Cessna 172R飞机是目前世界上产量最大的轻型飞机,该机型是用于飞机驾驶员训练性能较好的飞机之一,是国内最主要的初级教练机。针对Cessna 172R飞机多次发生大功率抖动故障,对发动机抖动原因进行了总结,结合飞机SD卡中数据对该机发生大功率抖动时对发动机工况进行了分析,找到了故障根本原因,提出了有针对性的维护、使用要求,从而有效避免该类故障的再次发生。 Cessna 172R aircraft is the world’s largest light aircraft production, the aircraft is used for aircraft pilot training performance is one of the aircraft is the most important primary trainer. Aiming at the frequent high power jitter of Cessna 172R aircraft, the causes of engine jitter were summarized. Combining with the data from the SD card of the aircraft, the engine operating conditions were analyzed under high power jitter and the root cause of the fault was found. Targeted maintenance, use requirements, so as to effectively prevent the recurrence of such failures.