La Cholla Airpark Airport
Aircraft Accident/Incident Report

Tucson, Arizona 85737
Saturday, November 19, 2005 9:20 MST

NTSB Narrative Summary Released at Completion of Accident

The airplane entered a torque roll to the left during the initial climb shortly after takeoff. Numerous pilot witnesses observed the composite airplane on takeoff roll when the airplane began to drift to the left of centerline. Some observed dust below the left wing from the left main landing gear tire rolling in the dirt. The airplane lifted off the ground in a nose high pitch attitude and rolled 90 degrees to the left in a knife-edge turn. The airplane then continued to an inverted position, descended at a 45-degree nose low pitch attitude, and impacted the ground. All of the witnesses indicated that the engine seemed to be at full power during the entire event. Measurements of tire marks on the runway and tire tracks in the dirt to the east of the runway, indicated that the pilot continued with the takeoff roll even though the airplane was well east of the runway centerline and even departed the runway surface to the east. According to the airplane kit manufacturer, takeoffs with more than 70 percent torque were not recommended until the airplane reached 100 knots indicated airspeed. The kit manufacturer added that if one were to takeoff with more than 70-percent torque, below 100 knots, there would not be enough rudder authority to offset the torque/p-factor of the 725-horsepower engine/propeller. There was no record in the FAA database of the airplane receiving an experimental airworthiness certificate nor was there an endorsement in the logbook indicating that the pilot/builder had flown the requisite 40 hours of test flights prior to carrying passengers. The airplane was destroyed by impact and fire damage. The FAA inspector who responded to the accident site reported finding no anomalies with the identifiable components that would have prevented normal flight.

NTSB Probable Cause Narrative

The pilot's excessive use of power during takeoff, which resulted in an inadvertent torque roll shortly after lift off. Also causal was the pilot's failure to abort the takeoff when directional control could not be maintained during the takeoff roll.

Event Information

Type of Event Accident
Event Date 11/19/2005
Event Day of the Week Saturday
Time of Event 920
Event Time Zone Mountain Standard Time
Event City Tucson
Event State ARIZONA
Event Country --
Zipcode of the event site 85737
Event Date Year 2005
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 322648N
Event Location Longitude 1110010W
Event Location Airport La Cholla Airpark
Event Location Nearest Airport ID 57AZ
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0.5
Degrees magnetic from airport --
Airport Elevation 2940
Weather Briefing Completeness --
Investigator's weather source Witness
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) 20
Air Temperature at event time (in degrees celsius) 14
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
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 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 21618
NTSB Notification Source FAA
NTSB Notification Date Nov 19 2005 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jun 27 2007 1:15PM
User who most recently changed record NTSB\lema
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-SDL-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N660T
NTSB Number LAX06LA041
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name Tingle
Aircraft Model Special
Aircraft Series Identifier --
Aircraft Serial Number 1
Certified Max Gross Weight 3300
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 Retractable
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection Nov 1 2003 12:00AM
Airframe hours since last inspection 33
Airframe Hours 33
ELT Installed --
ELT Activated --
ELT Aided Location of Event Site --
ELT Type --
Aircraft Owner Name T2 Aviation, Inc.
Aircraft Owner Street Address 144 Village Dr. #38
Aircraft Owner City Incline Village
Aircraft Owner State NV
Aircraft Owner Country USA
Aircraft Owner Zipcode 89450
Operator is an individual? No
Operator Name Thomas H. Tingle
Operator Same as Owner? No
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 57AZ
Departure City Tucson
Departure State AZ
Departure Country USA
Departure Time 920
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code 18AZ
Destination City Carefree
Destination State AZ
Destination Country USA
Specific Phase of Flight Takeoff - initial climb
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 17 2007 1:57PM
User who most recently changed record STAM
Since inspection or accident Time of Accident
Event Location Runway Number and Location 19
Runway Length 4500
Runway Width 44
Sight Seeing flight No
Air Medical Flight No
Medical Flight --