Cosmonauts:
    Vasili G. Lazarev [1], Commander
    Oleg G. Makarov [2], Flight Engineer
Backup:
    Georgi Grechko
    Alesksei Gubarev
Launch:
    Date: 27 September 1973
    Time: 12:18 UTC
Landing:
    Date: 29 September 1973
    Time: 11:34 UTC
Duration: 1 day, 23 hours, 16 minutes
Call Sign: Ural (Urals)

This was a test flight of a new Ferry version of the Soyuz. It was probably intended for Salyut 2, but the station failed to stabilize and broke up.