Crew member Svetlana Savitskaya was the first woman in space in almost twenty years, since Valentina Tereshkova who flew in 1963 on Vostok 6.

Savitskaya was given the orbital module of Soyuz T-7 for privacy.

On August 21 the five cosmonauts traded seat liners between the Soyuz Ts.

The crew exchanged Soyuz vehicles with the resident crew, returning home in the older Soyuz T-5, leaving the fresher Soyuz T-7 available to the resident crew as a return vehicle.

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