738 N-1 fuel estimate ?

[fredNG]

Hi To all,

Do you know where, in the Boeing documentation, I could find
anything telling me if the Fuel Estimate is right or not when
I am in a Engine Out situation ?
Thanks for any answer, bye.

[Fullblast]

If you're talking about the FMC fuel predictions the answer is no. Fuel predictions are not correct in case of engine out.

From FCOM 2:

When an engine failure has been detected, the thrust reduction height and the all engine acceleration height specified on TAKEOFF REF page two will be ignored. All waypoint fuel, ETA, Progress page and LEGS page performance predictions will be blanked. Upon exiting the engine out takeoff flight phase, the performance predictions will be displayed.
If an engine failure is detected after the all engine takeoff flight phase is complete, there will be no automatic engine out VNAV function as well as no modification of the Climb page.


FB

[fredNG]

Hi FB, ok thank you very much for your answer. Do you know if somewhere it is stated that the "destination" FUEL information in progress 1/4 is not correct when in Engine Out ?
Thanks, good night.