We have a "dead zone" at our field where, occasionally, we get glitches as we fly by or through this area. We try to avoid it, but, well, often we just forget it's there. What results is a bump or a small change in something, throttle perhaps... but we witness something strange in that area. We can't define why because it's at the other end of the field where the power lines are (which are about a half mile away) so we can't explain it, but it's there and occasionally, we see the results.

As I said, nothing catasthrophic, just a glitch in operation. Even the pattern folks have noticed it, so it's not in our minds.

CGr.