My understanding is that if an aircraft is "equipped" it must be "transmitting". Grace period to get to your destination or a place for repairs if unit is TU in flight.
So, if you are on the ground and KNOW that your unit is broken(self inflicted or not)....NO MATTER WHERE THE HELL YOU ARE IN THE COUNTRY......you cannot fly. But.......if you do fly and avoid rule airspace
nobody will know......but you are illegal. As bone headed as the FAA is I cannot image this was their intent.
To bypass this, in my opinion, is to"unequip the equipment" somehow. TXP is part of the equipment so you can't disable it. That leaves only removal. Per UavioniX I was told you can uninstall
and install at your discretion ( from STC to no STC and back). What about paperwork? Is this different than going from wheels to skis and back? Can an owner do it once installed? Can an owner
remove a com radio, send in for repair, and rerack?
My take is that if you have UavioniX the owner can remove a couple screws, pull 2 more bullet connectors and he is unequipped until he wants to be equipped again.
Maybe time to get my unmost favorite organization involved........ACLU