This podcast Aviation Maintenance Magazine addresses ongoing disruptions in the aircraft parts supply chain, which began during the Covid-19 pandemic and persist due to multiple interconnected issues. The podcast examines solutions to these bottlenecks, focusing on maintaining airworthiness as the paramount concern. It highlights Parts Manufacturer Approval (PMA) as a substitution option due to its FAA approval processes, and discusses how air carriers can determine PMA podcast eligibility beyond existing lists. Furthermore, the piece explores Designated Engineering Representative (DER) repairs as an FAA-approved method for aftermarket maintenance and introduces the Used Serviceable Material (USM) market as another resource for aircraft components, noting the role of the Aircraft Fleet Recycling Association (AFRA) in ensuring safe handling.