ILS suddenly dies in FSX

[mmakela]

airbus A320 is my aircraft. I mean that all flight phases are correctly
Made from programming mcdu to fcu handling. Pressing right buttons
at right time. I follow routines from real life videos and manuals
such as great a320 training videos in youtube and manuals from mycockpit
Site.

[David7700]

Got you. I know nothing about the A320, but a friend of mine is a Captain for United flying the A320 out of KIAD. I can ask him. What specifically do you want to know?

[mmakela]

Thanks David, good to know this option. I'll get back to You
when there is a question that needs some clarifiction. Right now I
have lots of excellent resources to check. Pm has announced they
have checed their software with real pilots. I wonder if they used
FSX thought.
I'll try push APP button right after ap LOC comes alive.
Then I check pm fcu window that all seems ok. We'll see
what happens.

[David7700]

Great. Let us know how it works out!

[JonathanRichardson]

Hi

Just to clarify, it is an error, which is a random error, it is not generally caused by ops. If you perform a correct procedure for VOR/LOC and eventual GS capture, the GS problem can still happen in FSX (not FS9 [at least I never saw it in FS9]). If you get the error, it is always just at the GS capture point. You will observe the FD going full scale up, and if you don't disengage the AP pretty quick (if it is engaged), the a/c will follow it up. The only option now is to ignore the FD PITCH commad or turn off the FD, and follow the diamonds down. The ILS diamonds are still correct. It is an error in the AFDS. We are still trying to find it and why this only appears to happen in FSX and for that matter for only a few users / customers.

Regards
Jonathan Richardson
Project Magenta

[mmakela]

Hello Jonathan, thanks for joining discussion here.
I flew at least half Year without this problem.
It is a pity I did not notice and remember after
what did this come up. I had earlier
versions of pm software, fsx sp1, and ifdg airbus
model. I guess it came after fsx sp2 and some
Fcu update. Just guessing thought.
I hope You can fix this. Fsx looks marvellous
with flight1 European landclass and REX.
-----edit----
... I remember one experience between Helsinki and Stockholm EFHK-ESSA and its route "runen-un872-xilan".
After last waypoint TEB before turning to the left to RWY 01L it is a quite steep turn to the ILS path. The plane is
trying to stabilize to the right ILS direction 008 degree, and it usually misses G/S path.
But, if I turn to the right after TEB and go 10nm further opposite direction (190degree) from RWY then make a turn to
RWY direction, push LOC and push app just before G/S diamond reaches middle, the plane goes down as it should...

[mmakela]

All went well. landing rwy was 19R and star was xila3p.
Just before turning to final plane dropped it's altitude agressively.
I heard v/s warning but plane stabilized to 2500ft quite soon.
I pushed app and ap2 earlier than normally. I activated appr
Phase a little bit late thought. I wonder if that caused the alt
drop as I mentioned above.
I'll keep testing...

[mmakela]

Succeeded again. Same conditions and procedure.
... keeping on testing...

[mmakela]

Now it seems to work. I push app and ap2 right after
Loc comes alive. My speed is 180 and plane descends
to ils vertical path. One thing is that I fly further from
Rwy to make final turns.

[mmakela]

... And yesterday it did not. Well, before final turns the plane goes suddenly up
like go around? Then it descends and goes up again and
Then down? It stabilizes ok before
loc and g/s path but stays in altitude
that I did put in fcu autopilot, here 2500ft.
I checked mcdu approach plan and all altitudes
were right. ???