All cyclically loaded cranes develop cracks over time, and if a crack reaches a critical size, the component fails without warning. While this is a serious threat, it can be managed. In this article, Michael Jordan and Simo Hoite draw on Liftech's five decades of experience helping clients with fatigue and fracture issues. They explain how a structural maintenance program carried out by competent personnel can help manage this risk and share lessons learned from two crane failures.