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Adam Midkiff

Fuel loading via MCDU

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I apologize if this has been discussed somewhere.  I searched, but couldn't find anything.   For some reason, in the past few days, I can not load my fuel via the MCDU on the PMDG 737NGX.  I have always gone in and changed the values and it worked fine.  Now I change the values on the MCDU, but they do not change the values in the actual tank.  I enter 10,600 pounds on the MCDU and it looks correct, but the aircraft still shows 45,700.  I had to go into the FS menu to change the fuel.  Something I have not had to do with this aircraft before.  I have made no changes or updates to anything on this computer before it started doing this.   Any assistance would be greatly appreciated.   Thanks

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Welcome to the forum. Please note that full names - first and last - are required in posts here.

 

 

 


Now I change the values on the MCDU, but they do not change the values in the actual tank.  I enter 10,600 pounds on the MCDU and it looks correct, but the aircraft still shows 45,700.

 

On which CDU (MCDU is Airbus :wink: ) page are you setting the fuel value?

 

Where are you checking that the aircraft is showing 45,700?

 

 

 


I had to go into the FS menu to change the fuel.

 

Definitely don't do this. It will cause issues.

 

 

 


Something I have not had to do with this aircraft before.  I have made no changes or updates to anything on this computer before it started doing this.

 

Likely either a change to your procedure, or you're too close to a default FSX fuel box and it's "refueling" your plane.

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On which CDU (MCDU is Airbus ) page are you setting the fuel value?

Where are you checking that the aircraft is showing 45,700?

 

Oh yeah. Sorry.   I am looking at the fuel quantity on the main screen

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What is this?

 

KERI_day.jpg

 

 

Oh yeah. Sorry.   I am looking at the fuel quantity on the main screen

 

What "main screen?" The CDU doesn't have a "main screen." Fuel needs to be set on MENU page > FS ACTIONS > FUEL & PAYLOAD.

 

The name thing is simply adding your name to your posts, by the way. Like mine, below \/ \/ \/

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What "main screen?" The CDU doesn't have a "main screen." Fuel needs to be set on MENU page > FS ACTIONS > FUEL & PAYLOAD.

 

Sorry.  It is the fuel quantity totalizer on the upper engine display unit.  The fuel entered in the CDU does not match the fuel on the totalizer

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Sorry.  It is the fuel quantity totalizer on the upper engine display unit.  The fuel entered in the CDU does not match the fuel on the totalizer

 

Where are you setting the fuel value? Please specify the exact page.

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Odd that with only 15,000 lbs of fuel the aircraft is only @ 7,000 lbs below MTW, on the CDU screen.  Also, ZFW +45K fuel = @ 167 GW, consistent w/ the 45K lbs of fuel showing on the EICAS (upper center DU) page.

 

By any chance are you using some addon to fuel/load the aircraft?

 

Mike

 

PS: I tried setting the fuel via the FSX menu but the CDU quantity is put back to the amount shown in the CDU as soon as I close the FSX fueling menu.  So even that doesn't mess it up.

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https://www.dropbox.com/s/irqjtkw94fvivy5/Screenshot%20%282%29.png?dl=0

 

I am going into the CDU, FS Actions, Fuel page

 

Looks like you're setting it in the right spot. As Mike mentioned, are you running any external VA programs or programs like FSPassengers that will load the aircraft? Have you manually edited the aircraft.cfg for any reason?

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I have made zero changes to anything on my computer, which is why this is beyond baffling to me.  I use VAFS for my VA, but it does not load the fuel.  I noticed also during this process that my Squawkbox isn't connecting correctly either (but that is a separate website to fix).  I flew the aerosoft Airbus into IAH the other day with no issues; Closed the sim for about an hour, then loaded up fresh with the PMDG 737 and this happened.  Have done nothing to change anything on my computer and it is killing me not knowing how it happened or how to correct.  Thank you guys for trying to help.  I appreciate it greatly. 

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What is this?

If you park near the fuel box it will fill the fuel tanks. That will overide any selections in the CDU.

