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CESSNA 402C accident at Hyannis, MA, 26 Apr 2021

Hyannis, MA, United States

On April 26, 2021, a CESSNA 402C operated by Cape Air was involved in an aviation accident near Hyannis, MA. No fatalities were reported. Investigators recorded the probable cause as: The flight instructor’s failure to confirm the position of the left engine’s auxiliary fuel boost pump switch during a simulated engine out procedure, which resulted in an excess amount of fuel in the engine and subsequent partial loss of power during a… This summary draws on records from NTSB; 17 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

Probable cause

The flight instructor’s failure to confirm the position of the left engine’s auxiliary fuel boost pump switch during a simulated engine out procedure, which resulted in an excess amount of fuel in the engine and subsequent partial loss of power during a go-around/rejected landing. Contributing to the accident was the flight instructor’s failure to maintain control of the airplane, which resulted in a hard landing.

— NTSB Determination

Contributing factors

Instructor/check pilot

Related events

Same aircraft family

Same operator

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