NTSB CAROL · Event
Event WPR10LA168
Aircraft involved
Probable cause & findings
The partial loss of engine power during climb to cruise due to carburetor icing and the pilot's delay in using carburetor heat.
Factual narrative
On March 17, 2010, approximately 1020 Pacific daylight time, a Cessna 150F, N7854F, sustained substantial damage during a forced landing following a loss of engine power near Tillamook, Oregon. The commercial pilot and passenger were not injured. The pilot/owner was operating the airplane under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed for the personal local flight, which had originated approximately 20 minutes before the accident. A flight plan had not been filed. The pilot reported that he had taken off from the Tillamook Airport on runway 13 and turned northward. As the airplane climbed to 2,000 feet above the ground, the engine's rpm began to decrease and the pilot reported that he applied carburetor heat with no effect noted. The pilot subsequently turned the airplane back towards the airport and he aligned the airplane with runway 13 for landing. The pilot stated that he had to pull up on short final to clear an airport perimeter fence, and the airplane stalled from approximately 15 feet and landed on its nose in soft soil short of the runway. The airplane nosed over and came to rest inverted. The fuselage was bent aft of the cabin area and the vertical stabilizer was bent. A mechanic acquired the airplane after the accident and he reported finding no anomalies with the airframe or power plant other than from impact. The reported weather conditions at the Tillamook airport at 1013 were: wind calm; visibility 7 miles; temperature and dew point 44.6 degrees Fahrenheit. At 1033, the reported weather conditions were wind calm; visibility 10 miles; temperature and dew point 46.4 degrees Fahrenheit. Plotting these temperatures on a carburetor icing chart indicated the conditions were conducive to serious icing at cruise power. The pilot reported that as he configured the airplane in a level attitude for cruise flight, the engine's rpm began to decrease and he applied carburetor heat with no effect noted. The pilot subsequently turned the airplane back towards the airport to land. As he approached the runway, he had raise the airplane's nose in an effort to avoid an airport perimeter fence. The airplane stalled and impacted soft terrain short of the runway. The airplane came to rest inverted; the aft fuselage and the vertical stabilizer were bent. A postaccident examination of the wreckage revealed no preimpact anomalies with the engine or airframe that would have prevented normal operation. The temperature and dewpoint at the time of the flight were both 45 degrees Fahrenheit. Plotting these temperatures on a carburetor icing chart indicated the conditions were conducive to serious icing at cruise power. 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).
- C Aircraft-Aircraft power plant-Engine (reciprocating)-(general)-Failure - C
- C Environmental issues-Conditions/weather/phenomena-Temp/humidity/pressure-Conducive to carburetor icing-Effect on equipment - C
- — Environmental issues-Physical environment-Runway/land/takeoff/taxi surfa-Soft-Effect on equipment
- C Personnel issues-Task performance-Use of equip/info-Use of equip/system-Pilot - C
Verbatim from NTSB's published report. Source file
NTSB_2010_WPR10LA168.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). 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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