Aircraft Accident/Incident Report

Minden, Nevada 89423
Tuesady, February 7, 2006 8:02 PST

NTSB Narrative Summary Released at Completion of Accident

During a short-distance positioning flight, the helicopter descended uncontrolled into terrain about 5 minutes after departure. There was evidence that the main rotor diverged from its normal plane of rotation and severed the tailboom. Review of the pilot's personal flight logbooks showed that he had over 500 hours of flight time in helicopters. Visual meteorological conditions prevailed at the time of the accident with light winds and clear sky conditions. Examination of the wreckage showed that the fuel control return fuel line B-nut was not threaded to the fuel control fitting assembly and was melted. Metallurgical examination could not ascertain whether or not the B-nut was secured to the fuel control prior to the accident.

NTSB Probable Cause Narrative

The divergence of the main rotor from its normal plane of rotation for an undetermined reason, which resulted in main rotor/tail boom contact and loss of control.

Event Information

Type of Event Accident
Event Date 2/7/2006
Event Day of the Week Tuesday
Time of Event 802
Event Time Zone Pacific Standard Time
Event City Minden
Event State NEVADA
Event Country --
Zipcode of the event site 89423
Event Date Year 2006
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 385768N
Event Location Longitude 1194920W
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 753 Pacific Standard Time
Direction of event from weather observation facility (degrees) 240
Weather Observation Facility ID TVL
Elevation of weather observation facility 6264
Distance of event from weather observation facility (units?) 13
Time Zone of the weather observation PST
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) 10
Dew Point at event time (in degress fahrenheit) -7
Wind Direction (degrees magnetic) 30
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.4
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 21355
NTSB Notification Source FAA
NTSB Notification Date Feb 7 2006 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Apr 25 2007 2:54PM
User who most recently changed record NTSB\lema
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-RNO-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N447SH
NTSB Number LAX06FA104
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Robinson
Aircraft Model R44 II
Aircraft Series Identifier --
Aircraft Serial Number 10367
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 Conditional
Date of Last Inspection Oct 1 2005 12:00AM
Airframe hours since last inspection --
Airframe Hours 122.4
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name DRACOR
Aircraft Owner Street Address 1000 Kingsbury Grade
Aircraft Owner City Gardnerville
Aircraft Owner State NV
Aircraft Owner Country USA
Aircraft Owner Zipcode 89460
Operator is an individual? No
Operator Name Patrick Samal
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Gardnerville
Operator State NV
Operator Country USA
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 MEV
Departure City Minden
Departure State NV
Departure Country USA
Departure Time 755
Departure Time Zone PST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Unknown
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Apr 17 2007 3:53PM
User who most recently changed record NTSB\HAMG
Since inspection or accident Last Inspection
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --