The FAA prohibits U.S. military operations over eastern Ukraine . Airlines are diverting flights around the area . Problems in the region prompted some airspace changes earlier this year . Crash ##ing was not within airspace prohibited by U.S. regulators .
The FAA prohibits U.S. flight operations over eastern Ukraine . Airlines are diverting flights around the area . Tensions in the region prompted some airspace restrictions earlier this year . Crash site was not within airspace prohibited by U.S. regulators .