I'm having my pitot-static system certified, but it was discovered that my altimeter isn't working correctly and I need a new one. I'm OK with that, of course, but the tech is saying that I must replace it with one that has been TSO'd? The ones from Van's aren't TSO'd and I thought one of the advantages of an experimental plane was TSO'd parts weren't necessary. Can someone clarify this for me whether I'm right or wrong? If I'm right can you tell me what I can cite for evidence? He mentioned to my mechanic that the FAA was the only one who could answer it?
Thanks for any and all advice.
Thanks for any and all advice.