Suppose that a micrometeorite or a sudden failure renders one of the Soyuz inoperable, or that a routine inspection discovers a defect in one of them that makes it unsafe.

What is the protocol to follow in this case? I assume that the ISS is not under any threat and does not need immediate evacuation.


1 Answer 1


The crew of the nonfunctional spacecraft would have to wait

without an escape capability until a Soyuz replacement or a Shuttle arrives (either of which could take days to months depending on timing).

(Nowadays read Crew Dragon for Shuttle)

Final Report of the ISS Independent Safety Task Force p.52

  • 1
    $\begingroup$ This would be a huge advertisement for SpaceX, if the crew had a week to evacuate from a problem during this time, and SpaceX was able to send a craft up there much faster than government agencies. $\endgroup$ Apr 16, 2021 at 14:14
  • 1
    $\begingroup$ @Panzercrisis it would be interesting to know how fast they could turn one around. $\endgroup$ Apr 16, 2021 at 14:18
  • 3
    $\begingroup$ @DarrelHoffman they plan the supplies so that any one supply ship can be missed without causing a huge problem. $\endgroup$ Apr 16, 2021 at 15:56
  • 2
    $\begingroup$ @Panzercrisis don't put bad ideas in Elon's head, he has an abundance of those already $\endgroup$
    – llama
    Apr 16, 2021 at 17:14
  • 3
    $\begingroup$ @llama So it's Elon drilling holes in Soyuz after all $\endgroup$
    – OON
    Apr 16, 2021 at 19:10

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.