DG-1000 undercarriage collapses and inadvertent extensions ?

While flying a 1000 at the Seniors a couple years ago I heard the gearing
warning horn on short final, checked that the gear handle was down, landed,
rolled 2 meters and the gear collapsed. I assumed I hadn't "seated" the
handle right and flew the next day without further investigation. The gear
collapsed again.

Looking into the landing gear operation revealed the problem and it is not
an "over center" condition. The down lock for the 1000 gear is a steel plate
under the left plastic trim panel that hides the gear push rods running
between the two cockpits, just below the canopy rail. There is a tab on the
push rod that is supposed to rotate behind a steel plate far enough to
prevent the push rod (and handles) from moving out of the down position.
This steel plate was incorrectly positioned so that the gear was barely safe
in the down position, but with the slightest rotation inboard or vibration
on landing it became unlocked.

It was a very simple matter of repositioning the plate to correct the
problem.

Karl Striedieck



"Andreas Maurer" wrote in message
...
On Wed, 18 Apr 2007 20:41:28 -0600, Shawn
wrote:

Anyone seen this problem in the 505?

Nope. No problem at all in the 505.

Bye
Andreas