FTW95LA169

NTSB accident investigation · Stembridge Spezio · Duncan, OK · April 15, 1995

Accident · No injuriesLimited investigationFinal report
Date
April 15, 1995, 16:00 local (22:00 UTC)
Place
Duncan, OK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N3068Stembridge Spezio
Weather
Visual (VMC) · Day
Status
Completed · report June 29, 1995
Report
Approved by Office Director
FAA report
19950415008209A
Case key
19394

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

The pilot's improper compensation for the wind conditions. A factor was gusty winds.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightTakeoff
Weather condition - gustsFactor
Compensation for wind conditions - improperPilot in commandCause
In flight collision with terrain/waterTakeoff
Terrain condition - high vegetation

Analysis

At about two feet off the grass runway 18, with the airspeed at 70 mph, a gust of wind blew the airplane toward plum bushes about 8 feet from the west edge of the airstrip. The pilot reported that before corrective action took effect (right aileron down and left rudder) the right wing tip hit the bushes and the airplane turned about 160 degrees and impacted the terrain. Reported winds were from the east at 5 knots gusting to 20 knots.

Factual narrative

On April 15, 1995, at 1600 central standard time, an experimental Stembridge SPEZIO, N3068, was substantially damaged during takeoff near Duncan, Oklahoma. The private pilot and one passenger were not injured. Visual meteorological conditions prevailed for the local personal flight.

The Pilot/Operator report stated that runway 18 was used and "just after lift off at about 70 mph, about 2 feet off the grass, a strong gust of wind blew us toward plum bushes about 8 feet from the west edge of the strip." The pilot stated that "before corrective action took effect (right aileron down and some left rudder) the right wing tip hit the bushes and the aircraft turned about 160 degrees and landed tail first." Damage occurred as the left main landing gear folded under the wing and the left horizontal stabilizer bent. Pilot reported winds were from the east at 5 knots gusting to 20 knots.

Aircraft

Registration
N3068
Reported as
Stembridge Spezio
Category
Airplane, amateur-built
Serial number
154-1
Airframe hours
300
Engine
Lycoming O-290-G4, 125 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Thomson, Billy & Norma
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · November 5, 1994 · 15 hours before
Airport
Thomson Field, runway 18, 2,640 × 50 ft, grass/turf

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
65
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
365 total · 29 in this make and model · 213 as pilot in command · 15 in the last 90 days · 8 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 5 knots, gusting 20
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F

FAA reports on this event · 1

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