2014年1月1日 · For certain inspection, repair, modification and replacement plan, the purpose of WFD evaluation is to predict the ISP and/or SMP for the WFD sensitive structure. The ISP or …

Guidance for extending an LOV approved under § 25.571, § 26.21, or § 26.23 can be found here. The actions described in this AC are meant to prevent widespread fatigue damage (WFD) in …

2011年1月1日 · This article introduces innovatory changes and background to inspections of WFD for transport category aircraft which have resulted in the amendment 25-132 of limit of validity …

2020年5月21日 · The Widespread Fatigue Damage (WFD) phenomenon is recognized by the aviation industry as one of the biggest threats on structural integrity, especially for ageing...

2019年7月3日 · From the cumulative distribution it is possible to determine the WFD AVE, and then the necessary maintenance actions (ISP=N 01 and SMP=N 05, in case the inspection is …

2011年12月31日 · This article summarizes a series of important actions and their relevant results to preclude widespread fatigue damage (WFD), and then analyzes some unsafe factors …

2014年12月31日 · Either the determination of ISP and/or SMP, or WFD (average behavior) should be based on service history, test data, fatigue analyses, damage - tolerance analyses, …

广布疲劳损伤(Widespread Fatigue Damage,简称WFD)是Aloha事故揭示出的一种新的结构疲劳破坏形式,是飞机结构持续完整性重大的威胁。 多位置损伤(Multiple Site Damage,简称MSD)是 …

2020年3月27日 · 根据框结构的可检性，可以确定出检查起始点（ISP）和结构维修点（SMP），从而完成机身框结构的WFD 评定。 在金属机身研制过程中，为研究结构细节设计 …

Boeing Position on WFD Rule • Boeing supports Widespread Fatigue Damage (WFD) rulemaking to mitigate the threat of WFD for commercial airplanes • The FAA has made significant …