Tim, Looking at the QRH, there is a full page of information and procedures to follow after the loss of AP, in flight.
First, go to the instrument source select switch and select ALTN.
Place both pilots' HSI range selectors in same position
If left FMC failed, select Right AP or center. Leave Vnav on to have AT.
Some notes about ATC.....

If both FMC fail, it becomes Complete FMC Failure.

In that case, use VOR, DME and ADF , Radar to navigate on raw data.
Plot and do position update as needed to maintain correct ground track.
If this fail, ask ATC for DF steer
Use heading select mode and raw data on HSI display.

The B757 is one of the most reliable and safest plane. Mine is anyway !

Happy Flying ! �

Raymond � �Boeing or nothing
KFLL � � South Florida

I'll reinstall and see if it helps. I'm wondering, could the joystick contribute to such behavior? I keep my joystick calibrated, but something weird is going on with it, because when I slew, the airplane isn't still. But keep in mind the autopilot doesn't go off, it just violently flips out.

Thanks for the info about the autopilot failure, Blover, but it's hard to find the right page when you're barrel rolling in a dive! �

UPDATE: I reinstalled per Mark's suggestion. I also examined my joystick. I have a Logitech 3D which has served me faithfully, but is really sloppy now. I found that the sensitivity was at the max, and null zone at the minimum. I using slew to experiment with different settings, I finally arrived at settings that were less sensitive. I don't know if that could have anything to do with my problem, but anyway, it is a lot better this way.

So I had a wonderful scenic flight up Central America from Bogota, Columbia to Mexico City, Mexico. The 757 performed perfectly (except for the no T/D issue). So whatever the issue was, apparently it's fixed.

I don't trust accelerated time at all due to similar experiences. Do I remember reading somewhere that Captain Sim does not recommend the use of accelerated time? But what you described is exactly the problem I had (without accelerated time).

So many variables! But if the 757 does as well as it did last flight I may never fly anything else 

SWA4420 wrote on Nov 28^th, 2013 at 5:23pm:


For some people it is not even stable at normal time. Anything above normal and you are just asking for trouble.

Michael Cubine

I use Active Sky 2012 and it's (the CS 757) fine with that. The only CS aircraft I flew when using the trial version of ASN, was the 777, and until I used easy settings, it was a difficult flight. Be aware that the problem was had by my other addon aircraft with ASN too, which made me decide not to buy it (for now).

I seeing the same thing with ASN usually when turbulence is present. The rolling parameters had to be tweaked down to make the 757/767/777 to fly well, with ASN increasing the intensity of these effects, these params may need to be tweaked down even more.

Here we go ahead again, this time, I see N1 is at 0%.    I wonder if my throttles are fighting each other (ch yoke and go-flight throttles).