NASA, Boeing, and ULA (United Launch Alliance) groups proceed working remaining open duties in preparation for the company’s Boeing Crew Flight Check to the Worldwide House Station. The groups now are focusing on a launch date of no sooner than 4:43 p.m. EDT on Tuesday, Could 21, to finish further testing.
On Could 11, the ULA crew efficiently changed a strain regulation valve on the liquid oxygen tank on the Atlas V rocket’s Centaur higher stage. The crew additionally carried out re-pressurization and system purges, and examined the brand new valve, which carried out usually.
Starliner groups are working to resolve a small helium leak detected within the spacecraft’s service module traced to a flange on a single response management system thruster. Helium is utilized in spacecraft thruster techniques to permit the thrusters to fireplace and isn’t flamable or poisonous.
NASA and Boeing are creating spacecraft testing and operational options to handle the difficulty. As part of the testing, Boeing will deliver the propulsion system as much as flight pressurization simply because it does previous to launch, after which enable the helium system to vent naturally to validate present information and strengthen flight rationale. Mission groups additionally accomplished an intensive evaluation of the info from the Could 6 launch try and are usually not monitoring every other points.
The Atlas V and Starliner stay within the Vertical Integration Facility at House Launch Advanced-41 on Cape Canaveral House Pressure Station in Florida.
NASA astronauts Butch Wilmore and Suni Williams, nonetheless in preflight quarantine, returned to Houston on Could 10 to spend further time with their households as prelaunch operations progress. The duo will fly again to NASA’s Kennedy House Heart in Florida within the coming days.
Wilmore and Williams are the primary to launch aboard Boeing’s Starliner to the house station as a part of the company’s Industrial Crew Program. The astronauts will spend a couple of week on the orbiting laboratory earlier than returning to Earth and making a parachute and airbag-assisted touchdown within the southwestern United States.
After profitable completion of the mission, NASA will start the ultimate means of certifying Starliner and its techniques for crewed rotation missions to the house station.
