806 | Event | 4/21/1978 | Space Shuttle Orbiter cluster test, propulsion test, main propulsion test firing, group of 4 cvs, 2 unk RSC (1 w/Marshall Space Flight Ctr., AL cnx, 1 w/Bay St. Louis, MS 4 bar, 2 National Space Technology Laboratories (2 diff Marshall Space Flight Ctr., AL cnxs) | $20.00 |