That's why I change the AP to the other side before changing the altimeter. To avoid such clb/des, although it's so brief that you will only change 10 or 20ft.
On the 330 it is "standard" to change to the other AP in order to avoid the problem.
But it's all about altitude maintenance and ATC, and I'm not sure if it will make a difference on the TCAS system.
Last edited by bmbahia; 3rd October 2008 at 04:27.
Reason: spelling