I'm guessing that the excess airspeed on the "doors" caused one of the doors
to pop open a bit and the micro switch thinks the door had come open.

I used to run into this all the time with a miss rigged nose gear door, bump
through some turbulence and the "gear in transit" would light up, only way
to clear it was to slow down and cycle the gear to get it to re latch.

BTW, I'm not sure about the older 180HP arrows, but most of the newer Arrows
have the auto extend mechanism disabled by either an AD or a Service
Bulletin.

Try a power off stall and see if the gear extends, it should not.

BT

"Roy Smith" wrote in message
...
I was on a training flight a few days ago in a 180 HP Arrow. I was
demonstrating pitch stability. We were trimmed for straight and level
cruise (something like 23 inches and 2300 RPM at 3500 feet) when I
pushed us over into a dive, letting the airspeed climb well up into the
yellow arc.

Here's the strange part; the yellow "Gear in Transit" light came on
during the dive, as if the auto extension system thought we were trying
to land. The gear didn't actually extend, but the light came on and
(IIRC) the warning alarm when off too. I don't remember the exact speed
this happened at, but it was certainly well above Vlo.

Anybody have any idea what might have caused this? The auto extension
system relies on a combination of airspeed and throttle setting, but
both were well outside the normal operating conditions to trigger a gear
extension.