I am frustrated to hell and back. Here's the history.

Running i72600 3.4 GHz, 8 GB RAM, (clears throat) nVidia Geforce 9600 512 MB (hey I got the rig as an upgrade and had to port over some essentials like the graphics card ), Windows 10.

1. I recently migrated to FSX SE after 8 years of boxed edition sp2 + accel. I had Captain Sim 777 base pack and Expansion running perfectly.

2. After installing FSX SE tried to migrate by simply copying addons  Obviously not going to work. No guages and landing gear

3. I installed version 1.4 which was the last one I downloaded and she showed up with everything appearing to be okay.

THIS IS WHERE IT GETS INTERESTING

4. I loaded up a flight Speedbird 2255 EGKK-TBPB FL360 initially using the CS 777-200GE. Everything went smoothly until on the flight route between GIBSO and DAWLY on the UL620 passing FL310, I noticed the aircraft not tracking the center of the magenta line. She was a bit right of center and crabbed ~5 degrees to the right. Within 4 mins later she lost it. She went into a a shallow right bank, departing the flight track completely. This got progressively worse until she was hard stuck in a 30 degree right bank. Not a problem. Use heading select to get her back on track and try LNAV again right? I discovered that ALL LATERAL AUTOPILOT CONTROL WAS NOT FUNCTIONING. Heading hold, heading select and LNAV did nothing to alter the right bank. Hand fly her back to the line, choose direct to the next waypoint on the FMC. Click LNAV again. Nothing! Selecting heading select or heading hold does nothing. The right bank comes right back. Lights on on the MCP, and mode status appears in the MFD but no change in the right bank. I ended up counting 5 right 360's over the english channel. Had to cancel the flight and return her to Gatwick by hand. Not very many happy holiday passengers in the back I can tell you that.

5. A little research online showed there was a version 1.6 which was an update especially for FSX SE. One of the fixes mentioned was "TRK hold issue fixed." Well there you go! There's your problem! Installed the update. Loaded the aircraft same problem. 

6. I wondered if it was a problem with the route so Operations instructed me to fly the aircraft to their maintenance base in Cardiff for a fix. Flew EGKK-EGFF FL120. She followed the route without incident.

7. At Cardiff, technicians discovered another software update that was not done. "FSX-SE-777-Migration.exe" Well we loaded that and we are not even sure if it installed or not because of the cryptic message which looks like this

AND SINCE I CAN'T POST AN IMAGE AS THIS IS MY FIRST MESSAGE - I'll have to say it says "exception caught. Completed, press any key to exit"

8. Flew her back to Gatwick at FL210. Again she tracked the route percectly and heading select vectors worked fine.

9. I have tried EGKK-TBPB no less than 5 times and the same issue happens at the same point. I have even tried a different route KMCO-KJFK and round about above FL300 the same right bank departure happens.

10. What is worse I cannot find ANYTHING ANYWARE on this issue. Surely I cannot be the only one experiencing this problem.

11. So in brief here is the problem summarized. Passing FL300 all lateral navigation modes, LNAV, Heading Hold, Heading Select, becomes unresponsive and the aircraft enters a shallow at first right bank that then proceeds to a 30 degree bank either indefinitely or progressing to 60 degree bank until it noses over.

12. Sent an email to CS on their general email address after searching hopelessly for a means of contacting customer support.

13. I did do a clean uninstall of CS777 and reinstalled. No luck.

14. Did I try the -300 model to see if it does the same thing you say? Well the I loaded -200GE in American Airlines livery and the -300GE in Air New Zealand livery and I had no gauges and landing gear...so  But that's for another forum, right? 

I will appreciate any help and I hope the answer is obvious and I missed something.

Cheers!

Markoz wrote on May 8^th, 2015 at 2:33am:


i am guessing this is my problem than. Whenever I try to RNAV GPS or ILS approach into an airport my plane lines up perfectly than decides to turn way off to the side and refuses to land. At first i thought it was an FMC glitch but now i want to load up Flight Sim Commander after a database update and then check their airacs versus the information that the FMC is giving me in the 777.

uriahms wrote on Sep 23^rd, 2015 at 9:46am:


Greetings, I'm wondering if you have located a solution to this as I am having the exact same problem. If you have a solution could you kindly share? Thank you. 

Does not follow LNAV after approaching crz altitude (FSX boxed).  Will not follow heading SEL either.  e.g.  with a crz ALT of 310 it will continue on in a straight line ignoring course.  LNAV, VNAV AP etc. all lights on.  When this happens I can use the yolk to turn the AC back to course and/or change ALT without disengaging the AP... is that supposed to work that way???  I don't remember it working like that; I remember the yolk NOT being able to steer or clb/des the AC when AP is engaged.

I went back to v1.4 and it does the same thing (I've had the 777 since it came out) .  Re-installed 1.6 = same.  Re-installed again = same problem.

Yes, I disable AV/Firewall when DL'ing and installing and create exceptions for the FSX drive.

Tried EFIS and DSP control both ON and OFF = same problem.

Re-calibrated my CH yolk/Quadrant/rudder both in WIN and in FSUIPC = same problem.

Running i7 2700k @ 4.2 GHZ/GTX670/16GB RAM very rare VAS problems.
FSX on its own SSD and WIN7/64 PRO

This problem started after a completely fresh re-install of FSX and my many payware addons caused by a disappointing stint with WIN10pro; it was a complete format and re-install of everything!!!  Great fun!!!

I did a ticket with CS.

Thanks,
Walter
 

I just purchased the 777-200 and expansions and I'm having trouble learning the FMC. I downloaded the 777 updates for each model and now the tutorial manual on the practice flight doesn't seem to follow the FMC. Is there a newer tutorial to download? This one is from Aaron Graham 2014 rev 1.1. (I could not figure out how to post a new topic so I used the reply button. Sorry if I screwed up). I forgot to list what doesn't work in the tutorial:
on page 7 it says to enter a value of 9450 kgs of fuel into the right and left wing tanks but doesn't say how or where, on page 8 section1. My FSXSE doesn't have a gate E20 so I'm trying B20 which is a "heavy gate"; on page 8 section 2, it says to enter "UM133" as our flight plan, I get an invalid entry; on page 9 section 3, says to enter 176.3 for gross weight but again I get an invalid entry. I check the weights in FSX (aircraft fuel payload section) per the tutorial but not convert toa number such as 176.3 etc. I'm looking on youtube for some video to teach the FMC. Thanks.

Thanks for your help. I did a youtube search for the CS cdu\fmc and the closest I found was for other 777 fmc. so I'll try that. 176.3 also says invalid entry. Just found this youtube video for the fmc: can't post it yet sorry it's by geolpilot

Well, here I am back again and still with the same AP problem as I had back in 10/2015, the date of my last post above. cs777 still not following FP after reaching ~FL300 after 3 re-installs of v1.6 on 200, 300 and freighter.  I've been programing the cs777 FMC since it came out and never had this problem till a re-install of everything (complete FSX) back in 09/2015.

FSX is on its own SSD and I always run as admin and UAC is off.

An interesting side note is that since the CS767 was on sale in the beginning of Janurary I bought that along with the tanker and AWACS versions.  needless to say... the very same thing happens with the 767 AP.

It seems there has to be some common factor between the two that is causing this problem.    

Is there an xml somewhere that could have bad syntax?  All of the nav files seem to be intact in both cases.

I am at a total loss...

Walter