FTW98LA419

NTSB accident investigation · Hundere Kitfox II · Somerset, TX · September 26, 1998

Accident · No injuriesLimited investigationFinal report
Date
September 26, 1998, 14:00 local (19:00 UTC)
Place
Somerset, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N8114HHundere Kitfox II
Weather
Visual (VMC) · Day
Status
Completed · report February 16, 2001
Report
Approved by Office Director
FAA report
19980926042379A
Case key
44089

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 inadvertent stall. Factors were the wind sock that was displaying inaccurate information, the gusty wind condition, and the pilot's lack of experience in the tailwheel equipped airplane.

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 - initial climb
Stall - inadvertentPilot in commandCause
Airport facilities,wind direction indicator - inaccurateFactor
Weather condition - gustsFactor
Lack of experiencePilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - grass

Analysis

The 97 hour non-instrument rated, private pilot lost control of the tailwheel equipped airplane during takeoff from runway 13. The pilot reported that prior to departure he observed aircraft taking off and landing to the north and to the south. He then observed the wind sock in the 'calm' position, and taxied the airplane to the approach end of runway 13 for takeoff. During the takeoff roll the airplane encountered a gust of wind from 120 degrees, which 'lifted the airplane off the ground prematurely.' The airplane 'stalled;' subsequently, the left wing contacted the ground first and the airplane ground looped. After the accident occurred the pilot determined that the windsock had been stuck against its support pole and was not providing an accurate indication of wind speed and direction. The pilot stated that the wind was from 120 degrees at 8 knots gusting to 15 knots at the time of the time of the accident. Additionally, the pilot had accumulated a total of 7.7 hours in the airplane at the time of the accident.

Factual narrative

On September 26, 1998, at 1400 central daylight time, a Hundere Kitfox II amateur built experimental airplane, N8114H, was substantially damaged following a loss of control during takeoff from the Cannon Field Airport, Somerset, Texas. The non-instrument rated private pilot and his passenger were not injured. The airplane was owned and operated by a private individual. Visual meteorological conditions prevailed and no flight plan was filed for the Title 14 CFR Part 91 local personal flight. The flight was originating at the time of the accident.

The 97 hour pilot reported in the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2) that the preflight inspection and run-up did not reveal any anomalies. The pilot stated that prior to departure he observed aircraft taking off and landing to the north and to the south. He then observed the windsock in the "calm" position and taxied the airplane to the approach end of runway 13 for takeoff.

The pilot reported that during the takeoff roll from the 2,880 foot turf runway, the tailwheel equipped airplane encountered a gust of wind from 120 degrees, which "lifted the airplane off the ground prematurely." The pilot stated that the airplane attained a height of 10 feet AGL when it "stalled." Subsequently, the left wing contacted the ground first and the airplane ground looped. The airplane came to rest upright, on grassy terrain west of the runway.

The pilot reported that after the accident he discovered that the wind sock was caught against its support pole; consequently, the wind sock was displaying an inaccurate reading of wind speed and direction.

The pilot reported that at the time of the accident the winds were from 120 degrees at 8 knots, gusting to 15 knots.

The pilot stated that he had accumulated a total of 7.7 hours in the airplane at the time of the accident.

Examination of the airplane by the FAA inspector revealed that the left wing spar, left wing strut, and fuselage sustained structural damage. Additionally, the pilot reported that the left wing flaperon separated from the airplane and the rudder was damaged.

Aircraft

Registration
N8114H
Reported as
Hundere Kitfox II
Category
Airplane, amateur-built
Serial number
310
Airframe hours
60
Engine
Bombardier ROTAX 532, 64 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Edmund H. Johnstone
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · January 1, 1998 · 12 hours before
Departed
53TX
Airport
53TX · Cannon Field, runway 13, 2,880 × 0 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
24
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
97 total · 8 in this make and model · 53 as pilot in command · 4 in the last 90 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 8 knots, gusting 15
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F

FAA reports on this event · 1

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