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The gasket that was causing the leak has been replaced before the last Artemis 1 launch attempt

engineers NASA Discovered it shortly before the last attempt to launch itArtemis 1 On September 3, a The leak that caused the flight to be canceled has now been fixed. The US space agency said in an update that technicians were able to Replace the defective seal on Friday 9th September.

During the repair work, NASA aimed to seal the hydrogen leak in a latitude of about 20 centimeters. It was this leak that forced the agency to cancel the launch 40 minutes before starting the engines 3 sept.

NASA Loans / Chad Swick

during the gasket replacementEngineers took the opportunity, too Replace another joint on a smaller line of about 10 cmwhich caused a leak during the first launch attempt on August 29.

place for testing

With all defective seals replaced, NASA is currently preparing Perform fuel supply tests. According to the information provided by the agency, this could happen in September 17th. It will be about filling the 98-meter rocket with more than 2.7 million liters of hydrogen and liquid oxygen.

According to the update released by NASA, this demo will allow engineers to inspect the new seals under extremely cold or low temperature conditions. These terms are consistent with the launch terms.

Conditions to be met

On September 8, it was announced that NASA would do so Try again to launch the Artemis 1 mission on September 23, or September 27. But these chances will depend on the repair status of the detected leaks.

If the next test passes, the engineers can move on to another type of test. it will be Check whether the cooling of the four motors At a temperature of – 251 ° C it works properly. This process is necessary to prepare the engines to receive cooled fuel. During the first two launch attempts, NASA was unable to perform this test.

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Aside from the technical aspect, we know that the US space agency must ensure that too Obtaining a waiver from the US Space Force Regarding Self-destruct system. This will allow not to have to return the missile to the hangar to test the system, which will ensure that the missile is destroyed in the event of deviation from its course.

source: Space.com