United Airlines is removing 24 Boeing 777 planes powered by Pratt & Whitney 4000 series engines after the Federal Aviation Administration (FAA) called for stepped-up inspections.
원문출처 : https://www.cnn.com/2021/02/21/us/boeing-777-airplanes-federal-aviation-administration/index.html
원문출처 : https://www.cnn.com/2021/02/21/us/boeing-777-airplanes-federal-aviation-administration/index.html