Due to long use of time, then the plastic gear is break down and can not re-joint them with screw and glue.
Then, I do aluminum pole 6x6 mm. and insert it to the original gear.
with a 5 mm hole at the bottom.
It is good as following,
But the 6x6 pole is too small and making that small whole on the original gear is a bit difficult.
The following is the drawing of making the bigger one for inserting to original gear.
406 D9 AirFlap control gear
Moderator: RichardW