Rocket and Spacecraft Systems Nearing Flight Readiness
Over the past several days, technicians completed servicing of the SLS solid rocket boosters, including fueling operations involving hydrazine in the booster aft skirts. Additional work inside the Orion spacecraft has focused on stowing flight hardware, conducting pyrotechnic preparations for the launch abort system, and verifying propulsion components.
NASA confirmed that engineers have completed checkouts of the rocket’s four RS 25 engines and pressurized key tanks in Orion’s propulsion system used during fueling. Teams are also continuing environmental control checks to protect sensitive spacecraft systems as colder than normal temperatures move across Florida.
Addressing Issues Ahead of Crewed Mission
As part of final readiness assessments, NASA engineers have addressed several technical issues identified during earlier testing. Adjustments were made to the emergency egress system at the launch pad after evacuation baskets stopped short during a recent evaluation. The braking system has since been modified to ensure full descent during an emergency.
NASA is also conducting additional sampling of Orion’s potable water system after initial tests showed higher than expected organic carbon levels. Officials say further analysis will confirm water quality standards are met before astronauts board the spacecraft.
