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美联航引擎着火客机据报飞行次数远少於进行安全检测要求
阿思达克 02-25 15:53
《路透》引述消息报道,美国联合航空波音777客机PW 4000引擎空中着火事故,出事客机距上次检测仅飞行近3,000次,远少於2018年其他客机同款引擎发生事故後,监管当局要求每6,500次进行检测的飞行次数。

负责生产PW 4000引擎、雷神(RTX.US)旗下普惠公司(Pratt & Whitney)周一(22日)要求航空公司加密检测,在每飞行1,000次便检测一次。美国联邦航空管理局指令所有使用PW 4000引擎的波音777客机进行检查。当局亦承认,在日航一架使用同款引擎同系列客机去年12月出现事故後,已考虑加强检查引擎扇叶问题,并用热能检测有否出现金属疲劳迹象。消息指当局上周已举行会议讨论。

美国联邦航空管理局局长Steve Dickson接受《彭博通讯社》访问时指,每部引擎有22块扇叶,须逐一拿出来检测,每块扇叶检测需时8小时。

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