A 23-year-old male passenger aboard a May 27 Alaska Airlines flight from Anchorage to Portland attempted to open a mid-cabin emergency exit hatch on a Boeing 737 while the aircraft was beginning its initial descent to Portland. Passengers wrestled the man to the floor and subdued him until he could be handed over to police after landing. No one aboard the aircraft was injured. The Boeing’s hatch is designed so that cabin air pressure makes it unopenable in flight.