It has happened 3 times , with and without the hotfix. LNAV + VNAV engaged Reaching T/D the aircraft starts to descend BUT the speed increaseas. Why? Because sudenly the throttle is in manual..if i move them, N1 responds. BUT: A/T is engaged (Green light). I tried diengaging A/P and engaging again, LNA VNAV the same...Nothing worked.. Anyone else experienced this?

Could we have a screenshot of the descend page of the FMC?

Strange. What is your hardware throttle's position during this issue? More importantly what is your hardware throttle override setting in the CDU menu?

That is completely normal. In VNAV mode, during descend, AT engage ARM mode, so you can apply thrust if you want. Same as on takeoff roll, when AT force THR HLD mode. Few days ago, I decide to wash dishes during flight. I reset MCP altitude but left throttle levers to 100%. When I came back to check whats going on, I saw I'm 11000ft above descend path :D Lj. Prodanovic

But it shouldn't accelerate. It should decrease thrust, not increase.

PMDG SETUP > AIRCRAFT > EQUIPMENT > AUTOFLIGHT (page 2) > NEVER (default) or IN HOLD/ARM MODE ONLY (real world behavior)If you dont want your throttle override settings ever select NEVER ... otherwise you should move your hardware throttle to the right position

But it shouldn't accelerate. It should decrease thrust, not increase.

but if his hardware throttle is not all the way back it will increase ... Edit:the throttle will move to idle when reaching T/D point which is normal and A/T is in arm mode, but if you move your throttle away from idle it will increase speed ... thats why you have to sync your hardware throttle position with the position of the software throttle or disable this function with NEVER

So long as he doesn't move his throttles, Autothrottle will remain connected

I dont have a screenie. but i will have fraps enabled from now on to get in when it happens.. As far as the throttle: Show thrust lever position: YESA/T Manual override: IN HOLD/ARM MODE ONLY (should i put it to never?) p.s.: Yeap guys, i did move the throttles thats why! Thanks!

if he has jittering in his hardware throttle the game will recognise it as moving (bad quality hardware or old potis in the hardware)

Try setting it to never. It might work. Worth a try

I dont have a screenie. but i will have fraps enabled from now on to get in when it happens.. As far as the throttle: Show thrust lever position: YESA/T Manual override: IN HOLD/ARM MODE ONLY (should i put it to never?)

if you dont want your hw throttle overrides the software throttle then put it to never or leave your throttle all the way at idle the whole flight

p.s.: Yeap guys, i did move the throttles thats why!

glad we could help :)

A cuzco screenie from that flight for a thanks :)

I dont have a screenie. but i will have fraps enabled from now on to get in when it happens.. As far as the throttle: Show thrust lever position: YESA/T Manual override: IN HOLD/ARM MODE ONLY (should i put it to never?) p.s.: Yeap guys, i did move the throttles thats why! Thanks!

Welcome. IN HOLD/ARM MODE ONLY helps me reject takeoffs when I need to, but keeps me from screwing things up otherwise. Very nice screen.