The “Spirit of Pennsylvania” B-2 bomber during a previous programmed depot maintenance stay at Plant 42 in Palmdale, California, Jan. 26, 2010. The aircraft is currently finishing up its current PDM at the Northrop Grumman facility at the plant before flying to its new home with the 419th Flight Test Squadron at Edwards Air Force Base, California. (Photo courtesy of Alan Radecki/Northrop Grumman)