Manned two crew. Docked with Salyut 6. Placed on board the Salyut-6 station a crew consisting of V.V. Kovalenko and A.S. Ivanchenkov to conduct scientific and technological investigations and experiments. Recovered September 3, 1978 11:40 GMT.
Manned two crew. Docked with Salyut 6. Transported a team consisting of V A Lyakhov and V V Ryumin to the Salyut-6 space station to conduct scientific investigations and experiments and repair work. Recovered June 15, 1979 16:18 GMT. Returned unmanned.
Jettisoned KRT-10 antenna from rear docking port.
Manned two crew. Docked with Salyut 6. Transported to the Salyut-6 orbital station the eighth international crew under the INTERCOSMOS programme, comprising V A Dzhanibekov (USSR) and Z. Gurragchi (Mongolian People's Republic) to conduct scientific investigations and experiments. Recovered March 30, 1981 11:42 GMT.
Manned three crew. Unsuccessful mission. Failed to rendezvous with Salyut 7. Recovered April 22, 1983 13:29 GMT. Landed 113 km SE Arkalyk.
Manned two crew. Docked with Salyut 7. Transported to the Salyut-7 orbital station a crew consisting of V A Lyakhov, commander of the spacecraft, and A P Aleksandrov, flight engineer, to conduct scientific and technical research and experiments. Recovered November 23, 1983 19:58 GMT.
Began installation of auxiliary solar array.
Completed installation of auxiliary solar array.
Transported to the Mir orbital station a Soviet/Bulgarian crew comprising cosmonauts A Y Solovyev, V P Savinykh and A P Aleksandrov (Bulgaria) to conduct joint research and experiments with cosmonauts V G Titov and M K Manarov. Interim orbit 343 x 282 km. Maneuvered to Mir's 355 x 349 km orbit. Docked 15:57 GMT 9 June to Mir's aft port. Moved to forward port 18 June. Undocked 22:55 GMT 5 September. Jettisoned Orbital Module 23:35 GMT 5 September. Planned landing 02:15 September 6 1988 failed due to confusion of infrared horizon sensors. Repeat retrofire attempt one orbit later resulted in a partial burn only. The crew had to spend a tense 24 hours in the cramped Descent Module (the Orbital Module having already been jettisoned before the retrofire burn) before making last chance deorbit. Finally Lyakhov and Afghani cosmonaut Mohmand (Soyuz TM-6) returned safely to Earth and landed September 7, 1988 00:50 GMT, 160 km SE Dzhezkazgan.
Transported to the Mir orbital station a Soviet-Afghan crew comprising the cosmonauts V A Lyakhov, V V Polyakov and A A Momand (Afghanistan) to conduct joint research and experiments with the cosmonauts V G Titov and M K Manarov. Returned Manarov, Titov (Soyuz TM-4), Chretien (Soyuz TM-7) to Earth. Initial orbit 195 X 228 km at 51. 57 deg. Maneuvered to a 235 x 259 km orbit, then docked with Mir at 05:41 GMT on 31 August at its 339 x 366 km orbit. Moved from aft to forward port 8 Sept 88. Undocked 03:33 GMT 21 December 1989. Revised software installed as a result of TM-5 abort overloaded computer. Landing planned for 06:48 aborted. Backup program used. Orbital Module retained through retrofire. Recovered December 21, 1988 09:57 GMT. Landed 180 km SE Dzhezkazgan.