This example of fail safe structure is based on the lower wing structure shown in Figure 1.3.11.  The structure is assumed to be a Fail Safe Multiple Load Path Structure and the steps required to satisfy this requirement will be outlined.  The structure will be designed to be Fail Safe by virtue of being able to sustain the failure of one major load path or skin panel and still maintain the residual strength and remaining structural guidelines.  For illustration purposes, panel ­ was chosen as the critical load path.  Although the loss of panel ­ is critical from a remaining structure point of view, every panel must be designed to meet the intact guidelines.