The block 20 Global Hawk, AF-9, experienced flight control problems while on a local flight test sortie.
Pilots performed a unique series of flight control maneuvers and managed to land the aircraft on the lakebed.
The RQ-4A sustained damage to its right wing and main landing gear but pilots were able to maintain the UAS's structural integrity and spare its ISR mission systems.
Edwards officials are assessing the damage and have appointed a board of officers to formally investigate the incident.
Aviation Week's ARES Blog also had this story