Legal Radio Installation

Gene Kearns wrote:
:Would the new AC 20-138a change that requirement now? See
:http://www.aea.net/aeatodayDetail.asp?ID=256
:

: My understanding is.... it would.... as long as the installation was
: not interfaced with another unit....

: Since GPS is no longer consider a "new technology" it's installation
: is equivalent to old tech, like a radio...

..... unless you are under the jurisdiction of at least the Richmond FSDO. I'm working
with my A&P/IA on installing a KLX-135 VFR GPS/COMM and the guy at the FSDO insists
that it's still a major alteration. Funny thing is that apparently, the act of
installing a placard saying "VFR use only" enters a whole new set of regulations
(think field approval along with major alteration) than utilizing the on-screen
message that reads "VFR use only." I don't understand it, but am rapidly concluding
that rational thought has nothing to do with it.

-Cory

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