Sources: Air leak aboard #ISS requires extra air supplies, imposes limitations on the use of Zvezda's aft port by visiting vehicles. New plan to combat the leak is in the works.
Details/visual: https://t.co/KZE3WlnXSu pic.twitter.com/YwrFMvuxJ4

— Anatoly Zak (@RussianSpaceWeb) August 18, 2021