Bob Noel wrote in message ...

trust me, an open dooron a cherokee isn't easier to hear with
an ANR headset. First clue I had was a cooollllldddd breeze.

I had the opposite problem. While climbing to cruising altitude,
one of my exhaust tubes broke at the flange on the cylinder. I
noticed that the engine sound had increased substantially, but
initially figured that the battery on my ANR headset had died. It
took a few moments for me to realize that I wasn't wearing my ANR
headset that morning.

John Galban=====N4BQ (PA28-180)