As part of the joint team that will launch Boeing’s CST-100 Starliner on a United Launch Alliance Atlas V rocket in Boeing’s Orbital Flight Test (OFT), NASA Operations Integration Manager Michael Hess participated in a successful Integrated Crew Exercise on Feb. 12. NASA, ULA, Boeing and Department of Defense personnel executed a mock countdown that practiced fueling the rocket and operating on the unique launch day timeline that features a four-hour built-in hold at the T-minus 4 minute mark. OFT is Boeing’s uncrewed flight test of Starliner and part of NASA’s Commercial Crew Program, which will return human spaceflight launches into low-Earth orbit from U.S. soil.