ANC05CA019
2004-12-24 · Illiamna, Alaska, United States · None · 1 aircraft · Status: Completed
Airport ILI
Current FAA registration · N9909Z
- Make / Model
- CESSNA U206G
- Year of manufacture
- 1983 · 21 years old at event
- Engine
- CONT MOTOR IO 520 SERIES (285 hp)
- Seats / Engines
- 6 seats · 1 engine
- Last airworthiness date
- 19940104
- ADS-B equipped
- Yes — Mode-S ADD64E
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's inadequate compensation for the gusty wind conditions, which resulted in a loss of control, and the airplane nosing over. A factor contributing to the accident was the gusty wind condition.
Factual narrative
On December 24, 2004, about 1140 Alaska standard time, a wheel-equipped Cessna U206G airplane, N9909Z, sustained substantial damage when it nosed over on the taxiway while taxing for takeoff, at the Illiamna Airport, Illiamna, Alaska. The airplane was being operated by Lake Peninsula Air, of Port Alsworth, Alaska, as a visual flight rules (VFR) positioning flight under Title 14, CFR Part 91, when the accident occurred. The solo commercial pilot was not injured. Visual meteorological conditions prevailed, and company VFR flight following procedures were in effect. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on December 24, the owner of the airplane said the pilot told him he had dropped off a passenger, and was taxing for takeoff when a gust of wind from behind lifted the left wing and rolled the airplane over. During a telephone conversation with the IIC on December 24, an FAA flight service station specialist said that at the time of the accident, wind velocity instruments at the Illiamna Airport recorded a peak wind gust of 33 knots. The solo commercial pilot was taxiing for takeoff in gusty wind conditions. He said as he turned the airplane abeam the wind, a strong gust lifted the left wing, and rolled the airplane upside down. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2004_ANC05CA019.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.
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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.