Aresearch.90 net.columbia utzoo!decvax!ucbvax!mhtsa!research!sjb Mon Oct 12 19:33:55 1981 shuttle work The last loosened tile was replaced today, and work filtering nitrogen tetroxide fuel for iron nitrate deposits continued after a Saturday leak of toxic fumes. After the fuel is filtered, reloading of it into the Forward Reaction Control System will take place on 17 October.