2 fatalities

Floatplane Hits Water During Landing Attempt, Occupants Lost After Drifting in Fog (N4559F)

Valdez, AK, US

On September 21, 1983, a Cessna 185 (registration N4559F) operated by Kenneth C. Sumey, Columbia Air was involved in an aviation accident near Valdez, AK. 2 people were killed. 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 2026-07-04Data APIEditorial standards

A pilot, after aborting an earlier flight due to low ceilings, returned and attempted to land at Silver Lake. During a descending left turn, the aircraft's left float struck the water, causing a bounce and abrupt pitch-down. The two occupants climbed onto wreckage but drifted out of sight in fog and rain and were not found.

Flight History

The pilot had attempted to fly to Silver Lake earlier that morning but aborted the mission due to low ceiling and visibility. Upon returning at 1110 ADT, the ceiling had improved; however, layers of stratus and fog persisted below the main cloud base.

Accident Sequence

Witnesses observed the aircraft circle twice and believed the pilot intended to land. During a descending left turn with 15 to 20 degrees of bank, the aircraft struck the water with the left float, then bounced high above the water. At the top of the bounce, a high engine sound was heard, after which the aircraft pitched down abruptly and crashed into the water.

Post-Crash Events

When the water and spray subsided, witnesses saw two floats, the rear section of the fuselage, and debris on the water. About two minutes later, they observed the two occupants climb onto the floating wreckage. The witnesses began building a log raft to rescue the occupants, but before completing the raft, the occupants had drifted out of sight in fog and rain. A search was made for the occupants, but they could not be found and were presumed to have drowned.

Frequently asked questions

What happened in the 21 Sept 1983 Cessna 185 accident near Valdez, AK?

A pilot, after aborting an earlier flight due to low ceilings, returned and attempted to land at Silver Lake. During a descending left turn, the aircraft's left float struck the water, causing a bounce and abrupt pitch-down. The two occupants climbed onto wreckage but drifted out of sight in fog and rain and were not…

Were there any fatalities in the 21 Sept 1983 Cessna 185 accident?

The accident was fatal, resulting in 2 fatalities.

What aircraft was involved and where did it happen?

The accident on 21 Sept 1983 involved a Cessna 185, registration N4559F, operated by Kenneth C. Sumey, Columbia Air, at Valdez, AK.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X44384. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.