Newton City-County Airport
Aircraft Accident/Incident Report

Walton, Kansas 67151
Thursday, May 26, 2011 14:23 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot and flight mechanic were on a maintenance flight and had entered an autorotation to check the flat-pitch rotor speed, which was satisfactory. During recovery, about 500 feet above ground level, the pilot applied the throttle but the engine did not respond. The autorotational descent continued and the pilot executed a power-off running landing to a wheat field. As the helicopter touched down, a main rotor blade struck the tail boom, separating the tail boom at its attach point. Both main rotor blades impacted terrain and the helicopter came to rest on its right side. The pilot and flight mechanic were uncertain as to whether the engine had stopped running during the autorotation recovery or whether it was only operating at idle rpm. No preimpact anomalies were discovered that would have prevented normal operation. The engine was removed and run in a test cell, and the engine met specification power. The reason for the loss of engine power could not be determined.

NTSB Probable Cause Narrative

A loss of engine power for undetermined reasons because postaccident examination of the airframe and engine revealed no anomalies.

Event Information

Type of Event Accident
Event Date 5/26/2011
Event Day of the Week Thursday
Time of Event 1423
Event Time Zone Central Daylight Time
Event City Walton
Event State KANSAS
Event Country --
Zipcode of the event site 67151
Event Date Year 2011
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 380914N
Event Location Longitude 0971707W
Event Location Airport Newton City-County Airport
Event Location Nearest Airport ID EWK
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 6
Degrees magnetic from airport --
Airport Elevation 1533
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1415 Central Daylight Time
Direction of event from weather observation facility (degrees) 176
Weather Observation Facility ID KEWK
Elevation of weather observation facility 1533
Distance of event from weather observation facility (units?) 6
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) 20
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 30
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
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 KEWK 261935z AUTO 04008KT 10SM CLR 20/05 A3001
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) 30843
NTSB Notification Source FAA ACE Regional Operations Ce
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Dec 12 2012 2:16PM
User who most recently changed record bakd
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1815
NTSB Number CEN11LA356
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BELL
Aircraft Model 206
Aircraft Series Identifier L1
Aircraft Serial Number 45299
Certified Max Gross Weight 4150
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 1
Cabin Crew Seats --
Passenger Seats 3
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection May 15 2011 12:00AM
Airframe hours since last inspection 98
Airframe Hours 25443
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type C126
Aircraft Owner Name GM LEASING CO LLC
Aircraft Owner Street Address 1318 SMEDE HWY
Aircraft Owner City BROUSSARD
Aircraft Owner State LA
Aircraft Owner Country USA
Aircraft Owner Zipcode 708518
Operator is an individual? No
Operator Name AIR MD LLC
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 516 N. OLIVER ROAD - HANGAR J
Operator City NEWTON
Operator State KS
Operator Country USA
Operator Zip code 67114
Operator Code YEWA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number YEWA827K
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) Other Work Use
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code EWO
Departure City Newton
Departure State KS
Departure Country USA
Departure Time 1412
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code EWO
Destination City Newton
Destination State KS
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Dec 6 2012 6:07PM
User who most recently changed record latt
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 Yes
Medical Flight --