Want To Buy Looking for Garmin GTR 225

[hamer]

If you have one let me know.

Thanks,

 

[bradg33]

Why not buy a GTR200 and install it as a minor alteration? Lots of authority out there that a Comm radio doesn't necessarily need a TSO.

 

[hamer]

I did not know that was possible, I'd much rather do that. Thanks for bringing it to my attention. If you have any other details on that, let me know.

 

[brcase]

The details are that there are no details. Who ever says it needs a TSO needs to provide the documentation saying that it must be TSO'ed. Easy to do for something like a Transponder. But mostly there isn't anything requiring a TSO for a comm radio. Maybe for 135 or 121 operations, I haven't looked.
Lots of equipment is commonly installed in certified aircraft that never had a TSO.
Somebody please let me know if they can find the TSO for a G-meter, clock, or Vacuum Guage.
Even if a TSO exists, there still needs to be a requirement that the instrument being installed needs to meet the TSO. like FAR 91.215.
It is possible that a manufacturer might require certain equipment installed in the aircraft to meet the TSO, but again documentation should be provided before saying the equipment you want to install must meet a TSO.

Pilots, Mechanics and even the FAA frequently like to quote rules that don't exist.
two I have heard from FAA inspectors...
Fuel caps on a 172 must be painted red?
Passengers can not be carried when towing a glider?

Brian

 

[hamer]

Thanks Brian. That makes perfect sense. My airplane is a C120 which never had an electrical system to begin with, so I'm sure that gives me even more flexibility in terms of what can be installed.

 

[bradg33]

You do need to find a friendly A&P willing to do it. Don't expect any avionics shops to sign off on that install. It's perfectly legal in most scenarioes, but a lot of folks will refuse to do it because it doesn't given them the warm fuzzies that a TSO does.