"Peter R." wrote in message
...
Julian Scarfe wrote:

I think the authors of GASIL do a generally good job in producing
something
that is bound to be didactic. But this is one of a few examples of
really
awful science. So the autopilot makes an uncommanded roll and one of
the
passengers happens to find a mobile phone on. So the mobile phone must
be
responsible for the autopilot issue. Yeah right...

My KAP 140 AP made an uncommanded roll to the right after I invoked it
at cruise a few months ago. No cell phones were on.

An investigation by avionics later discovered that one of the servos was
defective and needed to be replaced.


For what it's worth, I made a three hour cross-country flight and
found my cell phone was on all the time when I went to cancel my flight
plan. On the way home I played with it in the cockpit (one hand firmly on
the controls) and found not one iota of problem -- including the KAP-140
installed in the 172SP. I do, however, turn it off when I can remember
because of the purported (implied) problems associated with the cell-phone
system on the ground. It (the cell phone) is virtually worthless in the
cockpit with the high ambient noise level anyway.