The original finding aid described this as: Description: Pilot Fullerton (120-1), wearing communications kit assembly (ASSY) mini headsets (HDSTs), records Plant Growth Unit (PGU) data for the Influence of Wei More
STS003-22-122 (30 March 1982) --- STS-3 Commander Lousma, wearing communications kit assembly (ASSY) mini-headset (HDST), records Plant Growth Unit (PGU) data for the Influence of Weightlessness on Plant Lignif More