KENNEDY SPACE CENTER, Fla. (NASA PR) — Following extensive testing and analysis of oxidizer isolation valves on Boeing’s CST-100 Starliner service module propulsion system, Boeing has decided to move up service modules currently in production for its upcoming uncrewed and crewed flight tests to the International Space Station as part of NASA’s Commercial Crew Program.
KENNEDY SPACE CENTER, Fla. (Boeing PR) — The NASA, Boeing team continues to make progress on the investigation of the oxidizer isolation valve issue on the Starliner service module propulsion system that was discovered ahead of the planned uncrewed Orbital Flight Test-2 (OFT-2) mission to the International Space Station in August.
CAPE CANAVERAL SPACE FORCE STATION, Fla. (Boeing PR) — Today, Boeing informed NASA that the company will destack its CST-100 Starliner from the Atlas V rocket and return the spacecraft to the Commercial Crew and Cargo Processing Facility (C3PF) for deeper-level troubleshooting of four propulsion system valves that remain closed after last Tuesday’s scrubbed launch.
Starliner has sat atop the Atlas V rocket in ULA’s Vertical Integration Facility since August 4, where Boeing teams have worked to restore functionality to the affected valves.
The relocation of the spacecraft to the C3PF will require Boeing, NASA and United Launch Alliance to agree on a new launch date once the valve issue is resolved.
“Mission success in human spaceflight depends on thousands of factors coming together at the right time,” said John Vollmer, vice president and program manager, Boeing’s Commercial Crew Program. “We’ll continue to work the issue from the Starliner factory and have decided to stand down for this launch window to make way for other national priority missions.”
CAPE CANAVERAL SPACE FORCE STATION, Fla. (Boeing PR) — This weekend, Boeing engineers will continue testing and evaluating the CST-100 Starliner spacecraft inside the Vertical Integration Facility (VIF) at Space Launch Complex-41.
Yesterday, teams powered up the spacecraft to receive data and send commands to the propulsion system valves that unexpectedly indicated “closed” positions early in the launch countdown on Tuesday. The transmitted commands successfully opened some of the valves, giving the team new data to assess while also beginning physical inspections.
“Cautiously optimistic is a good way to describe how the team is feeling,” said John Vollmer, Starliner vice president and program manager. “They’re coming forward with innovative ideas and prioritizing the safety of the spacecraft and their teammates.”
Boeing aims to perform all activities at the VIF before returning to the launch pad for flight. If necessary, the spacecraft could return to the Commercial Crew and Cargo Processing Facility at Kennedy Space Center for further troubleshooting and inspections and possibly return to the pad for launch this month.
Boeing is assessing multiple launch opportunities for Starliner in August and will work with NASA and United Launch Alliance to confirm those dates when the team is ready to proceed with the Orbital Flight Test-2 mission.
Updates will be provided by NASA and Boeing as information is available.
CAPE CANAVERAL SPACE FORCE STATION, Fla. (Boeing PR) — During pre-launch preparations for the uncrewed test flight of the CST-100 Starliner spacecraft, Boeing engineers monitoring the health and status of the vehicle detected unexpected valve position indications in the propulsion system. The issue was initially detected during check outs following yesterday’s electrical storms in the region of Kennedy Space Center.
Consequently, the launch of the Starliner spacecraft to the International Space Station atop a United Launch Alliance Atlas V rocket will be postponed. The launch was scheduled for 1:20 p.m. ET on Tuesday, Aug. 3. Boeing and NASA teams are assessing the situation. The team will provide updates regarding a launch attempt on Wednesday, Aug. 4.
“We’re disappointed with today’s outcome and the need to reschedule our Starliner launch,” said John Vollmer, vice president and program manager, Boeing’s Commercial Crew Program. “Human spaceflight is a complex, precise and unforgiving endeavor, and Boeing and NASA teams will take the time they need to ensure the safety and integrity of the spacecraft and the achievement of our mission objectives.”
Updates will be provided by NASA and Boeing as information is analyzed and confirmed.
HOUSTON (BOEING PR) — Boeing continues to support NASA as it reviews flight readiness products and we prepare the CST-100 Starliner spacecraft ahead of the Orbital Flight Test-2 (OFT-2) uncrewed mission to and from the International Space Station.
“We appreciate the significant work NASA is undertaking ahead of launch,” said John Vollmer, Starliner’s vice president and program manager at Boeing. “We’re fully engaged in the agency’s review process to ensure confidence in the spacecraft.”
With formal software tests completed, Boeing is continuing with flight preparations. We are ready to conduct a mission rehearsal, using flight hardware and final flight software, to ensure the readiness of the team and combined systems.
Hardware processing is also concluding. We recently moved the spacecraft into the Hazardous Processing Area in anticipation of propellant load. We continue to address final observations and have successfully replaced avionics units affected by a power surge during final checkouts. We continue to ensure product safety of our spacecraft and we are addressing any emerging issues in a timely manner.
NASA and Boeing teams in Houston are now contending with widespread power outages and other winter storm-related impacts in the region. Despite this, the team remains focused on the safety and quality of the spacecraft and a successful launch no earlier than April 2.