Launch from Baikonur; landing 200 km southwest of Kokchetav.

Docking with Salyut 5 was problematic, because of a failure of the Igla system; main military experiments. Observation of aquarium-fishes in the microgravity. Solar observation and biological observation (plant growing) were carried out. The Kalialaun-experiment was needed for observation of crystal grooving in space. Also a TV-conference with pupils was held.

Premature return to Earth because of suspected toxic gases in the spacestation. Zholobov suffered from space sickness and homesickness and the crew from psychological problems; at landing date the crew was in very bad psychological and mental condition. So it could be, that the problem with toxic gases could have been only a pretext, but nothing is sure.