国航PW4077D机队自引进至今发生多起空中喘振故障,造成了飞机延误和非计划换发等后果,根据发动机厂家建议,国航采取了多种措施,但效果不明显。本文通过对QAR数据、放气系统逻辑图等的深入分析,寻找喘振的根本原因,以期为解决喘振故障提供一些思路。 Air China PW4077D fleet since the introduction of more than one air surge occurred, resulting in delays and non-planned aircraft replacement and other consequences, according to the engine manufacturers suggest that Air China has taken various measures, but the effect is not obvious. In this paper, through deep analysis of QAR data and logic diagram of deflation system, we find the root cause of surge and hope to provide some ideas for solving surge fault.