Aircraft Accident/Incident Report

Aplington, Iowa 50604
Thursday, August 14, 2003 17:05 CDT

NTSB Narrative Summary Released at Completion of Accident

The airplane impacted power lines and terrain during an aerial application flight. The pilot reported that subsequent to impacting power lines the airplane lost pitch control. The pilot stated the airplane "impacted the ground in a very nose-down attitude completely destroying the aircraft."

NTSB Probable Cause Narrative

The pilot not maintaining proper altitude/clearance from the wire during the aerial application flight. The factor to the accident was the power line.

Event Information

Type of Event Accident
Event Date 8/14/2003
Event Day of the Week Thursday
Time of Event 1705
Event Time Zone Central Daylight Time
Event City Aplington
Event State IOWA
Event Country --
Zipcode of the event site 50604
Event Date Year 2003
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 423513N
Event Location Longitude 0925231W
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 1100
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1654 Central Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID ALO
Elevation of weather observation facility 873
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 9000
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) 5
Air Temperature at event time (in degrees celsius) 29
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.29
Density Altitude (feet) 2343
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) 15432
NTSB Notification Source FAA
NTSB Notification Date Aug 15 2003 12:00AM
NTSB Notification Time 815
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jun 3 2004 1:28PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Des Moines, Iowa

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4339S
NTSB Number CHI03LA261
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-301
Aircraft Series Identifier --
Aircraft Serial Number 301-0019
Certified Max Gross Weight 5000
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 Aug 1 2002 12:00AM
Airframe hours since last inspection 160
Airframe Hours 7500
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Ronald L. Cook
Aircraft Owner Street Address 1752 280th St.
Aircraft Owner City Falix
Aircraft Owner State IA
Aircraft Owner Country USA
Aircraft Owner Zipcode 51052
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 PKJG
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 --
Departure Point Same as Event No
Departure Airport Code 4C7
Departure City Ackley
Departure State IA
Departure Country USA
Departure Time 1630
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code --
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Maneuvering
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Mar 19 2004 3:26PM
User who most recently changed record SULP
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 --