From the introduction: Repairs come in many forms depending on what is being fixed: System Strain, Hull Trauma, Components, or optional Wear. Repairs can range from simple rebooting of systems to routine maintenance to major work being done at a starport. Most repair rules are covered in the Core rulebooks, but they are spread out and sometimes contradictory. Below you will find the core system summarized (with some house rule tweaks) along with expanded Spare Parts, Salvage, and Wear rules.