中国航空新闻网讯：据美国《航空周刊》8月29日报道，波音在近3年未飞行的777X四号测试机（WH004）上发现推力连杆部件出现裂纹。推力连杆是连接机身与GE9X发动机的组件，该问题再度阻碍波音 ...
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