FAA警告某些Cessna和Piper飞机使用Lywring发动机和AVStar燃料服务器进行未经指挥的发动机回转。 FAA warns of un-commanded engine rollbacks in certain Cessna and Piper planes with Lycoming engines and AVStar fuel servos.

FAA已发布安全警报，针对搭载Lycoming IO-360发动机和AVStar燃油伺服系统的飞机，尤其是在怠速减油门时发生的发动机回滚现象。 The FAA has issued a safety alert over un-commanded engine rollbacks in aircraft with Lycoming IO-360 engines and AVStar fuel servos, especially during idle throttle reductions. 受到影响的模型包括Cessna 172S、172R和几个Piper变体。 Affected models include the Cessna 172S, 172R, and several Piper variants. 该机构正在从飞行员和技术人员那里收集详细的操作和维护数据,以评价潜在的适航风险,而不论燃料制造商或安装情况如何。 The agency is collecting detailed operational and maintenance data from pilots and technicians to evaluate potential airworthiness risks, regardless of fuel servo manufacturer or installation. 报告涉及在地面和飞行中发生的事件。 Reports involve incidents on the ground and in flight.