SEA97LA139
1997-06-13 · WENDOVER, Utah, United States · Minor · 1 aircraft · Status: Completed
Airport ENV
Aircraft involved
Probable cause & findings
The pilot's failure to maintain directional control. Factors include the pilot's improper decision to continue his flight into an area where he had observed thunderstorms, and a thunderstorm outflow which created strong wind gusts that the aircraft encountered during the landing roll.
Factual narrative
On June 13, 1997, approximately 1920 mountain daylight time, the wing of a Cessna 172, N8776B, impacted the runway during the landing roll at Wendover Airport, Wendover, Utah. The private pilot and two of his passengers were not injured, but one passenger, who was thrown from the aircraft during the accident, received minor injuries. The aircraft, which was owned and operated by the pilot, sustained substantial damage. The 14 CFR Part 91 personal pleasure flight, which was operating in visual meteorological conditions, departed Salt Lake City Airport Number 2 about 40 minutes prior to the accident. No flight plan had been filed, and there was no report of an ELT activation. According to the pilot, as he was inbound to the Wendover Airport, he could see that thunderstorms had formed in the area near Wendover. But, because the weather was VFR at the airport, he elected to continue his flight to the planned destination instead of returning to Salt Lake City. At the time of the landing, the thunderstorms had moved closer to the airport, and the thunderstorm outflow was creating strong, gusty winds at the airport. During the landing roll, a strong quartering tailwind hit the aircraft from behind, and the aircraft tipped forward and to the side. The pilot was unable to keep the aircraft tracking straight down the runway, and the aircraft began to slide sideways and one wing impacted the runway surface. As the aircraft was coming to a stop, the right door swung open and one passenger fell from the aircraft. Within two minutes after the accident, hard rain started falling at the accident site. The pilot failed to return an NTSB Form 6120.1/2. While inbound to his destination, the pilot saw that thunderstorms had formed in the general area of the airport. Instead of returning to the point of departure, the pilot elected to continue on to the airport where he had planned to land. By the time he arrived at the airport, the thunderstorms had moved closer to the runway, and strong, gusty winds were being created by the thunderstorm outflow. During the landing roll, the aircraft was hit by a strong quartering tailwind, and the pilot was unable to maintain directional control. During his attempts to keep the aircraft tracking down the runway, the aircraft started sliding sideways, and one wing impacted the runway surface. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1997_SEA97LA139.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
Matched on aircraft type or causal vocabulary (thunderstorm). All research papers
- NASA NTRS 2023 · Reprint (Version printed in journal) Finite Element Simulation of Three Full-Scale Crash Tests for Cessna 172 Aircraft
The NASA Emergency Locator Transmitter Survivability and Reliability project was initiated in 2013 to assess the crash performance standards for the next generation of emergency locator transmitter (E…
- NASA NTRS 2019 · Conference Paper Crash Testing and Simulation of a Cessna 172 Aircraft: Pitch Down Impact Onto Soft Soil
During the summer of 2015, NASA Langley Research Center conducted three full-scale crash tests of Cessna 172 (C-172) aircraft at the NASA Langley Landing and Impact Research (LandIR) Facility.
- NASA NTRS 2019 · Technical Memorandum (TM) Simulating the Impact Response of Three Full-Scale Crash Tests of Cessna 172 Aircraft
During the summer of 2015, a series of three full-scale crash tests were performed at the Landing and Impact Research Facility located at NASA Langley Research Center of Cessna 172 aircraft.
- Embry-Riddle Scholarly Commons 2024 · Journal article (IJAAA) The Impact of Thunderstorms on Take-off Data in South Africa
Aviation and meteorology are entwined disciplines, as aviation occurs in the atmosphere. Prevailing weather conditions at take-off are of utmost importance to aviation.
- NASA NTRS 2019 · Technical Memorandum (TM) Thunderstorm hazards flight research: Storm hazards 1980 overview
A highly instrumented NASA F-106B aircraft, modified for the storm hazards mission and protected against direct lightning strikes, was used in conjunction with various ground based radar and lightning…
- NASA NTRS 2019 · Conference Proceedings Operational evaluation of thunderstorm penetration test flights during project Storm Hazards '80
The National Aeronautics and Space Administration is conducting a research project called Storm Hazards '80 in order to study the prediction, detectability and avoidance of the hazards of severe storm…