damage tolerance design principle that, if a part fails, prevents the propagation of failure effects beyond the container boundaries
NOTE 1 A contained part is not considered PFCI, unless its release can cause a hazard inside the container. The container is a PFCI, and its structural integrity after impact is verified as part of fracture control activities.
NOTE 2 In this standard, the term containment in most cases also covers items which are e.g. restrained by a tether to prevent the occurrence of hazardous events due to failure of the item.