REFUEL IN PROCESS appear in green in phases 1, 10 if the refuel panel is not set in flight position.

REFUEL PNL appear in amber in phases 2, 3, 4, 5 (after engine start) if the refuel panel is not set in flight position.

T TK XFRD appear in flight phase 6, 7, 8, 9 when the trim tank has been emptied following a forward transfer.

TRIM TK XFR appear in green during outer tank transfer.

OUTR TK XFRD appear in green when the outer tank has been transferred into the inner tank.

OUTR TK XFR appear in green during outer tank transfer.

FUEL X FEED appear in green when X FEED valve is open (automatically or manually). It becomes amber during takeoff (phases 3, 4, 5)