NASA Space Technology WASHINGTON — NASA is preparing for the uncrewed return to Earth of Boeing’s CST-100 Starliner spacecraft as the agency begins work on changes to the spacecraft to correct problems found during its test flight.Agency officials confirmed at a Sept. 4 briefing plans for Starliner to undock from the station Sept. 6 at 6:04 p.m. Eastern. The spacecraft will quickly depart the vicinity of the ISS and perform a deorbit burn at 11:17 p.m. Eastern, setting up a landing of the Starliner crew capsule at White Sands Space Harbor, New Mexico, at 12:03 a.m. Eastern Sept. 7.Steve Stich, NASA commercial crew program manager, said there were no technical issues being worked ahead of Starliner’s uncrewed departure to complete the Crew Flight Test (CFT) mission. Weather at White Sands was also forecast to be...