(Washington) Two new helium leaks, in addition to a previously known one, were detected in flight on the spacecraft Starliner of Boeing, which is carrying two NASA astronauts and is scheduled to dock with the International Space Station on Thursday.
The spacecraft “remains stable,” NASA said overnight from Wednesday to Thursday.
“Currently,” these leaks do not represent “a danger to the safety of the crew and the vessel, or to the mission,” said Jim May, a Boeing manager.
In all, Starliner now has three helium leaks. One of them had been identified before the takeoff of this mission awaited for years, which took place on Wednesday from Florida.
It was decided not to repair this first helium leak located on one of the ship’s thrusters, because after analysis NASA had described it as “small” and considered that it did not represent a danger.
Helium is not a flammable gas, but it is used in the ship’s propulsion system.
The other two leaks are “new since the spacecraft arrived in orbit,” NASA said on X. “Two of the affected helium valves have been closed. »
Thursday morning, NASA said that mission leaders had met and given the green light for the spacecraft to dock with the International Space Station (ISS), still scheduled for 12:15 p.m. (Eastern time). ).
“They checked the condition of the vehicle and continue to monitor” the flow of leaks, added the American space agency.
A press conference is also planned after the ship docks with the ISS.
Manual piloting
Boeing must demonstrate during this test flight that Starliner is safe to begin regular operations. The empty spaceship has already reached the ISS once in 2022, but this is the first time it has carried astronauts.
Butch Wilmore, 61, and Suni Williams, 58, have each been to the ISS twice in the past and have been training for several years for this mission.
A few hours after takeoff, they temporarily piloted the spacecraft manually to test its proper functioning.
“The accuracy is truly incredible,” said Butch Wilmore, in a recording relayed by Boeing before the announcement of the two additional leaks. “Even more than in the simulator. »
“The first six hours were absolutely fascinating and beyond our expectations,” he added. “It’s just an amazing ship. »
The development program of Starliner was marred by multiple disappointments leading to years of delay.
Boeing was thus beaten by SpaceX, which has already been transporting astronauts to the ISS since 2020.
But NASA wants to have a second means of transport in order to better be able to deal with possible problems on one of the capsules or an emergency situation.