Naval Air Systems Command issued a flight clearance for the V-22 Osprey fleet Friday following a three-month-long grounding, after eight service members were killed off the coast of Japan in a crash last November. Although a flight clearance has been formally issued, it will take months before the aircraft is operating on the level it was before its grounding, leaders from the Air Force, Navy and Marine Corps told reporters ahead of Friday’s announcement. The officials, including Marine Corps Col...