CEN12LA445

NTSB accident investigation · Czech Aircraft Works Spol Sro SportCruiser · Waynesville, OH · July 15, 2012

Accident · No injuriesLimited investigationFinal report
Date
July 15, 2012, 13:30 local (17:30 UTC)
Place
Waynesville, OH
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N516JGCzech Aircraft Works Spol Sro SportCruiser
Defining event
Takeoff-rejected takeoff: Runway excursion
Weather
Visual (VMC) · Day
Status
Completed · report November 26, 2012
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration - Cincinnati FSDO
FAA report
20120715014289A
Case key
84327

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 airplane's collision with fence posts during an aborted takeoff due to a sudden change in wind direction.

Findings · 3

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: sudden wind shiftEnvironmental issues › Conditions/weather/phenomena · Effect on operationCzech Aircraft Works Spol Sro SPORTCRUISER: 1 caseAll aircraft: 114 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 pilot reported that the accident occurred while he was departing his private airstrip. He stated that he noticed an “abrupt change” in the wind direction about halfway down the runway during the takeoff roll. The wind direction reportedly shifted from a left crosswind to a tailwind condition. The pilot stated that he decided to abort the takeoff because he was unsure if the airplane would clear trees located off the departure end of the runway. He attempted to steer the airplane into an adjacent field, but it impacted two fence posts hidden in shrubbery before coming to rest. The pilot reported that there were no preaccident mechanical malfunctions or failures that would have precluded normal operation of the airplane. Although the weather data obtained from a nearby observing station established that the wind direction was variable, it did not corroborate the pilot's observation of a tailwind condition. However, there were several thunderstorms in the vicinity of the accident site that could have resulted in localized wind changes that were not detected by the weather observing station.

Factual narrative

On July 15, 2012, about 1330 eastern daylight time, a Czech Aircraft Works SPOL SRO model SportCruiser light-sport airplane, N516JG, was substantially damaged during an aborted takeoff at a private airstrip near Waynesville, Ohio. The sport pilot and passenger were not injured. The airplane was registered to and operated by Three Wings, LLC, under the provisions of 14 Code of Federal Regulations Part 91 without a flight plan. Day visual meteorological conditions prevailed for the personal flight. The local area flight was originating at the time of the accident. The pilot reported that the accident occurred while he was departing his private airstrip to the west. The east/west grass runway was 2,000 feet long by 150 feet wide. He stated that he noticed an “abrupt change” in the wind direction about halfway down the runway during the takeoff roll. The wind direction reportedly shifted from a left crosswind to a tailwind condition. The pilot stated that he decided to abort the takeoff because he was unsure if the airplane would clear trees located off the departure end of the runway. He attempted to steer the airplane into an adjacent field, but it impacted two fence posts hidden in some shrubbery before coming to rest. The fuselage, firewall, and both wings were substantially damaged during the accident. The pilot reported that there were no preimpact mechanical malfunctions or failures that would have precluded normal operation of the airplane. The closest weather observing station was located at the Dayton-Wright Brothers Airport (KMGY), about 6.3 miles west-northwest of the private airstrip. At 1330, the KMGY automated surface observing system reported the following weather conditions: wind 220 degrees at 8 knots, visibility 10 miles; few clouds at 2,800 feet above ground level, temperature 28 degrees Celsius, dew point 21 degrees Celsius, altimeter setting 30.13 inches of mercury. The report contained a remark that there was lightning observed in the distant southeast. Available weather radar data indicated that at the time of the accident there were several convective cells surrounding the accident site. The weather observation station also recorded the wind direction and speed at one minute intervals. A review of the wind data recorded between 1325 and 1335 showed that the wind direction varied between 199 and 266 degrees, and was between 5 and 10 knots.

Aircraft

Registration
N516JG
Reported as
Czech Aircraft Works Spol Sro SportCruiser
Category
Airplane
Serial number
08SC224
Airframe hours
444
Engine
Rotax 912 ULS, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Three Wings, LLC
Registered owner
Three Wings, LLC
Airworthiness certificate
Special, Special light-sport (Special)
Last inspection
Annual · April 20, 2012
Departed
PVT · Waynesville, OH
Destination
PVT · Waynesville, OH
Airport
PVT · Private Airstrip, runway 27, 2,000 × 150 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
67
Injuries
None
Certificate
Sport Pilot
Airplane ratings
Single-engine land
Medical
Sport pilot
Seat
Left
Flight hours
230 total · 220 in this make and model · 146 as pilot in command · 29 in the last 90 days · 8 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 70 °F
Altimeter
30.12 inHg
Observed at
KMGY, 6 nm away

Docket · 5

The files NTSB released with the investigation on September 14, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.1 MB in all.

FAA reports on this event · 1

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