[en] At the present time, approximately 65% of the Phase 1 and 2 tests have been completed. The major systems which have been tested and are now operational to support sodium fill are summarized. On July 2, 1978 the first secondary loop was filled with sodium and pony motor flow initiated on July 3. Sodium sampling and cold trapping procedures were started immediately thereafter and are proceeding well. The preoperational Integrated Leak Rate Test of the containment building was satisfactorily completed on June 2, 1978. Presently, major emphasis is being placed on completing those test activities which are prerequisites for sodium fill of the remaining two secondary loops and the primary system. In particular, emphasis is being placed on dry refueling system tests and inerted primary cell leak rate testing since these two efforts present the major workloads remaining in the prerequisites to sodium fill of the primary system