摘要: |
The study summarized in this document focused on the rudder system of the Airbus A320 family (A318, A319, A320, and A321) and included a review of the system description and a safety/reliability analysis. Of particular interest were recommendations for aging, infrequently maintained, or uninspectable parts, and parts that may have latent problems. The study found that the failure probabilities evaluated fell reasonably within the regulatory requirements. However, it also found varying degrees of dependence in the designs of redundant paths. Few corrosion issues were identified. The refurbished parts evaluated in this study had similar failure modes as original parts but had significantly shorter product lives than the original units. |