Russian ISS module Zvezda is aged and weakening. Bob Zimmerman BehindtheBlack.com

Oct 31, 02:36 AM
Image:  Unoccupied Russian Orlan spacesuits for Russian cosmonauts Oleg Artemyev (blue stripes) and Alexander Skvortsov (red stripes), both Expedition 40 flight engineers, are pictured in the Pirs Docking Compartment of the International Space Station on the eve of the spacewalk of Aug. 18, 2014.

Robert Zimmerman, BehindtheBlack.com; in re: Lacquer on valves gummed up the valves; will swap out engines.  ISS air leak: may be from age (twenty years) of Zvezda. Vostochny official arrested for fraud.  https://behindtheblack.com/behind-the-black/points-of-information/russian-astronaut-crack-on-iss-could-be-from-external-impact/