Jacob wrote:

If somebody's mic gets stuck on a
class B frequency (either the pilots fault or the mic breaking), would'nt
that be a big problem? How would they even track it?

Class-B airports have several frequencies. For example, Boston has two approach
frequencies (four if you count the high frequency stuff that standard COMs don't
use). New York has nine. You're supposed to use one frequency if you're
approaching from one arc and another if in a different area, but a pilot who
finds one frequency blocked is likely to try another. In addition, most traffic
entering a class-B is likely to be on an IFR flight plan and already talking to
ATC. Any of these aircraft can be instructed to use an alternate approach
frequency instead of the blocked one. The controller would also cut a new ATIS
tape and provide the alternate approach frequency on that tape.

Aircraft landing at the class-B are told to contact the tower on a frequency
assigned by approach. If the tower frequency becomes blocked, approach can
simply assign a different frequency and the tower controller can then swicth over.

Of course, the guy with the stuck mic is likely to have some problems. He's
probably just lost communications in the middle of a class-B. It's also going to
be pretty obvious to the controller which plane has the problem when they call
him and nothing happens.

George Patterson
If a tank is out of ammunition, what you have is a sixty ton portable
radio.