Aircraft Accident/Incident Report

Paris, Tennessee 38242
Monday, April 21, 2008 9:50 CDT

NTSB Narrative Summary Released at Completion of Accident

The certificated commercial pilot was the first registered owner of the amateur-built light sport airplane, but he did not build the airplane. On the day of the accident, after two aerial application flights, he returned to his airport to replenish the application chemical for a third trip to the same agricultural field. About 30 minutes later, a witness heard the engine "sputter" during a spray run, and observed the airplane begin a climbing right turn back towards the airport. The engine stopped and restarted, and the airplane began another climb in the direction of the airport. The engine stopped a second time, and two witnesses saw the airplane descend without engine power into a wooded area. The airplane was substantially damaged, and the pilot was fatally injured. Autopsy results indicated that the pilot had diabetes, coronary artery disease, an enlarged heart, and gallstones. In addition, he was taking a medication commonly prescribed for neurological pain, and another for smoking cessation, both of which had the potential to cause distraction or impairment. It was not clear what role, if any, the medical conditions or medications played in the accident. He did not note any medications or medical conditions on his most recent application for medical certificate, but it is possible that the medications were initially prescribed since that application. At the time of the accident, the airplane and engine had accumulated approximately 89 hours since new. The pilot had previously experienced engine stoppage problems, and had conducted at least one forced landing due to an engine stoppage. Subsequent to that forced landing, and in the weeks just prior the accident, the pilot installed an electric fuel pump, which was in addition to the existing engine-driven fuel pump. Post-accident examination of the airplane indicated that the engine fuel system was not configured or equipped in accordance with the engine manufacturer's published guidance. Differences included fuel lines that were not thermally shrouded, lack of a fuel pump bypass circuit, lack of a fuel return line, and pump output pressure which exceeded the engine manufacturer's limits. The engine manufacturer's guidance contained multiple statements that such differences could result in engine problems and/or stoppage.

NTSB Probable Cause Narrative

A fuel system configuration that was not in accordance with the engine manufacturer's published guidance, which resulted in a complete loss of engine power due to fuel starvation.

Event Information

Type of Event Accident
Event Date 4/21/2008
Event Day of the Week Monday
Time of Event 950
Event Time Zone Central Daylight Time
Event City Paris
Event State TENNESSEE
Event Country --
Zipcode of the event site 38242
Event Date Year 2008
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 361820N
Event Location Longitude 0882714W
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 --
Investigator's weather source Weather Observation Facility
Time of the weather observation 955 Central Daylight Time
Direction of event from weather observation facility (degrees) 45
Weather Observation Facility ID HOP
Elevation of weather observation facility 573
Distance of event from weather observation facility (units?) 47
Time Zone of the weather observation CDT
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) 7
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) 11
Wind Direction (degrees magnetic) 100
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.08
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) 26454
NTSB Notification Source FAA Eastern Region ROC
NTSB Notification Date Apr 21 2008 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Mar 31 2010 12:03PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office Memphis, TN

Aircraft Involved

Aircraft #1

Aircraft Registration Number N101GP
NTSB Number NYC08LA165
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 Dragon Fly Aviation
Aircraft Model GT-500
Aircraft Series Identifier --
Aircraft Serial Number 397
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 1
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 89
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name Joel Pennington
Aircraft Owner Street Address --
Aircraft Owner City Cottage Grove
Aircraft Owner State TN
Aircraft Owner Country USA
Aircraft Owner Zipcode 38224
Operator is an individual? No
Operator Name Joel D. Pennington
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Cottage Grove
Operator State TN
Operator Country USA
Operator Zip code 38224
Operator Code --
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 --
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 NONE
Departure City Paris
Departure State TN
Departure Country USA
Departure Time 930
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City Paris
Destination State TN
Destination Country USA
Specific Phase of Flight Emergency descent/landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 30 2010 9:44AM
User who most recently changed record johb
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --