As leak rates rose, Russian officials informed NASA on Thursday, June 4, of plans to attempt physical repairs to the new leaks with a drill and a “drill stop” device to prevent drilling all the way through the module’s structure. NASA officials were deeply concerned about this because Roscosmos had not shown them an analysis of the problem or explained why their procedures to address the leaks would work.
“We threatened we would put astronauts in suits, in Dragon, to send a message to world that we disagreed,” one NASA official told Ars. “They didn’t care.”
The standoff continued into Friday morning, when Russian astronauts appeared to back off their plans, only to subsequently approach the PrK module with a saw and the intent to remove a load-bearing bracket. Meanwhile, Roscosmos officials continued to ignore communication with NASA officials on the ground.
“We felt there was a very high probability of a bad outcome happening if they sawed that bracket off,” a NASA source said. NASA’s decision to send its astronauts into a safe haven prompted Roscosmos to finally back off.
In the days since, there has been some additional back-and-forth, but Russia has now told NASA it will decommission the PrK module.
So we will now see the Progresses dock twice to the ISS: once to Zvezda just to top up the prop there, and another somewhere else for the internal transfers, likely in the opposite order.
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