Event Information

Type of Event Accident
Event Date 8/16/2005
Event Day of the Week Tuesday
Time of Event 1715
Event Time Zone Mountain Daylight Time
Event City Donnelly
Event State IDAHO
Event Country --
Zipcode of the event site 83615
Event Date Year 2005
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 443740N
Event Location Longitude 1160829W
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 1650 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 355
Weather Observation Facility ID MYL
Elevation of weather observation facility 5020
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 11000
Sky/Lowest/Cloud Conditions Few
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) 27
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.01
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 4
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 18840
NTSB Notification Source Boise, ID, FSDO
NTSB Notification Date Aug 17 2005 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 20 2005 6:27AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Boise, ID

Aircraft Involved

Aircraft #1

Aircraft Registration Number N500FU
NTSB Number SEA05CA173
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 Hughes
Aircraft Model 369E
Aircraft Series Identifier --
Aircraft Serial Number 0199E
Certified Max Gross Weight 3000
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 100 Hour
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Heliflite LLC.
Aircraft Owner Street Address 4622 Hillcrest View Dr.
Aircraft Owner City Boise
Aircraft Owner State ID
Aircraft Owner Country USA
Aircraft Owner Zipcode 83705
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
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 No
Departure Airport Code EUL
Departure City Caldwell
Departure State ID
Departure Country USA
Departure Time 1600
Departure Time Zone MDT
Destination Same as Local Flt crash at destination city
Destination Airport Code NONE
Destination City Donnelly
Destination State ID
Destination Country USA
Specific Phase of Flight Hover - in ground effect
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 14 2005 3:50PM
User who most recently changed record STAM
Since inspection or accident --
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --