Cosmonauts:
    Vladimir A. Shatalov [3], Commander
    Aleksei S. Yeliseyev [3], Flight Engineer
    Nikolai N. Rukavishnikov [1], Research Engineer
Backup:
    Aleksei Leonov
    Valeri Kubasov
    Pyotr Kolodin
Launch:
    Date: 22 April 1971
    Time: 23:54 UTC
Landing:
    Date: 24 April 1971
    Time: 23:40 UTC
Duration: 1 day, 23 hours, 46 minutes
Call Sign: Granit (Granite)

This was to be the first mission to Salyut 1. It docked with the space station, but there was a problem with the mechanism and the cosmonauts were unable to enter the station.

Upon re-entry, the capsule became filled with toxic fumes, causing Rukavishnikov to pass out.