This SAE Aerospace Standard (AS) provides general requirements for components that are used in commercial aircraft hydraulic systems. It also includes the 14 CFR Part 25/CS 25 regulations that apply to hydraulic components.
It also provides information to be included in the Procurement Specification in Appendix A and a checklist for design reviews in Appendix B.
It does not provide requirements for distribution elements such as hoses, pipe fittings and general tubing.
The changes to AS4941 at Revision B include:
a. Additional technical requirements including removing all references to JAR airworthiness regulations b. Editorial changes including re-organizing some of the sections and updating the references