Tom Cummings wrote:

My King KT-76A transponder has a stuck "Ident" button.
It stuck when activated for ATC on the last flight and the button appears to
have colapsed sideways underneath the cover panel. It is no longer visible
in the opening now. ATC says the unit indicates an "Indent" signal
presently.
Does this require an avionics shop to repair or could it be a simple matter
such as removing the unit, then remove the cover plate and look for a
colapsed return spring?
Thanks,
Tom

When I read a message like this it scares me to think you're sharing IFR
airspace. Hopefully, it's in not in conjested airspace.