Aircraft Accident/Incident Report

Hearne, Texas 77859
Friday, August 30, 2002 13:15 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that he was defoliating a cotton field, starting on the south side working to the north, making alternate east and west spray passes, and that an oil pumping rig was located approximately 8 to 10 passes into the field. The pilot also stated that on all passes leading up to the pumping rig, he observed it not pumping, remaining off on the down stroke. As the airplane was making a pass on the north edge of the pumping rig in a westerly direction, the left wing obstructed the pilot's view of the obstacle. Subsequently, the left wing impacted the horse head on its upstroke, severing the outboard 6 to 8 feet of the wing. The pilot pulled the throttle back to idle and allowed the airplane to descend into the cotton field where it came to rest inverted. Oil company personnel at the accident site reported that oil pumping rigs are prevalent in the area. It was also reported that this particular pumping unit was on a timer and would shut off periodically.

NTSB Probable Cause Narrative

The pilot's failure to maintain clearance with a pump rig while maneuvering during an aerial application flight. A factor was the object.

Event Information

Type of Event Accident
Event Date 8/30/2002
Event Day of the Week Friday
Time of Event 1315
Event Time Zone Central Daylight Time
Event City Hearne
Event State TEXAS
Event Country --
Zipcode of the event site 77859
Event Date Year 2002
Event Date Month 8
MidAir Collision Indicator --
On Ground Collision occurred ? --
Event Location Latitude 304855N
Event Location Longitude 0963602W
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
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) 15
Air Temperature at event time (in degrees celsius) 33
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.95
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
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) 13082
NTSB Notification Source FAA Communication Center
NTSB Notification Date Aug 30 2002 12:00AM
NTSB Notification Time 1600
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Apr 29 2003 4:26PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Houston, Texas

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9193Y
NTSB Number FTW02LA245
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 AT-401
Aircraft Series Identifier --
Aircraft Serial Number 401-0932
Certified Max Gross Weight 4000
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 Jul 1 2002 12:00AM
Airframe hours since last inspection 35
Airframe Hours 2553
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Corpora Aerial Service Inc.
Aircraft Owner Street Address P.O. Box 867
Aircraft Owner City Hearne
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 77859
Operator is an individual? No
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 MSUG
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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 --
Departure City Hearne
Departure State TX
Departure Country USA
Departure Time 1300
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 Maneuvering - aerial application
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Feb 6 2003 12:09PM
User who most recently changed record STAM
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --