Officials had expressed concern about a persistent helium leak discovered months ago in the Soyuz 7 capsule while it was docked to the station.
Helium is used to pressurize the Soyuz craft's fuel tanks prior to its return to Earth. It prompted discussions between NASA and the Russian space agency, but administrators agreed it posed no risk to either the spacecraft or the crew
Didn't they say that about Challenger AND Columbia? Anytime "Administrators" say "it poses no risk" be afraid be very very afraid!