The Russian “Star” module cabin of the International Space Station recently had a crack with a length of 2-4 cm. The crew temporarily used polyimide tape to repair it. However, according to NASA’s live broadcast of the International Space Station crew’s calls with the ground, the pressure in the cabin continued to drop after the repair, and the rate of air loss was faster than before the repair.
According to news from the Russian Satellite Network on October 20, a small-scale air leak occurred on the International Space Station in September 2019. Finally, it was found that the transitional cabin was located in the module cabin of the Russian Star. Russian astronaut Ivan Wagner on duty on the space station previously reported to the ground that the crew used temporary tools to solve the problem of air leakage.
Before closing the door on October 19, the pressure in the module compartment was the same as the entire International Space Station, at 733 mmHg. According to astronaut Anatoly Ivanishin’s latest dialogue with the ground, the cabin pressure is 670 mmHg. It has dropped by 63 mm Hg, which exceeds the level (below 50 mm) before the cracks were patched with tape.
Currently, ground professionals are studying how to repair the cracks permanently. According to sources from the Russian Aerospace Group, the leak did not threaten the safety of the crew of the International Space Station, nor did it affect the space station’s manned flight.