WPR11LA133
2011-02-12 · Bullfrog, Utah, United States · Fatal · 1 aircraft · Status: Completed
Airport KU07
Aircraft involved
Probable cause & findings
The pilot’s loss of control while maneuvering to land at an off-airport site.
Factual narrative
On February 12, 2011, at 1753 mountain standard time, a Buckeye Breeze LX powered parachute, N75752, impacted terrain while on approach to landing at a wilderness campsite, 30 miles north of the Bullfrog Basin Airport, Bullfrog, Utah. The student pilot operated the experimental category aircraft under the provisions of Title 14 Code of Federal Regulations Part 91. The pilot was fatally injured, and the powered parachute was substantially damaged. Visual meteorological conditions prevailed, and no flight plan had been filed. Witnesses reported that the pilot flew over their campsite three times to monitor the wind conditions. After the third pass, the pilot appeared to turn to land. Witnesses heard the engine power increase, however, the parachute started to descend steeply until they heard an impact. Review of amateur video filmed by a witness at the landing area revealed that the parachute flew low over the landing area at an altitude of 3-4 feet. As the parachute reached the end of the landing area and the canyon ledge, the engine sound increased in pitch, and the parachute pitched up abruptly, followed by a rapid descent and 180-degree turn before it dropped out of the video frame, descending beneath the canyon ledge. The wreckage was located below the canyon ledge on steeply sloped terrain. At 1655, the nearest weather reporting station located about 19 miles north of the campsite reported calm wind; clear skies; 60-statute miles of visibility; temperature 9 degrees Celsius (C); and dew point -6 degrees C. At the accident site, the home video revealed clear skies and no evidence of any wind conditions. Witnesses at a campsite where the pilot was preparing to land reported that he overflew the site three times to check the wind conditions before making a fourth pass at a low altitude. Review of a video taken by a witness revealed that the powered parachute was about 3 to 4 feet above the ground when it reached the end of the landing area that was on the edge of a canyon. The engine sound increased and the aircraft pitched up abruptly, followed by a rapid descent and 180-degree turn. The aircraft did not have sufficient altitude to clear the terrain and impacted below the canyon ledge on steep terrain. The video revealed clear skies with no indication of wind at the landing area. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-(general)-Not attained/maintained - C
Verbatim from NTSB's published report. Source file
NTSB_2011_WPR11LA133.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
External sources are reported, not agency: signal that something happened, not fact about what happened.
- TallyAero Live Wire Aviation press
- NTSB CAROL Agency ↗
- NTSB Docket Agency ↗
- Aviation Safety Network Aviation press ↗
- Kathryn's Report Aviation press ↗
- Aviation Herald Aviation press ↗
- AVweb Aviation press ↗
- Pilots of America Community ↗
- Reddit /r/flying Community ↗
- FlightAware Aviation press ↗
- AOPA accident database Aviation press ↗
- Google News News ↗
- DuckDuckGo News ↗
Related research
Matched on aircraft type or causal vocabulary (loss of control). All research papers
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER) A Scoping Review of Aviation Loss of Control Inflight Research
Loss of control – inflight (LOC-I) contributes to aircraft accidents at unacceptably high rates. Significant industry efforts and research have aimed to improve LOC-I prevention, detection, and recove…
- SKYbrary (Eurocontrol) 2024 · SKYbrary article Loss of Control In-Flight (LOC-I) — SKYbrary Knowledge Base
SKYbrary comprehensive knowledge-base entry on Loss of Control In-Flight — definitions, contributing factors, accident case studies (Air France 447, Colgan 3407), and prevention strategies.
- Semantic Scholar 2024 · Article (International Conference on Networking and Services) Risk Assessment of Loss of Control In-Flight Trajectories for Urban Air Mobility Safety
In Urban Air Mobility (UAM), maintaining a minimum separation between aircraft is a safety requirement, which becomes challenging amidst congested air traffic and off-nominal conditions, such as Loss …
- NTSB Aircraft Accident Reports 2022 · Accident report Loss of Control on Takeoff in Icing Conditions — Citation 560XL
Cessna Citation 560XL fatal takeoff icing accident, March 2018. Investigation of a Citation 560XL loss-of-control takeoff accident in icing conditions.
- Semantic Scholar 2021 · Article (Aviation) ANALYSIS OF GENERAL AVIATION FIXED-WING AIRCRAFT ACCIDENTS INVOLVING INFLIGHT LOSS OF CONTROL USING A STATE-BASED APPROACH
Inflight loss of control (LOC-I) is a significant cause of General Aviation (GA) fixed-wing aircraft accidents. The United States National Transportation Safety Board’s database provides a rich source…
- NASA NTRS 2021 · Presentation Use of Design of Experiments in Determining Neural Network Architectures for Loss of Control Detection
Abstract—We describe empirical methods for selecting a neural network architecture to implement belief state inference on generic commercial transport aircraft.