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Grahm

FMC Hourly Bug

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Great program and highly addicting! I purchased the NGX July 15th, flying domestic USA and BDA and havent had any problems up until now.

I flew KIAH-SEQU yesterday without any problems. This morning I noticed on the ground after setting my FLT PLN FUEL etc... from SEQU-KIAH that FMC was giving me inaccurate times. So maybe I thought it would stabilize while inflight in CRZ. Well, it didn't. Every "time" portion of the FMC (format XX(Hours):XX(Mins)) was fluctuating intermittently. I shot a video to better describe the problem. You can see the HRLY portion of just going bat crazy but the MIN is sustained inaccurately. I've tried resetting the FMC and reloaded the FLT PLN and that did not work. Any ideas?

 

Well Error: I'm not permitted to upload my .avi file.

I've posted the video on Youtube:

http://www.youtube.com/watch?v=-J89e6VH0qU&feature=plcp

 

I'll reset the aircraft once at DEST

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I've only noticed some odd behaviour like this when I had a messed up flight plan, the FMS had a lot of trouble trying to compute the plan/estimates it kept fluctuating. I have forgotten the exact cause but it was some waypoint issues. Try the same plan again, if it still does it change to another plan, if it stops then something is up with that first flight plan which the FMS has trouble with.


Jay Vorkapic

 

pmdg_trijet.jpg

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I saw this a few times also. It's been some time ago now. I never did figure out what the problem was.


Daniel Nilsson 

 

1095682.png

 

 

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more than likely its some custom waypoint in a departure or arrival, like an INTERCEPT or something of the sort shifting all over the place, find it and delete it.


Bryan Richards

 

"People depend so much on automation that they forget how to get the automation to work." B.W.

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You need to read the tutorial #2, setting up the perf page on the CDU. If you put in a out of range temp, you will get wild ETA fluctuations etc. This has been mentioned in this forum previously, and confirmed by Ryan @ PMDG.


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