DEN02LA027
2002-02-20 · Kemmerer, Wyoming, United States · None · 1 aircraft · Status: Completed
Airport EMM
Current FAA registration · N84RL
- Make / Model
- KNIGHT ROGER E BD-4
- Year of manufacture
- 1996 · 6 years old at event
- Engine
- LYCOMING 0-320 SERIES (180 hp)
- Seats / Engines
- 2 seats · 1 engine
- Last airworthiness date
- 19960509
- ADS-B equipped
- Yes — Mode-S AB7F02
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's failure to maintain directional control during takeoff, which resulted in a collision with a snowbank. A contributing factor was the high crosswind.
Factual narrative
On February 20, 2002, approximately 1230 mountain standard time, a Knight BD-4, N84RL, operated by the pilot, was substantially damaged following loss of control during takeoff at Kemmerer Municipal Airport, Kemmerer, Wyoming. The pilot and his passenger were not injured. Visual meteorological conditions prevailed, and no flight plan had been filed for the pleasure flight being conducted under Title 14 CFR Part 91. The flight was originating at the time of the accident. According to the pilot's accident report, the wind was from 260 degrees approximately 20 knots when he started his takeoff roll on runway 22. When the airplane was approximately 8 feet off the ground, the quartering headwind "seemed stronger," and he used "full right rudder to crab into the wind." He said, "The wind pushed me to the left and the left gear hit the top" of a snow bank, turning the airplane "perpendicular to the wind." Airspeed dropped from 75 MPH to 60 MPH and the controls felt "sluggish." The pilot said he didn't feel he could avoid a windsock and fence ahead, so he closed the throttle and landed in the snow. The left gear collapsed when it hit the snow. The left wing then struck the snow, denting the leading edge and tearing off the wing tip. After liftoff, a quartering headwind pushed the airplane to the left side of the runway. The left main gear struck a snow bank and airspeed dropped. The pilot felt he could not clear obstacles ahead and decided to land in the snow. The left main landing gear collapsed, and the left wing then struck the snow. According to the pilot, the wind was from 260 degrees at 20 knots when he started his takeoff on runway 22. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2002_DEN02LA027.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 (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.