Boeing Co's logo is seen above the front doors of its largest jetliner factory in Everett, Washington, U.S. January 13, 2017. REUTERS/Alwyn Scott

WASHINGTON (Reuters) - Boeing Co BA.N has been awarded a $410 million modification to a foreign military sales contract for 38 Apache aircraft, three Longbow crew trainers, and associated spares for Britain, the Pentagon said in a statement on Friday.