ANC19LA004
2018-10-07 · North Pole, Alaska, United States · Serious · 1 aircraft · Status: Completed
Airport 78AA
Aircraft involved
Probable cause & findings
The student pilot's decision to fly the weight-shift-controlled airplane with no training in the airplane type, which resulted in a loss of control and impact with terrain shortly after takeoff.
Factual narrative
On October 7, 2018, about 1500 Alaska daylight time, an unregistered weight-shift controlled, Airborne X-series Redback "Trike" aircraft, sustained substantial damage following a loss of control and impact with terrain shortly after takeoff from Lakewood Airport (78AA), North Pole, Alaska. The student pilot sustained serious injuries. The airplane was owned and operated by the pilot as a 14 Code of Federal Regulations Part 91 visual flight rules (VFR) flight. Visual meteorological conditions prevailed, and no flight plan had been filed. According to the student pilot, the flight was his first flight in the unregistered trike and he had received no flight training in the aircraft prior to the accident but had downloaded and then read the aircraft's manuals. After applying full power and reaching an airspeed of about 30 knots he pushed forward on the control bar to initiate the liftoff. Shortly after liftoff the aircraft turned right, felt like it" stalled" and impacted the ground resulting in substantial damage to the carriage keel and wing. The pilot reported that there were no preaccident mechanical malfunctions or anomalies that would have precluded normal operation. The pilot reported that he believed the trike was an ultralight aircraft. According to the trike's operating manual, the aircraft specifications exceeded the maximum takeoff weight, fuel capacity, and seat limitations stated in 14 Code of Federal Regulations Part 103 for ultralight aircraft. After repeated attempts, the pilot did not submit an NTSB Pilot/Operator Accident Report form (NTSB Form 6120.1) as required. The student pilot indicated that this flight was his first in the unregistered trike, and he had no flight training in the airplane but had read the manuals. After applying full power and reaching an airspeed of about 30 knots, he pushed forward on the control bar to initiate the liftoff. He stated that, shortly after liftoff, the trike turned right, "stalled," and impacted the ground, which resulted in substantial damage to the carriage keel and wing. The pilot reported that there were no preaccident mechanical malfunctions or anomalies that would have precluded normal operation. The pilot reported that he believed the trike was an ultralight aircraft. However, according to the trike's operating manual, the aircraft specifications exceeded the maximum takeoff weight, fuel capacity, and seat limitations stated in 14 Code of Federal Regulations Part 103 for ultralight aircraft. It is likely that, given the pilot's general lack of experience and training in the airplane type, he lost control during takeoff. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- C Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot - C
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- C Personnel issues-Experience/knowledge-Training-Total instruct/training recvd-Pilot - C
Verbatim from NTSB's published report. Source file
NTSB_2018_ANC19LA004.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 (stall, loss of control). All research papers
- 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…
- 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 …