On some aircraft a key can be removed and the magnetos remain active when keys and switch get worn. There have been several REX to this effect in recent months.
There were some ADs on these switches over the years. Probably, a lot of maint people don’t do an AD check and somebody finds out the hard way.
albeit not in a position likely to be pushed inadvertently
I would be a lot less concerned if it was thus located, too, but on the TB20 it could be easily kicked.
