NTSB CAROL · Event
Event NYC99LA058
Aircraft involved
Probable cause & findings
The instructor pilot's improper use of carburetor heat which resulted in carburetor ice, and a loss of engine power. A factor in the accident was the instructor pilot's failure to initiate the simulated engine failure from a point where a successful forced landing could be completed.
Factual narrative
On February 12, 1999, at 0930, eastern standard time, a Cessna 152, N89097, was substantially damage during a forced landing near the Duanesburg Airport, Duanesburg, New York. The certificated flight instructor and student pilot received minor injuries. Visual meteorological conditions prevailed for the instructional flight that originated from Albany, New York, for the purpose of conducting training in the Duanesburg, New York, area. No flight plan was filed, and the flight was conducted under 14 CFR Part 91. The instructor stated that he and the student preflighted the airplane, completed the engine run-up checks, and then departed Albany about 0900, to conduct emergency procedures training in the local area. While in the vicinity of Duanesburg, at 2,500 feet msl, the instructor initiated the first of two simulated engine failures. The student maneuvered the airplane and executed a touched-and-go on runway 28 at Duanesburg. Then, while on downwind for runway 28, at 2,000 feet msl, the instructor initiated the second simulated engine failure. The student insured the carburetor heat was on, simulated checking the throttle, and began maneuvering for the runway. When the airplane was about 400 feet agl, the instructor realized they would not make the runway. He advised the student, and advanced the throttle, but the engine did not respond. The instructor was only able to insure that the throttle and fuel selector were properly set before the airplane stuck a tree, stalled, and impacted the ground. After the airplane came to rest, both the instructor and student exited the airplane under their own power. Once outside the airplane, the instructor noticed fuel spilling from the engine area so he re entered the airplane and placed the fuel selector in the off position. A Federal Aviation Administration Inspector stated that he removed the top sparkplugs, placed fuel in the cylinders, replaced the sparkplugs then attempted to started the engine. The engine started and the propeller rotated approximately 10 times. In addition, the inspector dissembled the carburetor and saw no signs of malfunction. He also found no anomalies with either the airframe or the engine that would have caused a loss of power. According to the FAA publication, "Tips On Winter Flying," the accident weather conditions were conducive for serious icing with cruise or climb power. In addition, the publication stated that, "It is recommended that carburetor heat be applied before reducing power and that partial power be used during letdown to prevent icing and overcooling the engine." The instructor and student preflighted the airplane, completed the engine run-up checks, and departed. Then, in the vicinity of a local airport, at 2,500 feet msl, the instructor initiated the first of two simulated engine failures. The student maneuvered the airplane and executed a touched-and-go. Then, while on downwind, and at 2,000 feet msl, the instructor initiated the second simulated engine failure. The student insured the carburetor heat was on, simulated checking the throttle, and began maneuvering for the runway. At 400 feet agl, the instructor realized they would not make the runway. He advised the student, and advanced the throttle, but the engine did not respond. He was able to insure that the throttle and fuel selector were properly set before the airplane stuck a tree, stalled, and impacted the ground. There was no evidence of a pre impact failure that would have caused a loss of power. Weather conditions were conducive for serious icing with cruise or climb power, and the FAA recommended, ' that carburetor heat be applied before reducing power and that partial power be used during letdown to prevent icing....' Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1999_NYC99LA058.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, stall, engine failure). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- arXiv 2023 · arXiv preprint
Variation of Critical Crystallization Pressure for the Formation of Square Ice in Graphene Nanocapillaries
Two-dimensional square ice in graphene nanocapillaries at room temperature is a fascinating phenomenon and has been confirmed experimentally.
- arXiv 2022 · arXiv preprint
Enhanced Prediction of Three-dimensional Finite Iced Wing Separated Flow Near Stall
Icing on three-dimensional wings causes severe flow separation near stall. Standard improved delayed detached eddy simulation (IDDES) is unable to correctly predict the separating reattaching flow due…
- NASA NTRS 2019 · Contractor Report (CR)
An Evaluation of an Analytical Simulation of an Airplane with Tailplane Icing by Comparison to Flight Data
This report presents the assessment of an analytical tool developed as part of the NASA/FAA Tailplane Icing Program. The analytical tool is a specialized simulation program called TAILSM4 which was de…
- NASA NTRS 2019 · Technical Publication (TP)
NASA/FAA Tailplane Icing Program: Flight Test Report
This report presents results from research flights that explored the characteristics of an ice-contaminated tailplane using various simulated ice shapes attached to the leading edge of the horizontal …
- NASA NTRS 2019 · Other
[Tail Plane Icing]
The Aviation Safety Program initiated by NASA in 1997 has put greater emphasis in safety related research activities. Ice-contaminated-tailplane stall (ICTS) has been identified by the NASA Lewis Icin…
- Embry-Riddle Scholarly Commons 2019 · Journal article (IJAAA)
Airport Policing in Pakistan: Structure, Training, and Issue
Airports are strategically and economically important installations of any country. Airports are the gateway of any country and any incidents at these gateways may harm the very aspects of a country i…
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