Casualties unknown

Engine Power Loss Leads to Forced Landing and Nose-Over in Snow (N316T)

Sheridan, WY, US

On February 6, 1998, a Piper PA-18-105 (registration N316T) was involved in an aviation accident near Sheridan, WY. Investigators recorded the probable cause as: the pilot's improper use of carburetor heat, which resulted in loss of engine power due to carburetor ice. Factors relating to the accident were: the carburetor icing (weather) condition, and the lack of a suitable area for an emergency landing. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards

During a local personal flight, the engine lost power. Despite attempts to restore power, the pilot made a forced landing beside a road, where snow caused the aircraft to nose over. No mechanical issues were found; conditions were conducive to carburetor ice.

Incident Overview

While in cruise during a local area personal flight, the engine experienced a loss of power. The pilot took corrective actions by enriching the mixture, applying carburetor heat, and switching fuel tanks. These procedures did not restore engine power, prompting the pilot to execute a forced landing beside a road.

Landing and Post-Impact Sequence

As the aircraft slowed during the landing roll, the main landing gear encountered snow, which caused the aircraft to nose over. The accident sequence ended with the aircraft inverted on the ground.

Examination Findings

An examination of the aircraft revealed no evidence of any preexisting condition that would have prevented the engine from operating normally. The engine and its systems were otherwise functional.

Environmental Conditions

At the time of the accident, the reported temperature was 39 degrees Fahrenheit and the dew point was 34 degrees Fahrenheit. According to icing probability charts, these conditions were conducive to the formation of carburetor ice.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X09545. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.