DFW08CA203

NTSB accident investigation · Collard Dragonfly · Big Sping, TX · August 4, 2008

Accident · Serious injuriesData collectionFinal report
Date
August 4, 2008, 16:00 local (21:00 UTC)
Place
Big Sping, TX
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N793TWCollard Dragonfly
Defining event
Approach-VFR pattern final: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report September 26, 2008
Report
Approved by Office Director
Parties
FAA FSDO
FAA report
20080804841669A
Case key
68652

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

Loss of aircraft control due to inadvertent penetration of a dust devil.

Findings · 1

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Wind: dust devil/whirlwindEnvironmental issues › Conditions/weather/phenomena · Not specifiedColorado Aerosports DRAGONFLY: 1 caseAll aircraft: 38 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The private pilot reported departing the airport in "challenging wind and [thermal] conditions." An automated weather reporting facility on the airport reported winds 50 degrees from runway heading at 11 knots gusting to 19 knots. After six successful touch-and-gos, the pilot entered the traffic pattern for a seventh approach. While turning base to final the pilot experienced a loss of aircraft control and impacted terrain. The pilot reported that dust devils were "prevalent in the area at that time."

Factual narrative

The private pilot reported departing the airport in "challenging wind and [thermal] conditions." An automated weather reporting facility on the airport reported winds 50 degrees from runway heading at 11 knots gusting to 19 knots. After six successful touch-and-gos, the pilot entered the traffic pattern for a seventh approach. While turning base to final the pilot experienced a loss of aircraft control and impacted terrain. The pilot reported that dust devils were "prevalent in the area at that time."

Aircraft

Registration
N793TW
Reported as
Collard Dragonfly
Category
Airplane
Serial number
089
Airframe hours
64
Engine
Hirth 3701, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Colorado Aerosports LLC
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · November 1, 2007
Departed
BPG · Big Sping, TX
Airport
BPG · Big Spring Mc Mahon-Wrinkle, runway 17R, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
49
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
August 1, 2006
Seat
Front
Flight hours
630 total · 39 in this make and model · 630 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 11 knots, gusting 19
Visibility
10 statute miles
Lowest ceiling
None
Temperature
95 °F, dew point 52 °F
Altimeter
30.04 inHg
Observed at
BPG

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.