The dud failure reasons of electric match been stored for many years in fuze were analysed by FMECA and FTA. Through qualitative analyzing, the influencing factors were found.

• 采用FMECA和FTA技术,对某引信中的电点火头瞎火进行综合分析,得出了该电点火头失效的可能原因和原因组合,以及对其失效危害性最大的影响因素。