No fatalities

CESSNA 172I accident at Renton, WA, 21 Jul 2021

Renton, WA, United States

On July 21, 2021, a CESSNA 172I operated by Seaplane Scenics was involved in an aviation accident near Renton, WA. No fatalities were reported. Investigators recorded the probable cause as: The boat operator’s failure to remain a safe distance from the floatplane during the takeoff run, which resulted in a collision. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

Probable cause

The boat operator’s failure to remain a safe distance from the floatplane during the takeoff run, which resulted in a collision.

— NTSB Determination

Contributing factors

Task monitoring/vigilance — OtherDecision making/judgment — Other

Frequently asked questions

What happened in the 21 Jul 2021 CESSNA 172I accident near Renton, WA?

The boat operator’s failure to remain a safe distance from the floatplane during the takeoff run, which resulted in a collision.

Were there any fatalities in the 21 Jul 2021 CESSNA 172I accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 21 Jul 2021 involved a CESSNA 172I, operated by Seaplane Scenics, at Renton, WA.

What was the probable cause of the accident?

The boat operator’s failure to remain a safe distance from the floatplane during the takeoff run, which resulted in a collision.