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我局的飞机因航线短,起飞、降落的架次频繁,飞机起落架上的轮毂容易造成疲劳而损伤,仅1984年3月,外场发现三叉戟飞机前轮轮毂外缘连续两次崩裂,(在这期间曾发现一次737飞机前轮轮毂外缘崩裂)崩裂长度均为200mm,如图1。
Because of short routes, take-off and landing times, the aircraft on our aircraft suffered frequent fatigue and damage to the wheels on the landing gear. In March 1984, the outer edge of the front wheel hub of the Trident aircraft was cracked twice in a row During this period was found once 737 aircraft front wheel rim cracking) crack length of 200mm, as shown in Figure 1.