The standard would significantly expand the FAA's so-called "sterile cockpit rule, " which prohibits pilots from engaging in non-flight-related conversations during take-offs and landings.
The fanfare over the release of its A380 was dampened by a variety of production issues, including cabin wiring issues, cracks that appeared inside some of the wings, and an engine that blew apart during the take-off of a Qantas Airways flight departing Singapore in 2010.
SpaceShipII is expected to take passengers to an altitude of 68.3 miles in just a two-hour flight that includes a four-minute period of weightlessness.
Lewis will take on two challenges in Talinn - achieving the qualifying mark for Paris, and helping Britain return to the top flight of multi-event athletics.