« Reply #3287 on: June 03, 2024, 06:25:47 AM »
Targeting June 5th for Starliner's launch
Scrub was due to a faulty ground power unit
Chris Bergin - NSF
@NASASpaceflight
NASA release:
NASA, Mission Partners Target June 5 Crew Flight Test Launch
"NASA’s Boeing Crew Flight Test mission teams are preparing to support a launch at 10:52 a.m. EDT Wednesday, June 5, from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida on a mission of about a week to the International Space Station.
Technicians and engineers with ULA (United Launch Alliance) worked overnight and on Sunday to assess the ground support equipment at the launch pad that encountered issues during the countdown and scrubbed the June 1 launch attempt. The ULA team identified an issue with a single ground power supply within one of the three redundant chassis that provides power to a subset of computer cards controlling various system functions, including the card responsible for the stable replenishment topping valves for the Centaur upper stage. All three of these 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 removed, visually inspected, and replaced with a spare chassis. No signs of physical damage were observed. A full failure analysis of the power unit will be performed to better understand root cause. Meanwhile, ULA has completed functional checkouts of the new chassis and the cards, and all hardware is performing normally."
https://x.com/NASASpaceflight/status/1797407699254002055
« Last Edit: June 03, 2024, 09:13:22 AM by WLJ »
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