CEN13LA201
2013-03-15 · Winsted, Minnesota, United States · None · 1 aircraft · Status: Completed
Airport 10D
N6222M has since been reassigned. It is now registered to a different aircraft (BEECH V35, built 1967), which was not involved in this event.
Aircraft involved
Probable cause & findings
The obstruction of the right engine’s induction air system by ice, which resulted in a loss of engine power.
Factual narrative
On March 15, 2013, about 1910 central daylight time, a Piper PA23-250, N6222M, impacted terrain during a forced landing following a loss of engine power on the right engine. There were no injuries to the pilot or five passengers. The airplane sustained substantial damage to the fuselage during the forced landing. The aircraft was registered to West Metro Aviation LLC and operated by Tri-State Drilling under the provisions of 14 Code of Federal Regulations Part 91 as a business flight. Instrument meteorological conditions prevailed for the flight, which operated on an instrument flight rules (IFR) flight plan. The flight originated from the Jamestown Regional Airport (JMS), Jamestown, North Dakota, at 1809, and was en route to the Buffalo Municipal Airport (CFE), Buffalo, Minnesota. The pilot reported that the takeoff, climb and cruise portions of the flight were uneventful. As the airplane descended from 9,000 feet above mean sea level (msl) it entered clouds at 7,500 feet msl, and at 7,000 feet msl it began to rain. The pilot reported that the outside air temperatures were about 50 degrees. He reported that when the airplane was between 5,000 feet msl and 3,300 feet msl moderate to severe icing was experienced and he activated the airframe de-icing system 4 to 6 time before descending below the clouds at 3,300 feet msl. He stated that he could not see through the windshield due to a thick covering of ice but that he had good visibility to each side. He reported that moments after he cancelled his IFR flight plan the right engine lost power. He attempted to restart the engine, including switching fuel tanks, activating the alternate air system, and using both hot and cold start procedures to no avail. At this point the pilot attempted to fly to an alternate airport to land. Due to the ice accumulation on the airframe, the airplane landed short of the intended alternate airport. Examination of the airplane after the accident revealed icing of the induction air intake and air filter of both engines. The right induction air filter was 100 percent obstructed and the left induction air filter was about 35 percent obstructed. No further anomalies were found with respect to either engine. The engine had an electronic engine monitor installed. The unit was retained for possible download of any recorded data. It was found that the unit did not have recording capability. The pilot reported that the twin-engine airplane's right engine lost power following a descent in icing conditions. The pilot's attempts to restart the engine were unsuccessful, and the pilot chose to land at an alternate airport. The airplane subsequently landed short of the runway. Postaccident examination of the airplane revealed icing on both engines' induction air intakes and air filters. The right engine induction air filter was 100 percent obstructed, and the left engine induction air filter was about 35 percent obstructed. No further engine anomalies were found. Based on the available evidence, it is likely that the icing of the right engine's induction air system resulted in a lack of airflow in the system, which prevented combustion and led to the subsequent loss of engine power. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- C Environmental issues-Conditions/weather/phenomena-Temp/humidity/pressure-Conducive to carburetor icing-Effect on equipment - C
- C Aircraft-Aircraft power plant-Engine fuel and control-Fuel control/carburetor-Damaged/degraded - C
Verbatim from NTSB's published report. Source file
NTSB_2013_CEN13LA201.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
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Related research
Matched on aircraft type or causal vocabulary (icing, stall). All research papers
- 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…