NTSB CAROL · Event
Event ANC15LA057
Aircraft involved
Probable cause & findings
The pilot's failure to maintain adequate distance from surrounding terrain during the takeoff sequence, which resulted in the airplane contacting the terrain, prematurely becoming airborne, and subsequently entering an aerodynamic stall.
Factual narrative
On July 24, 2015, about 1300 Alaska daylight time, a tailwheel-equipped Found Aircraft Canada, Inc., FBA-2C1 airplane, N798, sustained substantial damage after a loss of control during takeoff from an unimproved airstrip near Sennett Point, Unimak Island, Alaska. The certificated commercial pilot and two passengers sustained no injuries. The airplane was registered to the United States Department of the Interior, and operated by the United States Fish and Wildlife Service, under the provisions of Title 14 Code of Federal Regulations (CFR) Part 91 as a public aircraft operations flight. Visual meteorological conditions prevailed, and a visual flight rules (VFR) flight plan was filed and activated. During an interview with a Department of the Interior, Senior Air Safety Investigator, the pilot stated that the selected airstrip consisted of a dogleg of about 150 feet, followed by about a 25-degree right turn for an additional takeoff area of about 1,000 feet, totaling about 1,150 feet of available takeoff distance. About 100 feet after making the required turn, the pilot realized he had not made enough correction to the right to get lined up with the straight portion of the takeoff area and was drifting left. The airplane became airborne after contacting a berm about 5 feet in height, entered an aerodynamic stall, impacted the tundra in a left wing down attitude, bounced, and came to rest about 180 degrees from the takeoff heading. The closest weather reporting facility is Cold Bay Airport, Cold Bay, Alaska, approximately 85 miles northeast of the accident site. At 1253, an aviation routine weather report (METAR) from the Cold Bay Airport was reporting in part: wind from 160 degrees at 7 knots; sky condition few at 500 feet agl, broken at 1,000 feet agl; visibility 10 statute miles; temperature 55 degrees F; dew point 54 degrees F; barometric pressure 29.91 inHg. The commercial pilot reported that, during a local public flight, he attempted to take off from an unimproved airstrip that included a dogleg right turn. About 100 ft after making the required turn, the pilot realized that he had not corrected enough to the right to get lined up with the straight portion of the takeoff area and that the airplane was drifting left. His failure to maintain adequate distance from surrounding terrain resulted in the airplane contacting a 5-ft-high berm, inadvertently becoming airborne, and entering an aerodynamic stall. The airplane subsequently impacted the tundra in a left-wing-down attitude, bounced, and then came to rest about 180 degrees from the takeoff heading. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Airspeed-Not attained/maintained - C
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Angle of attack-Not attained/maintained - C
- C Personnel issues-Psychological-Attention/monitoring-Monitoring environment-Pilot - C
- C Environmental issues-Physical environment-Terrain-(general)-Not specified - C
- — Environmental issues-Physical environment-Terrain-Rough terrain-Contributed to outcome
Verbatim from NTSB's published report. Source file
NTSB_2015_ANC15LA057.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (stall, loss of control). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- Semantic Scholar 2016 · Article (Interacción)
Trajectory Recovery System: Angle of Attack Guidance for Inflight Loss of Control
This paper describes the design and development of an ecological display to aid pilots in the recovery of an In-Flight Loss of Control event due to a Stall (ILOC-S).
- NTSB Aircraft Accident Reports 2010 · Accident report
Loss of Control on Approach — Colgan Air Flight 3407
Colgan Air 3407 / Continental Connection (Q400) Buffalo NY, February 12, 2009 — 50 fatalities. Definitive investigation of the Colgan 3407 stall-stick-pusher crash on approach to Buffalo.
- NASA NTRS 2026 · Conference Paper
Computational Analysis of Steady State Aerodynamics of Transonic Truss-Braced Wing Configuration in Deep Stall
This study presents a computational investigation of steady state aerodynamics of the Subsonic Ultra-Green Aircraft Research (SUGAR) Transonic Truss-Braced Wing (TTBW) configuration over a wide range …
- 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…
- arXiv 2025 · arXiv preprint
Quadratic Programming Approach to Flight Envelope Protection Using Control Barrier Functions
Ensuring the safe operation of aerospace systems within their prescribed flight envelope is a fundamental requirement for modern flight control systems.
- 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.
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