Aircraft Accident/Incident Report

Guthrie, Texas 79236
Friday, August 13, 1999 11:00 CDT

NTSB Narrative Summary Released at Completion of Accident

During a downwind takeoff, the airplane exited the departure end of the runway and nosed over. The 2,500-feet long private grass airstrip was not equipped with a windsock. The pilot stated that he noted that the wind was calm by observing a pennant which is mounted to the antenna of a service vehicle located at the north end of the runway. He initiated the takeoff roll to the south, and the airplane became momentarily airborne. The airplane began to settle to the ground, and the pilot aborted the takeoff. The pilot stated that the airplane would not get out of ground effect. The pilot reported that at the time of the accident, a weather front passed over the airstrip, resulting in a sudden windshift and a tailwind.

NTSB Probable Cause Narrative

The pilot's inadequate weather evaluation prior to takeoff. Factors associated with the accident were an inadequate wind direction indicator, a sudden windshift, and a tailwind.

Event Information

Type of Event Accident
Event Date 8/13/1999
Event Day of the Week Friday
Time of Event 1100
Event Time Zone Central Daylight Time
Event City GUTHRIE
Event State TEXAS
Event Country --
Zipcode of the event site 79236
Event Date Year 1999
Event Date Month 8
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 On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 2700
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 30
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
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) 858
NTSB Notification Source --
NTSB Notification Date Aug 16 1999 12:00AM
NTSB Notification Time 500
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 12 2000 11:50AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6042K
NTSB Number FTW99LA221
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Air Tractor
Aircraft Model 502B
Aircraft Series Identifier 502B
Aircraft Serial Number 502B-0244
Certified Max Gross Weight 6900
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
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 100 Hour
Date of Last Inspection Feb 23 1999 12:00AM
Airframe hours since last inspection --
Airframe Hours 2749
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name MCADOO FLYING SERVICE INC.
Aircraft Owner Street Address 233 S. AYRSHIRE STREET
Aircraft Owner City CROSBYTON
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 79322
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code TNDG
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 Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Aerial Application
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code NONE
Departure City
Departure State
Departure Country
Departure Time 1100
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 16
Runway Length 2500
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --