美国Piper公司生产的Seminole飞机(工厂型号PA44-180)是一种小型可收放起落架的双发螺旋桨活塞式飞机,该种机型的动力装置是两台美国Lycoming公司生产的O/LO-360-A1H6汽油活塞式发动机。该型发动机在使用过程中,点火系统的故障是常见、多发且对飞行安全有较大影响的故障类型之一。因此,有必要对该机型发动机点火系统的故障进行全面分析,并有针对 The United States, the company’s production of the Piper Seminole aircraft (factory model PA44-180) is a small retractable landing gear double-propeller piston aircraft, this model is powered by two American company Lycoming O / LO- 360-A1H6 petrol piston engine. This type of engine in use, the ignition system failure is common, multiple and has a greater impact on flight safety one of the types of faults. Therefore, it is necessary to conduct a comprehensive analysis on the failure of the engine ignition system of this model,