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FOD(Foreign object debris)指可能损伤发动机的外来物。2000年7月,法国航空公司一架协和客机起飞后着火,56s后坠毁。事故调查结果表明,此次空难的肇事者是上一个航班飞机上掉落的一个金属碎片,它扎破了协和飞机的轮胎,轮胎爆炸产生的碎片击中一个或多个油箱,飞机左机翼着火并在不到1min 30s的时间内坠毁。有资料表明,航空产业每年的FOD事故维修就高达40亿美
FOD (Foreign object debris) refers to foreign objects that can damage the engine. In July 2000, a Concorde of French Airlines caught fire after taking off and crashed 56 seconds later. The accident investigation showed that the accident was caused by a metal fragment falling from the previous flight. It punctured the Concorde’s tires and the debris from the tire explosion hit one or more fuel tanks. The left wing of the aircraft Caught fire and crashed in less than 1min 30s. Data show that the aviation industry FOD annual maintenance up to 4 billion US dollars