"G.R. Patterson III" wrote:

I would guess that a couple of wires are
swapped in the connection to the head.

If it's an avionics tech who screwed up, after he's fixed it, he'll say that
he found that the such-and-such signal was 180 degrees out of phase. Sounds
a lot better than saying that he got the wiring screwed up.....

--
Mike Granby, PP-ASEL,IA
Warrior N44578
http://www.mikeg.net/plane