"NASA's BoeingSpace Crew Flight Test mission teams are preparing to support launch on June 5 at 10:52 a.m. ET," NASA said in a post on X.com.
A second attempt at the mission on 1 June failed at the last minute.
NASA said it was cleared as United Launch Alliance (ULA) mission officials "identified an issue with the single ground power supply that caused problems during the countdown."
The ULA team found a power supply inside one of three redundant chassis that provides power to a subset of computer cards that control various system functions.
They also identified the card responsible for the static replenishment topping valves for the Centaur upper stage. These three chassis are required to enter the terminal phase of the launch countdown to ensure crew safety.
"On Sunday, the chassis containing the faulty ground power unit was replaced, and ULA confirmed that all hardware is functioning normally," NASA said.
The company is continuously facing many setbacks.
The first manned mission, scheduled to launch on May 7, was scrubbed two hours before liftoff due to a valve problem on the upper stage of ULA's Atlas V rocket. After cleanup, the launch was pushed to 10 May and later to 21 May and then to 25 May due to a helium leak.
Meanwhile, the company also has a "backup launch opportunity on June 6."
The spacecraft will carry NASA astronauts Butch Wilmore and Indian-origin Sunita Williams to the space station for about a week before returning to Earth aboard a reusable crew capsule.
The goal of the Starliner mission is to carry astronauts and cargo to low Earth orbit and beyond for future NASA missions.
A second attempt at the mission on 1 June failed at the last minute.
NASA said it was cleared as United Launch Alliance (ULA) mission officials "identified an issue with the single ground power supply that caused problems during the countdown."
The ULA team found a power supply inside one of three redundant chassis that provides power to a subset of computer cards that control various system functions.
They also identified the card responsible for the static replenishment topping valves for the Centaur upper stage. These three chassis are required to enter the terminal phase of the launch countdown to ensure crew safety.
"On Sunday, the chassis containing the faulty ground power unit was replaced, and ULA confirmed that all hardware is functioning normally," NASA said.
The company is continuously facing many setbacks.
The first manned mission, scheduled to launch on May 7, was scrubbed two hours before liftoff due to a valve problem on the upper stage of ULA's Atlas V rocket. After cleanup, the launch was pushed to 10 May and later to 21 May and then to 25 May due to a helium leak.
Meanwhile, the company also has a "backup launch opportunity on June 6."
The spacecraft will carry NASA astronauts Butch Wilmore and Indian-origin Sunita Williams to the space station for about a week before returning to Earth aboard a reusable crew capsule.
The goal of the Starliner mission is to carry astronauts and cargo to low Earth orbit and beyond for future NASA missions.
