Dual engine power loss during night flight in heavy snow

Casualties unknown • Steuben, WI, US

An aircraft lost power to both engines while flying in instrument conditions at night, resulting in a collision with trees and the destruction of the airplane.

What happened

While flying through heavy snow at night, an aircraft experienced a simultaneous loss of power in both engines. The flight was being conducted under instrument conditions when the engines failed. Following the loss of power, the airplane descended and collided with trees, which resulted in the destruction of the aircraft.

The investigation

An examination of the airplane performed on December 13, 1995, revealed that ice was present within the air induction system of both engines. Investigators found no other malfunctions related to the aircraft or its engines during the inspection.

Probable cause

Ice accumulation in the air induction systems of both engines caused the loss of power.

Frequently asked questions

What happened in the 1995-12-12 Piper PA-23-250 accident near Steuben, WI?

An aircraft lost power to both engines while flying in instrument conditions at night, resulting in a collision with trees and the destruction of the airplane.

What aircraft was involved and where did it happen?

The accident on 1995-12-12 involved a Piper PA-23-250, registration N54791, operated by Robert G. Timm, at Steuben, WI.

What was the probable cause of the accident?

Ice accumulation in the air induction systems of both engines caused the loss of power.

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