Air Canada Flight Diverts After Captain's Medical Emergency, Passengers Help Restrain Him

An Air Canada Express Dash 8-400 on AC7664 from Newark to Halifax diverted to Boston after the captain became incapacitated. The first officer landed the aircraft safely and emergency crews met the plane; several passengers helped restrain the captain during what was described as a seizure-like episode. The captain was hospitalized, and the flight later continued to Halifax. The incident highlights the importance of two-pilot crews and trained crew responses to in-flight medical emergencies.