Mccook Regional Airport
Aircraft Accident/Incident Report

Mccook, Nebraska 69001
Thursday, September 28, 2006 18:20 CDT

NTSB Narrative Summary Released at Completion of Accident

The amateur built helicopter impacted the ground during a test flight following the failure of a welded joint at a cyclic control cable bracket resulting in a loss of control authority. A post impact fire ensued destroying the helicopter. The pilot reported he was in a low hover when the tail came up and the helicopter tilted. One of the skids subsequently caught the ground causing the helicopter to roll over. Examination of the helicopter revealed that a welded joint failed at a cyclic control cable bracket on the main rotor mast. Failure of the welded bracket caused the loss of input control authority from the cyclic control to the main rotor.

NTSB Probable Cause Narrative

The failure of a welded joint at a cyclic control cable bracket located on the main rotor mast which made control of the helicopter impossible for the pilot.

Event Information

Type of Event Accident
Event Date 9/28/2006
Event Day of the Week Thursday
Time of Event 1820
Event Time Zone Central Daylight Time
Event City McCook
Event State NEBRASKA
Event Country --
Zipcode of the event site 69001
Event Date Year 2006
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 401223N
Event Location Longitude 1003532W
Event Location Airport McCook Regional Airport
Event Location Nearest Airport ID MCK
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 2583
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1853 Central Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID MCK
Elevation of weather observation facility 2583
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CDT
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) 19
Dew Point at event time (in degress fahrenheit) 4
Wind Direction (degrees magnetic) 180
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) 29.96
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KMCK 282253Z AUTO 20007KT 10SM CLR 21/03 A29
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 21352
NTSB Notification Source FAA
NTSB Notification Date Sep 29 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 FAA-Lincoln FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N565CH
NTSB Number CHI06LA273
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Daub
Aircraft Model Pawnee Chief
Aircraft Series Identifier --
Aircraft Serial Number PC00002
Certified Max Gross Weight --
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed --
ELT Activated --
ELT Aided Location of Event Site --
ELT Type --
Aircraft Owner Name Clear Horizons Inc.
Aircraft Owner Street Address 4020 Guilford Road
Aircraft Owner City Rockford
Aircraft Owner State IL
Aircraft Owner Country USA
Aircraft Owner Zipcode 61107
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) Flight Test
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code MCK
Departure City McCook
Departure State NE
Departure Country USA
Departure Time 1800
Departure Time Zone CDT
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 Hover - in ground effect
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 23 2007 10:04AM
User who most recently changed record DINC
Since inspection or accident --
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --