Problem with the ATR 72 on an RNAV approach

User Support Hub Aircraft & Systems
, ,
1

Hello I have a small problem with the ATR 72 on an RNAV approach. When I change my altitude to switch to VNAV mode my TOD moves away. ditto, when I have to intercept my descent plan the APPR mode does not work. procedural problem or bug? Thank you for your answers

2

Change your speed to managed from auto

3

Do you dial in the lower altitude when you are at TOD or already some time before?

The ATR is a bit different than other aircraft as you can’t set the lower target altitude for VNAV Path much in advance.

4

Yes you can if you go to managed mode

5

just a little before maybe too much I will try to return to my altitude just at the TOD

6

What do you mean about ?

7

Wait until after the TOD disappears. Then lower your altitude. Then press vnav. This seems to work for me. Wait until on Final then press APP. V-FP will appear and actually engage 2 miles before the FAF (Glide slope intercept point). It then led me down to the runway threshold (a little short)

8

yeah this is an issue…also an issue with CRJ strangely (same dev)