1991-07-16: DE Havilland DHC2 MK1 — Iliamna, AK

Casualties unknown • Iliamna, AK, US

Probable cause

THE PILOT-IN-COMMAND'S ATTEMPTED FLIGHT INTO KNOWN ADVERSE WEATHER CONDITIONS. CONTRIBUTING TO THE ACCIDENT WAS THE HIGH AND GUSTY WINDS IN THE ACCIDENT AREA.

— NTSB Determination

Accident narrative

THE PILOT WAS MANEUVERING THE AIRPLANE TO AVOID WEATHER. HE ATTEMPTED TO FLY OVER A HILL AND A DOWNDRAFT BEGAN TO PUSH HIM INTO THE HILL. HE APPLIED FULL POWER BUT WAS UNABLE TO RECOVER. CONSEQUENTLY, HE EXECUTED A LANDING ON THE HILLTOP. WIND IN THE AREA WAS REPORTED TO BE FROM THE SOUTH AT 60 KNOTS. THE PILOT REPORTED THE WIND TO BE FROM 110 DEGREES AT 12 KNOTS GUSTING TO 20 KNOTS.

Frequently asked questions

What happened in the 1991-07-16 DE Havilland DHC2 MK1 accident near Iliamna, AK?

THE PILOT WAS MANEUVERING THE AIRPLANE TO AVOID WEATHER. HE ATTEMPTED TO FLY OVER A HILL AND A DOWNDRAFT BEGAN TO PUSH HIM INTO THE HILL. HE APPLIED FULL POWER BUT WAS UNABLE TO RECOVER. CONSEQUENTLY, HE EXECUTED A LANDING ON THE HILLTOP. WIND IN THE AREA WAS REPORTED TO BE FROM THE SOUTH AT 60 KNOTS. THE PILOT…

What aircraft was involved and where did it happen?

The accident on 1991-07-16 involved a DE Havilland DHC2 MK1, registration N6LU, at Iliamna, AK.

What was the probable cause of the accident?

THE PILOT-IN-COMMAND'S ATTEMPTED FLIGHT INTO KNOWN ADVERSE WEATHER CONDITIONS. CONTRIBUTING TO THE ACCIDENT WAS THE HIGH AND GUSTY WINDS IN THE ACCIDENT AREA.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X17404. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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