The crew consisted of 3 people, Musa Manarov (Commander), Vladimir Titov (Flight Engineer) and Valeri Polyakov (Research Doctor).
In June 1988, the spacecraft Soyuz TM-5 arrived at the station carrying the three-person visiting crew of Mir EP-2.
Aleksandrov was the second Bulgarian to fly in space, the first being Georgi Ivanov, who flew on Soyuz 33 but failed to reach Salyut 6 after an engine failure aborted his mission.
During his visit, Aleksandrov used nearly 2,000 kg of equipment delivered by Progress spacecraft to conduct 46 experiments in the Shipka program.
Also on TM-6 was the two-person crew of the visiting expedition Mir EP-3, consisting of the commander Vladimir Lyakhov, as well as the first Afghan cosmonaut Abdul Ahad Mohmand.
The first spacewalk (also known as "Extra-vehicular activity", or EVA) of EO-3 took place on 26 February 1988 (4h 25m) replacing a segment on a solar cell.