Gentlemen...
Can anyone tell me with any certainty, whether the NG FMC, (-700 IGW with U10.8A or the U10.7 installed) has the capability to modify the indicated fuel on board.
I'm trying to find out, because I've been told that you can't do it inflight, even though there is an NNC in section 12 of the QRH that directs accessing the FMC CDU PERF INIT pages and updating the fuel in tanks periodically, when the aircraft fuel indications fail!
I'd be surprised to find this is an option, since the NNC doesn't mention any specific serial numbers, or "If optioned" type statements.
Thanks,
EW73