NTSB CAROL · Event
Event DEN02LA015
Aircraft involved
Probable cause & findings
a wet brake that later froze resulting in a loss of directional control on landing. A contributing factor was the snow bank.
Factual narrative
On December 18, 2001, approximately 1045 mountain standard time, a Piper PA-28-235, N8704W, operated by Cherokee Flyers, LLC, of Grand Junction, Colorado, was substantially damaged when it collided with terrain following a loss of control while landing at Crested Butte, Colorado. The private pilot and two passengers were not injured. Visual meteorological conditions prevailed, and no flight plan had been filed for the personal flight being conducted under Title 14 CFR Part 91. The flight originated in Grand Junction at 1000. According to the pilot, runway 29 was covered by a thin layer of snow that had recently been plowed. The airplane touched down, rolled about 10 feet, and began "pulling" to the left. The pilot applied right rudder but to no avail. He applied full right aileron and lifted the left wing to clear an 18-inch snow bank on the side of the runway. The airplane traveled another 100 feet before the left wing lost lift and settled back down to the runway. The airplane "went through snow," spun around, and stopped 20 feet off the side of the runway. The pilot said that after walking along the runway and locating the point of touch down, he noted a skid mark made by the left wheel. He suspected the wheel may have gotten wet while taxiing at Grand Junction and the brake froze. He said the temperature at 12,000 feet was -20 degrees F. Initial examination of the airplane revealed the nose landing gear had collapsed and the fuselage was wrinkled. When the airplane was retrieved by the salvage firm, it was discovered that both wing spars were twisted and the firewall was buckled. The pilot said the runway was covered by a thin layer of snow that had recently been plowed. The airplane touched down, rolled about 10 feet, and began "pulling" to the left. The pilot applied right rudder but to no avail. He applied full right aileron and lifted the left wing to clear an 18-inch snow bank on the side of the runway. The airplane traveled another 100 feet before the left wing lost lift and settled back down to the runway. The airplane "went through snow," spun around, and stopped 20 feet off the side of the runway. The pilot found a skid mark on the runway made by the left wheel. He suspected the wheel may have gotten wet when he had taxied for takeoff and the brake froze. He said the temperature at 12,000 feet was -20 degrees F. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2001_DEN02LA015.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
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Academic papers and agency reports matching this event's aircraft type or causal vocabulary (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.
- 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.
- 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.
- NASA NTRS 2021 · Conference Paper
Use of Design of Experiments in Determining Neural Network Architectures for Loss of Control Detection
We describe empirical methods for selecting a neural network architecture to implement belief state inference on generic commercial transport aircraft.
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