Circle Town Airport
Aircraft Accident/Incident Report

Circle, Montana 59215
Friday, June 24, 2011 8:05 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot stated that he loaded the hopper of the airplane with chemicals for an agricultural flight and proceeded to take off. During the initial climb, at approximately 50 feet above ground level (agl), the pilot noticed a tailwind from the southwest and at 60 feet agl noticed that his climb rate had diminished. He performed a forced landing in the wash across a main road, and on touchdown the main landing gear separated and the airplane proceeded inside a gully where the wings sustained substantial damage. At the time of the accident, the density altitude was approximately 3,600 feet. The pilot reported no mechanical issues or malfunctions that would have precluded normal operation and he felt that he was unable to attain an adequate flying speed due to the high humidity.

NTSB Probable Cause Narrative

The pilot's failure to attain and maintain an adequate airspeed during initial climb.

Event Information

Type of Event Accident
Event Date 6/24/2011
Event Day of the Week Friday
Time of Event 805
Event Time Zone Mountain Daylight Time
Event City Circle
Event State MONTANA
Event Country --
Zipcode of the event site 59215
Event Date Year 2011
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 472520N
Event Location Longitude 1053401W
Event Location Airport Circle Town Airport
Event Location Nearest Airport ID 4U6
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 2422
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 753 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 360
Weather Observation Facility ID KOLF
Elevation of weather observation facility 1900
Distance of event from weather observation facility (units?) 41
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 900
Sky/Lowest/Cloud Conditions Few
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) 17
Dew Point at event time (in degress fahrenheit) 16
Wind Direction (degrees magnetic) 250
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) 29.77
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KJDN 241448Z AUTO 33012G19KT 18/09 A2981 KGDV 241
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 28758
NTSB Notification Source FAA
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Sep 27 2011 12:30PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2362D
NTSB Number WPR11CA286
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 AIR TRACTOR
Aircraft Model AT301
Aircraft Series Identifier NO SERIES
Aircraft Serial Number 301-0404
Certified Max Gross Weight 7798
Aircraft Category Airplane
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 Dec 13 2010 12:00AM
Airframe hours since last inspection 145
Airframe Hours 7379
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Harris Spraying Inc.
Aircraft Owner Street Address --
Aircraft Owner City Circle
Aircraft Owner State MT
Aircraft Owner Country USA
Aircraft Owner Zipcode 59215
Operator is an individual? No
Operator Name Harris Spraying Inc.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Circle
Operator State MT
Operator Country USA
Operator Zip code 59215
Operator Code --
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 --
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 4U6
Departure City Circle Airport
Departure State MT
Departure Country USA
Departure Time 803
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 4U6
Destination City Circle Airport
Destination State MT
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 14 2011 9:37AM
User who most recently changed record ellv
Since inspection or accident Time of Accident
Event Location Runway Number and Location 30
Runway Length 4100
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --