Deaglet

It happened to me too yesterday. Before Win-10 Anniversary Update, I performed a clean windows start, closing all the not-windows services. Probably you did that as well, if you had some system issues. Run "msconfig" and uder "Services" check the flag in the "FLEXnet Licensing Services" service. That should solve your problem. Diego.

Personally, at 100nm before the T/D, in preparation for the descent, among all the others things (calculations for vref, autobrakes, radio aids etc..) I set the Transition LEVEL in the DES/FORECAST page in the FMC, adding 1000 feet at the Transition ALTITUDE published on the destination airport charts. (e.g. approachin' LIMC, with a TA of 6000', i put 070 as TL). Obviously, I wait the final call from the ATC about it, 'couse the TL could be even 1500' higher than the TA due to a change in barometric pressure. Diego.

Thanks for your contribute, Dan. I'm going to do further tests about it.

Thanks, mate. So I'm going to shut them OFF when the level drop below 1 t. Thank you for your reply. Cheers, Diego.

It happens a funny thing to me. Consumig fuel in the central tank, It appears normally in the upper Eicas dispaly the message "Fuel Low Center" with the fuel quantity in the central tank in ambra color ... obviously, 'by the book', i switch the central fuel tank pumps off, and all things seems right, with wings tank pumps activated and central fuel quantity back in white... ... but just after a little ammount of time the "FUEL IN CENTER" pops out in Upper Eicas and central fuel quantity in ambra again. ... So, I switch the pumps back on: ... and after a while, the "FUEL LOW CENTER" came back again, with me switchin' the pumps off again. A this time, things remain stable, and the fuel in the center tank, slowly drop due to the scanvange pumps I don't think it's normal to switch OFF-ON-OFF twice the pumps in the central tank, but maybe there's something that I missed... I did few test in other flights. I tryed to not switch off the pumps after the first "FUEL LOW CENTER" message, and central quantity in ambra color, letting pumps ON. (round about a 1.8 tons in the central tank) After a while the message DISAPPEARED, and the quantity turned back in white color!!! Just like the plane "realized" the was not yet the right moment. Just after few minutes, when quantity dropped below 1.2 ton, the FUEL LOW CENTER came back one more time, so I switched off the pumps, just one time, for good. Anyone has any idea about what happened? What I have to do? Just wait that the message disappears and reappears for the second time before switching the pumps OFF? Thanks in advance for any help. Regards, Diego.