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DTD Handbook

Handbook for Damage Tolerant Design


Section 1.3.7.2.11. Alternative-Analysis of Remaining Structure Subsequent to Load Path Failure

As indicated in 1.3.7.2.10, the designer may choose to depend upon the depot level inspection instead of the walk-around visual.  This would be a satisfactory alternative and for this situation the assumption would be made that the major load path failed between depot level inspections and that the aircraft would be designed to operate safely with the failed load path until the next depot inspection.  Figure 1.3.24 illustrates this case.

 

Figure 1.3.24.  Illustration of Damage Growth and Residual-Strength Guidelines for Remaining Structure-Depot-Level-Inspectable