N/A Airport
Aircraft Accident/Incident Report

Capron, Illinois 61012
Sunday, July 28, 2013 14:45 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot was applying a fungicide spray to a field when the helicopter began to lose altitude. The pilot tried to arrest the helicopter's descent while turning by increasing collective pitch, which resulted in a low main rotor speed. The helicopter impacted trees and terrain. Examination of the helicopter revealed no preaccident mechanical anomalies that would have precluded normal operation.

NTSB Probable Cause Narrative

The pilot's failure to maintain main rotor speed while maneuvering at low altitude during an agricultural application flight, which resulted in an uncontrolled descent into terrain.

Event Information

Type of Event Accident
Event Date 7/28/2013
Event Day of the Week Sunday
Time of Event 1445
Event Time Zone Central Daylight Time
Event City Capron
Event State ILLINOIS
Event Country --
Zipcode of the event site 61012
Event Date Year 2013
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 422360N
Event Location Longitude 0884709E
Event Location Airport N/A
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 1545 Central Daylight Time
Direction of event from weather observation facility (degrees) 335
Weather Observation Facility ID KJVL
Elevation of weather observation facility 808
Distance of event from weather observation facility (units?) 18
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 4000
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Broken
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) 9
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 15
Altimeter Setting at event time (in. Hg) 29.95
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 32206
NTSB Notification Source NTSB Central Region Duty Offic
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Oct 22 2013 10:57AM
User who most recently changed record galm
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9681R
NTSB Number CEN13LA448
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 ROBINSON
Aircraft Model R44
Aircraft Series Identifier --
Aircraft Serial Number 1046
Certified Max Gross Weight --
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 Annual
Date of Last Inspection Nov 24 2012 12:00AM
Airframe hours since last inspection --
Airframe Hours 1495
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Back Nine Aerial LLC
Aircraft Owner Street Address --
Aircraft Owner City Elkhorn
Aircraft Owner State WI
Aircraft Owner Country USA
Aircraft Owner Zipcode 53121
Operator is an individual? No
Operator Name Back Nine Aerial LLC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Elkhorn
Operator State WI
Operator Country USA
Operator Zip code 53121
Operator Code 4B9G
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number 4B9G257N
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 No
Departure Airport Code 57C
Departure City East Troy
Departure State WI
Departure Country USA
Departure Time 640
Departure Time Zone CDT
Destination Same as Local Flt crash at destination city
Destination Airport Code --
Destination City Capron
Destination State IL
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 21 2013 4:19PM
User who most recently changed record galm
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 No
Medical Flight --