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.
KENNEDY SPACE CENTER, Fla. (NASA PR) — Teams from Boeing and United Launch Alliance (ULA) safely returned the CST-100 Starliner to its production facility in Florida on Aug. 19 for continued work on the spacecraft’s service module propulsion system.
The Starliner Orbital Flight Test-2 spacecraft was removed from its Atlas V rocket inside the Vertical Integration Facility at Space Launch Complex-41 on Cape Canaveral Space Force Station in Florida and returned to the Commercial Crew and Cargo Processing Facility on NASA’s Kennedy Space Center.
The team now will perform propulsion system checkouts inside the factory’s hazardous processing area and determine the appropriate vehicle configuration for accessing and analyzing the system further. NASA and Boeing will recommend forward work as part of a formal process designed to aid in determining root cause and remediation steps.
In the weeks ahead, engineering teams from NASA and Boeing will work to diagnose and ultimately resolve a valve issue detected during the Aug. 3 countdown for NASA’s Boeing Orbital Flight Test-2, and resulted in the decision to postpone the launch destined for the International Space Station.
NASA, Boeing, and ULA will establish a new launch date once the issue is resolved.
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. (NASA PR) — NASA and Boeing continued work over the weekend and Monday morning on the company’s CST-100 Starliner spacecraft service module propulsion system in preparation for the Orbital Flight Test-2 mission to the International Space Station.
Work progressed to restore functionality to several valves in the Starliner propulsion system that did not open as designed during the launch countdown for the Aug. 3 launch attempt. The valves connect to thrusters that enable abort and in-orbit maneuvering.
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.
It could take between several weeks and two months for Boeing to work through the valve problems that resulted in the launch scrub of the Starliner spacecraft on Tuesday, a source tells Parabolic Arc. The vehicle will be launched from Florida on an uncrewed flight test to the International Space Station (ISS).
The launch was scrubbed after engineers received what Boeing said “unexpected valve position indications in the propulsion system” of the spacecraft. The signals came from more than half of the 24 propulsion valves in Starliner’s service module, according to the source, who insisted upon anonymity due to not being authorized to speak to media.
CAPE CANAVERAL SPACE FORCE STATION, Fla. (NASA PR) — NASA and Boeing are standing down from the Wednesday, Aug. 4, launch attempt of the agency’s Orbital Flight Test-2 to the International Space Station as mission teams continue to examine the cause of the unexpected valve position indications on the CST-100 Starliner propulsion system.
Early in the launch countdown for the Aug. 3 attempt, mission teams detected indications that not all valves were in the proper configuration needed for launch. Mission teams decided to halt the countdown to further analyze the issue.
NASA and Boeing worked through several steps to troubleshoot the incorrect valve indications, including cycling the service module propulsion system valves, within the current configuration of the Starliner and United Launch Alliance Atlas V rocket at Space Launch Complex-41 on Cape Canaveral Space Force Station in Florida.
Mission teams have decided to roll the Atlas V and Starliner back to the Vertical Integration Facility (VIF) for further inspection and testing where access to the spacecraft is available. Boeing will power down the Starliner spacecraft this evening. The move to the VIF is expected to take place as early as tomorrow.
Engineering teams have ruled out a number of potential causes, including software, but additional time is needed to complete the assessment.
NASA and Boeing will take whatever time is necessary to ensure Starliner is ready for its important uncrewed flight test to the space station and will look for the next available opportunity after resolution of the issue.
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.
CAPE CANAVERAL SPACE FORCE STATION, Fla. (NASA PR) — NASA will provide coverage of the upcoming prelaunch, launch, and docking activities for the agency’s Boeing Orbital Flight Test-2 (OFT-2) mission to the International Space Station. OFT-2 is the second uncrewed flight for Boeing’s CST-100 Starliner spacecraft as part of the agency’s Commercial Crew Program. The mission is targeted to launch at 1:20 p.m. EDT Tuesday, Aug. 3
CAPE CANAVERAL SPACE FORCE STATION, Fla. (NASA PR) — NASA, Boeing and United Launch Alliance now are targeting 1:20 p.m. EDT Tuesday, Aug. 3, for launch of the Orbital Flight Test-2 (OFT-2) with the International Space Station ready for the arrival of the Starliner spacecraft. NASA’s live launch coverage begins at 12:30 p.m. Docking is targeted for 1:37 p.m. Wednesday, Aug. 4.
OFT-2, Boeing’s second uncrewed flight, is designed to test the end-to-end capabilities of the new system for NASA’s Commercial Crew Program.
HOUSTON (NASA PR) — NASA and Boeing have decided to stand down from Friday’s launch attempt of the agency’s Orbital Flight Test-2 mission. Currently, launch teams are assessing the next available opportunity. The move allows the International Space Station team time to continue working checkouts of the newly arrived Roscosmos’ Nauka module and to ensure the station will be ready for Starliner’s arrival.
Russia’s new Nauka module started firing its thrusters randomly after it docked with the International Space Station (ISS) on Thursday as the crew on board struggled to shut the system down manually, a source familiar with the situation told Parabolic Arc.
“Rosie the Rocketeer,” Boeing’s anthropometric test device, will be strapped into the Starliner for its second Orbital Flight Test — this time to help the spacecraft maintain its center of gravity throughout the various phases of the flight.
CAPE CANAVERAL SPACE FORCE STATION, Fla. (Boeing PR) — The countdown is on for the Boeing CST-100 Starliner second Orbital Flight Test, or OFT-2. Targeted for July 30, the uncrewed flight is scheduled to lift off from Florida’s Cape Canaveral Space Force Station at 2:53 p.m. Eastern time — but the capsule won’t be empty. “Rosie the Rocketeer,” Boeing’s anthropometric test device, will be reclaiming the commander’s seat for the test flight to and from the International Space Station.
Cape Canaveral Space Force Station, Fla., July 27, 2021 (ULA PR) – A United Launch Alliance (ULA) Atlas V rocket is in final preparations to launch Boeing’s CST-100 Starliner spacecraft on the second Orbital Flight Test (OFT-2) to the International Space Station (ISS). The launch is planned for July 30 at 2:53 p.m. EDT from Space Launch Complex-41 at Cape Canaveral Space Force Station. The live launch broadcast begins no earlier than 2 p.m. EDT on July 30 at www.ulalaunch.com.