NTSB CAROL · Event
Event ANC05CA011
Aircraft involved
Probable cause & findings
The instructor pilot's inadequate supervision of the student, which resulted in a loss of control during the landing roll, and subsequent nose over.
Factual narrative
On October 30, 2004, about 1340 Alaska daylight time, N4851E, a tailwheel-equipped Champion 7FC airplane, sustained substantial damage during landing at the Talkeetna Airport, Talkeetna, Alaska. The airplane was being operated as a visual flight rules (VFR) local area instructional flight under Title 14, CFR Part 91, when the accident occurred. The first pilot, seated in the rear seat, a certificated flight instructor, and the second pilot, seated in the front seat, a certificated private pilot, were not injured. The accident airplane was owned by the second pilot. Visual meteorological conditions prevailed, and no flight plan was filed. The flight originated at the Talkeetna Airport, Talkeetna, about 1300. During a telephone conversation with the National Transportation Safety Board investigator-in-charge on November 1, the first pilot reported that she was providing flight instruction/recurrent training to the second pilot. The first pilot said that just after landing on runway 36, a dry, paved runway, the second pilot allowed the airplane to veer slightly to the left of the runway centerline. She said that she took control of the airplane in an attempt to realign the airplane, but the airplane ground looped to the left, and continued off the left side of the runway. The airplane's main wheels struck a snowbank, and the airplane nosed over. The airplane sustained structural damage to the wings, wing lift struts, fuselage, and empennage. Both pilots noted that there were no preaccident mechanical anomalies with the airplane. The flight instructor was providing flight instruction/recurrent training to the private pilot in a tailwheel-equipped airplane. The flight instructor said that just after landing on a dry, paved runway, the private pilot allowed the airplane to veer to the left of the runway centerline. The instructor said that she took control of the airplane in an attempt to realign the airplane, but the airplane ground looped to the left, and continued off the left side of the runway. The airplane's main wheels struck a snowbank, and the airplane nosed over. The airplane sustained structural damage to the wings, wing lift struts, fuselage, and empennage. Both pilots noted that there were no preaccident mechanical anomalies with the airplane. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2004_ANC05CA011.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 (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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