Main Engine Cut Off

“There is risk in the schedule, but we’ve also put margin in the schedule,” said John Mulholland, vice president and program manager for the commercial crew program at Boeing. He said the company is focused on qualifying all the components that will be used on the spacecraft and build an initial series of vehicles for upcoming tests.

“We just have to fight through getting past component qualification and getting these initial test articles built and powered on,” he said. “Once we get through that, our risk goes down significantly.”