Originally Posted by
vilas
The indication is half-boxed in amber, if: Center tank pumps fail, or are switched OFF. Both transfer valves fail to open, when the inner tank is at low level. Any ACT@ is not usable. Ident: DSC-28-20
I believe the above is for the half-amber box under the
FOB indication and not for the half-amber box under
Tank Fuel Quantity.