Casualties unknown

Cessna 207 Makes Forced Landing on Frozen Yukon River, Pilot and Passenger Uninjured (N7329U)

Russian Mission, AK, US

On January 3, 1989, a Cessna 207A (registration N7329U) operated by Ryan Air was involved in an aviation accident near Russian Mission, AK. Investigators recorded the probable cause as: THE PARTIAL ENGINE POWER LOSS DUE TO UNDETERMINED REASONS. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT'S IMPROPER INFLIGHT PLANNING BY FLYING AT A TRAFFIC PATTERN ALTITUDE INSUFFICIENT TO INSURE A SAFE EMERGENCY LANDING EITHER ON OR OFF THE AIRPORT AND HIS… This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.

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

A Cessna 207 lost most engine power on downwind leg near Russian Mission, Alaska, forcing a landing on the frozen Yukon River. The pilot misjudged altitude due to the featureless white surface, striking the river in a slight right turn. Ice crystals were found in the left fuel tank two days later, but their role is unknown.

Accident Overview

During a commercial air taxi flight near Russian Mission, Alaska, a Cessna 207 experienced a loss of engine power. The pilot and passenger were uninjured following a forced landing on the frozen Yukon River.

Pilot Statement

The pilot reported that he had flown over the intended landing site to inspect the runway. While on the downwind leg, the engine lost most of its power. Unable to restore sufficient power to remain airborne, he chose to land on the nearby frozen river. During the landing approach, he misjudged his altitude due to the featureless, all-white surface of the river, and the aircraft struck the surface while still in a slight right turn.

Inspection Findings

An inspection of the crash site conducted two days after the accident revealed numerous ice crystals in the left fuel tank sump. No other obvious abnormalities were noted. The source states that it is unknown if the ice crystals found in the fuel tank were contributory to the accident due to the length of time between the sample collection and the accident.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X27517. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.