Jerry Jesion wrote:


Be careful about flying with visible metal in the filter. I had a
similar problem with my O360. Metal in the filter and I grounded the
airplane.

I don't have a filter on my 470 just a screen. I only look at the
screen once a year, at the annual. A couple years ago I started to lose
the starter adapter. The shaft of the adapter shed some metal. We
found that in the screen at the next annual. No way I automatically
ground the plane because of a little metal. You have to find out what
it is and then figure out why it's there. Some metal it doesn't matter.