Ed,
Yes, the A&P has to sign it off as an "acceptable" installation, but it
should be obvious to a majority
that want an owner's business that replacing a non-TSO Compass,
Airspeed Indicator, Tach, Altimeter,
Oil Temp, or Oil Press. with another non-TSO unit is "just as good".
Perhaps more to the point, adding non-required non-TSO equipment such
as a turn & bank, rate of
climb, heading indicator, artificial horizon, CHT, EGT (&
sensors/switches, carburetor ice detector,
GPS, strobe(s), instrument lights, OSA gauge, com. radio, intercom,
nav. radio, battery relay, electronics
bus, etc. obviously improves safety.
If such installations were discouraged by the extra expense of TSO
options far fewer would be installed.
Obviously that isn't in the "public interest".
There is no "just as good" requirement...because it wasn't there before.
Regards,
WRB
--
On Mar 25, 2009, at 21:54, Ed Burkhead wrote:
Bill,
No, you didn’t miss anything.
I think you are right that we do NOT have to install TSO items. But,
wasn’t there also discussion that we had to get it approved by our A&P
and/or AI who had to sign off that it was as good as original
equipment and how could he know that if it’s not TSO?
Probably I shouldn’t have posted any comment at all.
Ed
