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Atlas / NTSB / CEN13LA201

NTSB CAROL · Event

Event CEN13LA201

2013-03-15 Winsted, Minnesota, United States Airport · 10D None 1 aircraft Status: Completed

Registry · N6222M

FAA Aircraft Registry record.

Make / Model

BEECH V35

Year of manufacture

1967 · 46 years old at event

Engine

CONT MOTOR IO 520 SERIES (285 hp)

Seats / Engines

6 seats · 1 engine

Last airworthiness date

19670726

ADS-B equipped

Yes — Mode-S A82055

Registrant of record

BEECH CLUB LLC

Source: FAA Aircraft Registry (releasable master file).

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

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or 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 ↗.

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.

Browse the full corpus — academia portal ↗