A320S飞机(CFM56)点火不成功排故分析及建议

Troubleshooting Analysis and Suggestions on Failure of A320S Aircraft(CFM56)Ignition

通过某公司一空客A321飞机CFM56-5B发动机在起动过程中点火失效的案例,结合公司近年来的维修记录和厂家维修手册,本文对CFM56-5B发动机点火和供油系统原理进行分析,梳理发动机不能成功点火的可能原因,提出该类故障排除的通用方法,避免因忽视供油系统对点火的影响导致的重复性无效排故。

Through the case of a company’s Airbus A321 aircraft CFM56-5B engine ignition failure during the starting process,combined with the company’s maintenance records in recent years and the manufacturer’s maintenance manual,this paper analyzes the principle of the CFM56-5B engine ignition and fuel supply system,sorts out the possible reasons for the failure of the engine ignition success,and proposes general method for such troubleshooting to avoid the repetitive and invalid troubleshooting caused by ignoring the influence of the fuel supply system on the ignition.