Casualties unknown

Amphibious Aircraft Cartwheels During Water Landing in Turbulent Conditions (N4504N)

Winslow, WA, US

On February 6, 1984, a Cessna A185F (registration N4504N) was involved in an aviation accident near Winslow, WA. Investigators recorded the probable cause as: The pilot's decision to land in turbulent crosswind conditions, which resulted in the left float and wing digging into the water and causing the aircraft to cartwheel. 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 2026-06-23Data APIEditorial standards

An amphibious aircraft experienced a violent cartwheeling motion during a water landing due to turbulent crosswind conditions, causing significant structural damage to the left float and wing.

What happened

The incident occurred while the pilot was attempting a water landing in challenging environmental conditions. The aircraft encountered turbulent crosswinds at the moment of touchdown. As the aircraft made contact with the water surface, the left float and the adjacent wing section dug into the water rather than floating smoothly.

This immediate resistance caused the aircraft to lose directional control and begin a violent cartwheeling motion across the water's surface. The chaotic movement continued until the aircraft finally came to rest. During this process, the right wingtip made contact with the bottom of the bay, indicating significant lateral displacement and impact with the seabed.

The investigation

Following the accident, the pilot provided a statement regarding the circumstances of the landing. He acknowledged that the decision to land directly in the harbor was not optimal given the conditions. The pilot stated that it would have been more prudent to land outside the harbor and taxi to his intended destination instead of attempting a direct water approach.

Findings

The primary factors contributing to the accident included the turbulent crosswind conditions present during the landing phase. The mechanical outcome was severe structural damage resulting from the cartwheeling event. The pilot's post-accident assessment highlighted that alternative landing procedures could have mitigated the risk of such a violent impact.

Safety message

This incident underscores the importance of assessing weather conditions and harbor accessibility before attempting water landings. Pilots should consider whether taxiing to a destination after landing in safer, open water might be a more prudent course of action than navigating complex harbor environments under turbulent conditions.

Probable cause

The pilot's decision to land in turbulent crosswind conditions, which resulted in the left float and wing digging into the water and causing the aircraft to cartwheel.

Frequently asked questions

What happened in the 6 Feb 1984 Cessna A185F accident near Winslow, WA?

An amphibious aircraft experienced a violent cartwheeling motion during a water landing due to turbulent crosswind conditions, causing significant structural damage to the left float and wing.

What aircraft was involved and where did it happen?

The accident on 6 Feb 1984 involved a Cessna A185F, registration N4504N, at Winslow, WA.

What was the probable cause of the accident?

The pilot's decision to land in turbulent crosswind conditions, which resulted in the left float and wing digging into the water and causing the aircraft to cartwheel.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X38915. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.