For example, suppose ATC instructs the
pilot to turn off their radio. Do you believe that is an instruction that a
pilot is required to comply with?

It's not unreasonable. I've been told to turn off mode C, and if the
radio is causing interference (a stuck mike comes to mind) it's a
reasonable request.

But if ATC says "follow the Arrow" and the Arrow then proceeds to crash
into a mountainside, I don't think you'd be cited for disobeying the
controller if you choose not to customize your aircraft the same way.

Jose
--
The price of freedom is... well... freedom.
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