A medical episode occurred on Air Canada Flight AC7664, prompting a diversion to Boston. The incident happened when the captain fell ill during the flight from Newark Airport. Details of the event are limited, but it is known that the flight was rerouted as a result of the captain's condition.

The nature of the medical episode is not specified. Further information about the incident can be found through ABC13 Houston, which reported on the mid-air emergency that unfolded on the flight.