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I have made zero changes to anything on my computer, which is why this is beyond baffling to me.  I use VAFS for my VA, but it does not load the fuel.  I noticed also during this process that my Squawkbox isn't connecting correctly either (but that is a separate website to fix).  I flew the aerosoft Airbus into IAH the other day with no issues; Closed the sim for about an hour, then loaded up fresh with the PMDG 737 and this happened.  Have done nothing to change anything on my computer and it is killing me not knowing how it happened or how to correct.  Thank you guys for trying to help.  I appreciate it greatly. 

 

Couple recommendations first:

Dump Squawkbox and go with vPilot. Much easier, more functional, and doesn't have the weird quirks that SB had.

If you don't want to go with vPilot, then I'd definitely suggest running SB externally (not loading from Add-Ons). There's a problem with the in-sim module that can cause a CTD.

 

Are you absolutely sure you're not parked next to a fuel pad/box/station?

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Posted Today, 01:09 PM

I have made zero changes to anything on my computer, which is why this is beyond baffling to me. I use VAFS for my VA, but it does not load the fuel. I noticed also during this process that my Squawkbox isn't connecting correctly either (but that is a separate website to fix). I flew the aerosoft Airbus into IAH the other day with no issues; Closed the sim for about an hour, then loaded up fresh with the PMDG 737 and this happened. Have done nothing to change anything on my computer and it is killing me not knowing how it happened or how to correct. Thank you guys for trying to help. I appreciate it greatly.

 

Hi, Adam,

 

Another possibility:  If you keep reusing a particular startup panel state, especially one you created, try eliminating that.  It might have somehow gotten corrupted.  Get rid of any default startup state showing in the CDU menu, let an NGX load (it should load w/ engines running and most everything on).  See if that makes the fuel problem go away.  If it does, create a new startup state from the engines-on/everything running startup state, save it, and make that the new default startup state.

 

Mike

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into IAH
Is this FSDT KIAH?

Are you absolutely sure you're not parked next to a fuel pad/box/station?

I don't know if you and Kevin Hall are joking or not. Can this really happen?

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I don't know if you and Kevin Hall are joking or not. Can this really happen?

 

Yeah. Back in the day you could also hit SHIFT+F or something and a fuel truck would roll up. Not sure if this is still the case. Haven't tried since FS98 or so.

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Yes I use FSDT for IAH and several other airports. I moved away from the terminal and started up on the runway just to ensure I was not near the auto fueler box. Sometime the scenery can hide the default stuff but it's still there. I will look into vpilot. I'm also going to reset the saved panel settings. I usually go with the cold and dark panel setup but I'll have to reset them to see. Thanks guys.

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Yeah. Back in the day you could also hit SHIFT+F or something and a fuel truck would roll up. Not sure if this is still the case. Haven't tried since FS98 or so.

 

Parked at a refueling station at San Diego/KSAN and the CDU fuel setting seems to hold, but occasionally the fuel quantity changes momentarily to maximum (46.X) on the EICAS, then back to 15K as set in CDU.  Shift-F produces a message that no fuel trucks are available at this airport.  Pretty sure KSAN is FSX default in my system.

 

Mike

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Yes I use FSDT for IAH and several other airports.
The reason I asked about IAH and FSDT was because during June, FSDT released KMEM which had several issues that needed to be fixed. The Couatl engine live updates were coming at you fast and furious. Even a Stand Alone Addon Manager was released. It seemed like every time I started a new flight there was a new update to install. This is how it manifested itself on my system. At KDFW when I turned to final for 17C, the NGX would move forward several thousand feet and then pause for 10-15 seconds. It did the same thing for the next 18 miles until touchdown. When I exited FSX, I downloaded and installed one of their airports. This was the last time I saw that problem. I would guess that I missed one of their many live Couatl engine updates. As remote as it sounds, it is something to consider since your issue is really perplexing.

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I don't know if you and Kevin Hall are joking or not. Can this really happen?

 

Thought  it  was known by everyone,  yes happens  at all airports   just need  to go  and  park  to next  to  one  of  the fuel  pumps  and  see  what happens,  also  you  cant  open  your  doors  as  well if  I remember  correctly

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