Insufficient fuel warning

[JoeMaynard 0]

Hello everyone,

 

I always use pfpx to calculate the route and fuel for my flights. On my last few flights, I have gone through the same procedure I always do. I go into the fuel and payload page, enter my ZFW and amount of fuel. However, I always get insufficient fuel warning. It's never true though, and on the progress page it shows I'll land with remaining fuel. Why is this happening now? How do I fix it?

 

Joe Maynard

[Budbud 227]

Hi,

 

The insufficient fuel warning warns you that your fuel at destination is expected to be less than the reserve value you hve entered in the init page.

Also, the fuel calculation by pfpx takes the wind into consideration.

So if you get the warning message it may be because either the reserve value you have entered is too high or that youhave not entered the wind forecast into the rte page of the CDU.

[Tony747-400 44]

Insufficient fuel warning Is when the FMC calculates that you will be using the fuel you entered as reserves in the FMC