Jones Field Airport
Aircraft Accident/Incident Report

Bonham, Texas 75418
Wednesday, August 15, 2007 7:00 CDT

NTSB Narrative Summary Released at Completion of Accident

The sport pilot departed in his single-engine experimental airplane for a local flight. Shortly after takeoff, a witness observed the airplane make a sharp (hard) right turn and nose dive straight into the ground. Another witness said the airplane departed with full power at a good rate of climb and speed, followed shortly after by the sound of "normal" power reduction. The airplane came to rest in a field adjacent to the runway and was destroyed by post-impact fire. The pilot purchased the airplane approximately four months prior to the accident and had logged approximately 22 hours in the airplane, which had accrued a total of 50 hours. An invoice dated a month prior indicated that the pilot had purchased wing skin and rivets for the left wing. However, it could not be determined if any work had been done to the left wing prior to the accident because the maintenance logbooks were not made available for review. Toxicological testing was conducted by the FAA Toxicology Accident Research Laboratory, in Oklahoma City, Oklahoma. The report of testing noted negative results for carbon monoxide, cyanide, ethanol, and drugs. The report noted 6200 mg/dl of glucose in urine, 0 mg/dl of glucose in vitreous fluid, and 9 percent Hemoglobin A1C. According to the toxicological report, "Elevated postmortem urine glucose levels could be caused by diabetes mellitus or several other medical conditions, which may or may not have been a factor in the accident." The FAA had no record of application for airman medical certificate for the pilot since 1992. No medical certificate is required for operation under sport pilot regulations.

NTSB Probable Cause Narrative

The pilot's failure to maintain control of the airplane on take off, which resulted in an inadvertent stall and subsequent collision with terrain.

Event Information

Type of Event Accident
Event Date 8/15/2007
Event Day of the Week Wednesday
Time of Event 700
Event Time Zone Central Daylight Time
Event City Bonham
Event State TEXAS
Event Country --
Zipcode of the event site 75418
Event Date Year 2007
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 333628N
Event Location Longitude 0961027W
Event Location Airport Jones Field Airport
Event Location Nearest Airport ID F00
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 618
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 755 Central Daylight Time
Direction of event from weather observation facility (degrees) 330
Weather Observation Facility ID DUA
Elevation of weather observation facility 698
Distance of event from weather observation facility (units?) 23
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 6500
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) 25
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
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 Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 22663
NTSB Notification Source FAA ROC
NTSB Notification Date Aug 15 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 20 2007 6:59AM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office Dallas, Texas

Aircraft Involved

Aircraft #1

Aircraft Registration Number N557SX
NTSB Number DFW07LA183
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Huggles
Aircraft Model Sonex
Aircraft Series Identifier --
Aircraft Serial Number 0557
Certified Max Gross Weight 1100
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Ronnie D. Wren
Aircraft Owner Street Address --
Aircraft Owner City Leonard
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 75452
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 --
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) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code F00
Departure City Bonham
Departure State TX
Departure Country USA
Departure Time 700
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code F00
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Takeoff - initial climb
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 15 2007 2:32PM
User who most recently changed record CASH
Since inspection or accident --
Event Location Runway Number and Location 35
Runway Length 4000
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --