Aircraft Accident/Incident Report

Minden, Nebraska 68959
Sunday, July 18, 2010 20:50 CDT

NTSB Narrative Summary Released at Completion of Accident

While en route to the destination airport, the pilot began detecting heavy vibrations emanating from the helicopter. He performed a scan of the engine instruments, all of which indicated that it was operating within the normal ranges. Unsure of the malfunction, the pilot elected to perform a cautionary autorotation to a plowed field. During the autorotation, the pilot landed hard and the helicopter subsequently rolled over. During the touchdown sequence the helicopter incurred substantial damage. A postaccident examination of the airframe and engine did not reveal any evidence of a preimpact anomaly.

NTSB Probable Cause Narrative

The pilot's inadequate flare during an autorotation, which resulted in a hard landing and subsequent rollover.

Event Information

Type of Event Accident
Event Date 7/18/2010
Event Day of the Week Sunday
Time of Event 2050
Event Time Zone Central Daylight Time
Event City Minden
Event State NEBRASKA
Event Country --
Zipcode of the event site 68959
Event Date Year 2010
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport --
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 2055 Central Daylight Time
Direction of event from weather observation facility (degrees) 332
Weather Observation Facility ID KEAR
Elevation of weather observation facility 2131
Distance of event from weather observation facility (units?) 14
Time Zone of the weather observation CDT
Lighting Conditions Dusk
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) 24
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 80
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) 29.96
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 27917
NTSB Notification Source Pilot
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Oct 26 2010 1:49PM
User who most recently changed record bowl
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N410JM
NTSB Number CEN10LA408
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 SCHWEIZER
Aircraft Model 269C
Aircraft Series Identifier --
Aircraft Serial Number S1906
Certified Max Gross Weight 2050
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Feb 18 2010 12:00AM
Airframe hours since last inspection 35
Airframe Hours 1482
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name DAKOTA EQUIPMENT SALES AND LEASING LLC
Aircraft Owner Street Address 3841 SKY PARK RD
Aircraft Owner City GRAND ISLAND
Aircraft Owner State NE
Aircraft Owner Country USA
Aircraft Owner Zipcode 68801-9144
Operator is an individual? No
Operator Name DAKOTA EQUIPMENT SALES AND LEASING LLC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 3841 SKY PARK RD
Operator City GRAND ISLAND
Operator State NE
Operator Country USA
Operator Zip code 68801-9144
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 No
Departure Airport Code 0V3
Departure City Minden
Departure State NE
Departure Country USA
Departure Time 2000
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 0V3
Destination City Minden
Destination State NE
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 4 2010 3:21PM
User who most recently changed record aguj
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --