The US Air Force said Friday it has grounded 10 of its F-35 Joint Strike Fighters, just over a month after they were declared "combat ready."
원문출처 : http://www.cnn.com/2016/09/16/politics/us-air-force-grounds-f-35/index.html
원문출처 : http://www.cnn.com/2016/09/16/politics/us-air-force-grounds-f-35/index.html