Workers remove cover plates from a mock Orion crew module inside the Multi-Payload Processing Facility at NASA’s Kennedy Space Center in Florida on Dec. 6, 2018. The crew module will be used during a full stress test of the Launch Abort System (LAS), called Ascent Abort-2 (AA-2), scheduled for April 2019. During the test, the Northrop Grumman booster will launch from Space Launch Complex 46, carrying a fully functional LAS and the 22,000-pound Orion test vehicle to an altitude of 31,000 feet and traveling at more than 1,000 miles an hour. The test will verify the LAS can steer the crew module and astronauts aboard to safety in the event of an issue with the Space Launch System (SLS) rocket when the spacecraft is under the highest aerodynamic loads it will experience during a rapid climb into space.