NTSB CAROL · Event
Event ANC21LA096
Registry · N4276H
FAA Aircraft Registry record.
Make / Model
PIPER PA-14
Year of manufacture
1948 · 73 years old at event
Engine
LYCOMING 0-235 SERIES (115 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19560713
ADS-B equipped
Yes — Mode-S A518D2
Registrant of record
TAILWIND AVIATION INC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
A total loss of engine power during takeoff for reasons that could not be determined based on the available information.
Factual narrative
On September 22, 2021, about 1926 Alaska daylight time, a Piper PA-14 airplane, N4276H, was substantially damaged when it was involved in an accident near Chickaloon, Alaska. The commercial pilot seated in the left seat sustained minor injuries, and the commercial pilot in the right seat was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. According to the left-seat pilot, the accident flight was the first flight after the airplane’s annual inspection. The left-seat pilot was flying at the time of the accident; the right-seat pilot was the pilot-in-command. Before departure, the pilots completed a “thorough” preflight inspection, and an engine run-up revealed no anomalies. The takeoff was uneventful until immediately after lifting off, when the engine lost power, regained power momentarily, and then lost power again. Insufficient runway remained on which to land, and the airplane impacted an area of tree- and brush-covered terrain off and nosed over, resulting in substantial damage to the fuselage, wings, wing struts, and rudder. Examination of the engine and fuel system did not reveal any anomalies that would have resulted in a loss of engine power. Weather conditions were conducive to the development of carburetor icing at glide and cruise power. The accident flight was the first flight after the airplane’s annual inspection. The pilots completed a “thorough” preflight inspection, and an engine run-up revealed no anomalies. Just after the airplane became airborne during takeoff, the engine lost power, regained power momentarily, and then lost power again. Insufficient runway remained on which to land, and the airplane impacted an area of tree- and brush-covered terrain off the end of the runway and nosed over. Examination of the engine and fuel system did not reveal any anomalies that would have resulted in a loss of engine power. The reason for the loss of power could not be determined based on the available information. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- — Aircraft-Aircraft power plant-Engine (reciprocating)-(general)-Inoperative
- — Not determined-Not determined-(general)-(general)-Unknown/Not determined
Verbatim from NTSB's published report. Source file
NTSB_2021_ANC21LA096.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 (icing). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- NASA NTRS 2026 · Contractor Report (CR)
Icing Physics Studies Using the 3D SIDRM Test Article: 2023 Icing Tests Analysis
In-flight icing is an important safety issue and is a factor that affects aircraft design and performance. Newer regulations are driving a need for improvements in airframe and engine icing simulation…
- arXiv 2025 · arXiv preprint
Multi-Agent Deep Reinforcement Learning for UAV-Assisted 5G Network Slicing: A Comparative Study of MAPPO, MADDPG, and MADQN
The growing demand for robust, scalable wireless networks in the 5G-and-beyond era has led to the deployment of Unmanned Aerial Vehicles (UAVs) as mobile base stations to enhance coverage in dense urb…
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER)
A Mathematical Model on the Temporal Dynamics of Aviation Competitive Pricing
This study investigates the competitive dynamics of airport pricing using U.S. airport data to validate the findings. It employs linear and nonlinear ordinary differential equation models to analyze t…
- NASA NTRS 2025 · Presentation
NASA Icing Update – March 2025
This NASA Icing Update was prepared for presentation to the SAE International AC-9C Inflight Icing Technology Committee. This update includes the following topics: planned Rotational Icing Scaling tes…
- arXiv 2024 · arXiv preprint
An energy-stable phase-field model for droplet icing simulations
A phase-field model for three-phase flows is established by combining the Navier-Stokes (NS) and the energy equations, with the Allen-Cahn (AC) and Cahn-Hilliard (CH) equations and is demonstrated ana…
- NASA NTRS 2024 · Presentation
NASA Icing Update – Oct 2024
This presentation provides a status update on select NASA icing research activities for the SAE AC-9C Icing Technical Committee Meeting on Oct 21, 2024.
Browse the full corpus — academia portal ↗