Hendrickson Flying Service Airport
Aircraft Accident/Incident Report

Creston, Illinois 61068
Wednesday, July 27, 2011 19:30 CDT

NTSB Narrative Summary Released at Completion of Accident

According to the pilot, he was landing the helicopter on a helicopter cart when its skid got caught on the cart and the helicopter subsequently rolled over. The pilot reported there were no mechanical malfunctions with the helicopter during the flight, and substantial damage was sustained to the helicopter tailboom when it rolled. Dynamic rollover is the tendency of a helicopter to continue rolling when the critical angle is exceeded, if one skid is on the ground, and the helicopter is pivoting around that point. Dynamic rollover is possible when a skid is caught by a projection on the surface or when landing on a slope.

NTSB Probable Cause Narrative

The pilot's failure to maintain adequate skid clearance from the helicopter cart during landing, resulting in a dynamic rollover.

Event Information

Type of Event Accident
Event Date 7/27/2011
Event Day of the Week Wednesday
Time of Event 1930
Event Time Zone Central Daylight Time
Event City Creston
Event State ILLINOIS
Event Country --
Zipcode of the event site 61068
Event Date Year 2011
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 415643N
Event Location Longitude 0885526W
Event Location Airport Hendrickson Flying Service
Event Location Nearest Airport ID IL93
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 889
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1935 Central Daylight Time
Direction of event from weather observation facility (degrees) 260
Weather Observation Facility ID RPJ
Elevation of weather observation facility 781
Distance of event from weather observation facility (units?) 10
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) 28
Dew Point at event time (in degress fahrenheit) 24
Wind Direction (degrees magnetic) 180
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) 29.8
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KRPJ 280035Z AUTO 18006KT 10SM CLR 28/24 A2980
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 28796
NTSB Notification Source Operator, Mr. Hendrickson
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Sep 29 2011 10:07AM
User who most recently changed record andj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N10009
NTSB Number CEN11CA524
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name TEXAS HELICOPTER CORP
Aircraft Model OH-13H/M74A
Aircraft Series Identifier --
Aircraft Serial Number 79-032
Certified Max Gross Weight 2750
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 10 2010 12:00AM
Airframe hours since last inspection --
Airframe Hours 5347
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name HENDRICKSON FLYING SERVICE INC
Aircraft Owner Street Address 21532 QUITNO RD
Aircraft Owner City ROCHELLE
Aircraft Owner State IL
Aircraft Owner Country USA
Aircraft Owner Zipcode 61068-9413
Operator is an individual? No
Operator Name HENDRICKSON FLYING SERVICE INC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 21532 QUITNO RD
Operator City ROCHELLE
Operator State IL
Operator Country USA
Operator Zip code 61068-9413
Operator Code HNKG
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Agriculture
Operator Certificate Number HNKG752E
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) Aerial Application
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code IL93
Departure City Creston
Departure State IL
Departure Country USA
Departure Time 1630
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code IL93
Destination City Creston
Destination State IL
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Aug 4 2011 3:57PM
User who most recently changed record male
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --