Arabbit.305 net.space utzoo!decvax!ucbvax!mhtsa!rabbit!sjb Wed Mar 3 07:21:27 1982 Shuttle News At 1800 EST yesterday, a ``call to stations'' went out, signaling the commencement of the loading of toxic fuels into the shuttle's orbital maneuvering system and reaction control system. These guide the shuttle's pitch and yaw during flight. Testing and preparations on systems have gone on without trouble, and actual loading is scheduled to begin at midnight tonight.