BOSTON (CBS) – A MedFlight helicopter pilot is under investigation for allegedly falling asleep during a flight with a patient on-board.

The FAA is investigating whether the Boston MedFlight pilot “fell asleep at the controls of a helicopter while conducting a flight to a Boston hospital from Martha’s Vineyard in Massachusetts on June 24.”

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Boston MedFlight says it investigated the incident in which a pilot overflew the designated helipad and determined that fatigue was a factor.

File image of Boston MedFlight helicopter (WBZ-TV)

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“The transport was completed successfully and there were no injuries to the patient or flight crew,” Boston MedFlight CEO Maura Hughes said in a statement.

The pilot is no longer employed by Boston MedFlight.

The company is now working with a fatigue management consultant and safety consultant to review its policies and procedures.

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According to its website, Boston MedFlight flies “approximately 1,842 helicopter critical care transport missions per year—an average of 5 flights a day.”