Jay Honeck wrote:

Can that ignition switch be dismantled and repaired, or is this a
"replace-only" job?

I had a similar problem with mine (the key would actually FALL OUT)
in flight and it would appear to be in the OFF position and still
leave one MAG hot. I just replaced the blasted thing. A new bendix
switch wasn't that much. My ignition key didn't match the canopy
or baggage compartment locks anyhow.