AP Engage not possible after t/o

[PeteSome 0]

Hi there.

 

I recognised that sometimes there is no chance to engage AP at any modus after t/o. And during cruise still no chance to swicht AP on. Only thing that is working is A/T.

No difference in cockpit preparation from days , when it is working.

I also saw that no FD cross shows on display. But FD on captain side was switched on.

Waht can it be?

 

Peter

[speedyTC 195]

Not a legal copy, perhaps?

[Haleo 3]

Active failures in the failure menu?

[James Bennett 52]

There are criteria that must be met before it'll engage, which are outlined the the product manual. Have you read this?

[Remy Laurent 0]

...like elevator trim !  :rolleyes:

[James Bennett 52]

Not a legal copy, perhaps?

 

Why do people always jump to this conclusion? That's not even what happens with illegal copies of PMDG products anyway; usually the screens blank after 15 seconds so he wouldnt really have time to get into the air and try the autopilot anyway.

[tsa737 6]

I had this exact problem and treated it like an emergency. I flew the jet manually and returned to the airport. I then re-read the manuals and had my "Aha moment". So as James suggested, sit back and read the manual.

 

Rob

[speedyTC 195]

 

 

Why do people always jump to this conclusion?

Not a conclusion. Did you miss the question mark? The first step in tracking down a problem(s) is eliminating the obvious.

[gjmyb 1]

Hi. I had a similar experience with A/P. It was due to a routine maintanance FAILURE and a simple removal of failures in the PMDG setup fixed it. 

[uragano 1]

CHECK the alignment about the 2 engines, if is present too much difference You will never engage the AT.

[kevinh 409]

Not a conclusion. Did you miss the question mark? The first step in tracking down a problem(s) is eliminating the obvious.

Eliminate the possible, not the impossible. Suggesting the OP has an illegal copy isn't helpful. There are more likely possibilities.

 

 

Sent from my iPhone using Tapatalk

[speedyTC 195]

Why do I bother...?

 

Out.

[FloSim 3]

Maybe you have realisttic A/P engagement turned on. That means, if the aircraft is too unstable, you cannot engage A/P.

[Mixman 0]

Make sure both flight director switches are on

[antalves 0]

Have a quite similar problem: after several and precious minutes of setting zilions of buttons, if I save and reopen the fly later,I must make all settings again. Is it normal?