The audio panel must have heard I was thinking about upgrading the 430's to a 750 and decided it wanted to be jealous.
Random training flight and I start getting a repetitive, "check engine speed" and check "boost", started repeating these 2 phrases over and over, started by providing about 15 seconds between them and then continually repeating, never heard it before, my engine monitor is an older JPI 700, so nothing fancy there. Thought it was something in the bluetooth between the phones and ipad, turned all of those off and it still continued, on the pilot side only. Tried to diagnose in the air but just couldn't figure it out. Landed OK, found the audio panel circuit breaker, pulled it, let it sit for a minute, pushed it back in and the female voice is gone. During the quoting process of the 750, not but last week the avionics shop asked me if I had any problems with the audio panel. Naturally I said "no problems", I don't want to pay for a remote audio panel when this one is working fine......Now I am questioning that statement. Everything is 22 years old so maybe it is failing? Need some guidance before I spend money I don't need to spend.