1989-06-21: DE Havilland DHC-2 — Ketchikan Air Servic, Inc — Kassan, AK

Casualties unknown • Kassan, AK, US

Probable cause

THE EXCESSIVE TAXI SPEED USED BY THE PILOT IN THE EXISTING WEATHER CONDITIONS. CONTRIBUTING TO THE ACCIDENT WAS THE GUSTY TAILWIND.

— NTSB Determination

Accident narrative

AFTER DROPPING OFF EQUIPMENT AT A LAKESIDE CABIN, THE PILOT BEGAN TAXIING THE FLOATPLANE ON WATER IN GUSTY DOWNWIND CONDITIONS IN PREPARATION FOR TAKEOFF FROM THE LAKE. WHILE FAST TAXIING (ON THE STEP), HE NOTICED THE GUSTY WIND CONDITIONS AND RETARDED THE THROTTLE. THE AIRCRAFT NOSED OVER AND CAME TO REST INVERTED IN WATER.

Frequently asked questions

What happened in the 1989-06-21 DE Havilland DHC-2 accident near Kassan, AK?

AFTER DROPPING OFF EQUIPMENT AT A LAKESIDE CABIN, THE PILOT BEGAN TAXIING THE FLOATPLANE ON WATER IN GUSTY DOWNWIND CONDITIONS IN PREPARATION FOR TAKEOFF FROM THE LAKE. WHILE FAST TAXIING (ON THE STEP), HE NOTICED THE GUSTY WIND CONDITIONS AND RETARDED THE THROTTLE. THE AIRCRAFT NOSED OVER AND CAME TO REST INVERTED…

What aircraft was involved and where did it happen?

The accident on 1989-06-21 involved a DE Havilland DHC-2, registration N46DG, operated by Ketchikan Air Servic, Inc, at Kassan, AK.

What was the probable cause of the accident?

THE EXCESSIVE TAXI SPEED USED BY THE PILOT IN THE EXISTING WEATHER CONDITIONS. CONTRIBUTING TO THE ACCIDENT WAS THE GUSTY TAILWIND.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X28687. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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