Based on the latest requirements of AC25-19A,in the safety assessment process of civil aircraft cabin doors,the operating environment and operating frequency of emergency doors should be considered to identify latent failures and wear failures.For latent failures and wear failures,an analysis process for the candidate certification maintenance requirements(CCMR)of the cabin door system was established,and a calculation method for the risk exposure time and failure probability of latent failures was provided.The maintenance task content and interval were determined,forming an analysis method for the candidate certification maintenance requirements of the cabin door system.At the same time,the safety impact of the cabin door was iteratively evaluated after the development of the CCMR project.The results showed that the developed CCMR project can timely detect important latent failures and wear failures of the emergency door while ensuring the safety index requirements,and the task interval of the CCMR project is reasonable.
关键词
应急门/隐蔽失效/磨损失效/候选审定维修要求/暴露时间
Key words
emergency door/latent failure/wear failure/candidate certification maintenance(CCMR)require-ments/exposure time
维普
万方数据