drseti wrote:3Dreaming wrote:Appendix A to Part 43 is the final authority. The FAA has said that manufacturers can not take away or give privileges that are given in the regulations.
Yes, Tom, we've had this discussion before, and generally I agree that Appendix A dictates. But remember, under Part 43, compliance methods employed are still dictated by the manufacturer, so to that extent, an owner/operator must still consult the maintenance manual. Nothing in Part 43 Appendix A says you can disregard the manufacturer's procedures when performing PM tasks.
"(a) Each person performing maintenance, alteration, or preventive maintenance on an aircraft, engine, propeller, or appliance shall use the methods, techniques, and practices prescribed in the current manufacturer's maintenance manual or Instructions for Continued Airworthiness prepared by its manufacturer, or other methods, techniques, and practices acceptable to the Administrator, except as noted in §43.16." Notice that there are other ways to perform maintenance besides the manufacturers MM.
I didn't say you should not follow the manufaturers procedures. What I said is the manufacturer is not the final authority. The FAA is the final authority. If there is an item listed in appendix "A" that is not in the aircraft MM it can still be done as preventive maintenance if the procedure can be performed using other methods, techniques, and practices acceptable to the Administrator. If it does not involve complex assembly operations.