5-0U3-003 indexers vr<,re added to the SCAT system fast/slow output to provide ii- heads up display of the flight director fazt/slow indicator. The Indexer control is installed on shelf No. 1 of the electronics compartment at F.S. 169. Installed an 1DC 18495E SAT/TAS Indicator with a Rosemount 107.h.7.