Aircraft Accident/Incident Report

El Dorado, Oklahoma 73521
Sunday, March 22, 1987 9:55 CST

NTSB Narrative Summary Released at Completion of Accident

THE PILOT STATED THAT DURING TAKEOFF FROM A COUNTY ROAD, BLACK SMOKE STARTED COMING OUT OF THE ENGINE EXHAUST. THE AIRCRAFT THEN COLLIDED WITH A TREE AND A POST CAUSING SUBSTANTIAL DAMAGE. IT WAS FOUND THAT THE CARBURETOR HEAT SYSTEM HAD BEEN MODIFIED AND THE CARBURETOR FLAPPER VALVE WAS STUCK IN THE CLOSED POSITION.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 3/22/1987
Event Day of the Week Sunday
Time of Event 955
Event Time Zone Central Standard Time
Event City EL DORADO
Event State OKLAHOMA
Event Country --
Zipcode of the event site 73521
Event Date Year 1987
Event Date Month 3
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 Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation --
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) 0
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 7
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency FAA
NTSB Docket Number (internal use) 2039
NTSB Notification Source --
NTSB Notification Date Mar 22 1987 12:00AM
NTSB Notification Time 1030
Fiche Number and/or location -used to find docket information 35601
Date of most recent change to record Dec 13 2000 1:57PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3655G
NTSB Number FTW87DPJ06
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Air Tractor
Aircraft Model AT301
Aircraft Series Identifier AT301
Aircraft Serial Number 292
Certified Max Gross Weight 7050
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 Annual
Date of Last Inspection Jan 1 1987 12:00AM
Airframe hours since last inspection 35
Airframe Hours --
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name JACKSON COUNTY SPRAYING SVC.
Aircraft Owner Street Address 500 N SPURGEON
Aircraft Owner City ALTUS
Aircraft Owner State OK
Aircraft Owner Country
Aircraft Owner Zipcode 73521
Operator is an individual? --
Operator Name JACKSON COUNTY SPRAY CO.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 500 N.SPURGEON
Operator City ALTUS
Operator State OK
Operator Country
Operator Zip code 73521
Operator Code TJNG
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
Departure City EL DORADO
Departure State OK
Departure Country
Departure Time 955
Departure Time Zone CST
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 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --