Ax-4 Mission | Pre-Launch Press Conference https://youtube.com/watch?v=2qdJFP3mLgI
Some highlights: • [9:10] LOX leak found during static fire (previously seen on this booster), a purge is being installed to mitigate. • [9:48] Engine TVC problem, components have been changed out. • [10:32] New Dragon changes: improved processing and storage areas, improved stair latch retention design, changed several propulsion components to improve reliablility. • [11:45] This booster will also be used for the Crew-11 mission this summer. • [17:15] Private Astronaut Mission opportunity in "mid to late 2026", next one in 2027. Axiom are competing for PAM 5 & 6. • [17:50] First element of Axiom Station planning to launch in 2027. • [20:40] SpaceX scheduled to build ~170 second stages in 2025 and 8 new F9s to be manufactured before end of the year. • [22:47] If Ax-4 is delayed there are launch opportunities "all the way through June 30th" with a brief cutout during Progress undock. • [26:07] CRS-33 launch planned for "end of Summer", dependent on Crew-11 and NG-23 now planned for mid September. • [27:05] Japan's 1st HTV-X cargo ship aiming to launch "late fall".
In addition to all the other cool aspects of AX-4, it will be the 500th Completed Mission.
https://www.fly.faa.gov/adv/adv_spt.jsp is showing NET June 12 for launch right now (T-0 would be 11:37 UTC):SPACE X AXIOM 4, KENNEDY SPACE CENTER, FLPRIMARY: 06/12/25 1130Z-1220ZBACKUP: 06/13/25 1100Z-1150Z
111629Z JUN 25HYDROPAC 1515/25(83).SOUTH PACIFIC.DNC 06.1. HAZARDOUS OPERATIONS, SPACE DEBRIS 131206Z TO 131301Z, 141146Z TO 141241Z, 151121Z TO 151216Z, 161101Z TO 161156Z, 171036Z TO 171131Z, 181011Z TO 181106Z, AND 210901Z TO 210956Z JUN IN AREA BOUND BY 28-26.00S 148-11.00W, 27-46.00S 148-45.00W, 43-13.00S 171-10.00W, 43-53.00S 170-28.00W.2. CANCEL HYDROPAC 1440/25.3. CANCEL THIS MSG 211056Z JUN 25.//
SpaceX is standing down from Falcon 9's launch of Axiom Space's Axiom Mission 4 (Ax-4) to the International Space Station from Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center in Florida on Wednesday, June 11, to allow additional time for SpaceX teams to repair the LOx leak identified during post static fire booster inspections. Once complete – and pending Range availability – we will share a new launch date.
120051Z JUN 25NAVAREA IV 614/25(11).WESTERN NORTH ATLANTIC.FLORIDA.1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING 131100Z TO 131150Z JUN, ALTERNATE 141040Z TO 141130Z, 151015Z TO 151105Z, 160955Z TO 161045Z, 170930Z TO 171020Z, 180905Z TO 180955Z AND 210755Z TO 210845Z JUN IN AREA BOUND BY 28-38.97N 080-37.67W, 28-49.00N 080-25.00W, 28-41.00N 080-13.00W, 28-31.00N 080-21.00W, 28-27.77N 080-31.66W.2. CANCEL NAVAREA IV 589/25.3. CANCEL THIS MSG 210945Z JUN 25.
NASA and Axiom Space are postponing the launch of Axiom Mission 4 to the International Space Station. As part of an ongoing investigation, NASA is working with Roscosmos to understand a new pressure signature, after the recent post-repair effort in the aft most segment of the International Space Station’s Zvezda service module.Cosmonauts aboard the space station recently performed inspections of the pressurized module’s interior surfaces, sealed some additional areas of interest, and measured the current leak rate. Following this effort, the segment now is holding pressure. The postponement of Axiom Mission 4 provides additional time for NASA and Roscosmos to evaluate the situation and determine whether any additional troubleshooting is necessary. NASA defers to Roscosmos to answer specific questions about the Zvezda module.A new launch date for the fourth private astronaut mission will be provided once available.
"We appreciate all the incredible work of our customers, NASA, and SpaceX on this Mission. This is the right thing to do for Axiom Space, for NASA, and for our customers. We will continue to work with all of our partners to finalize a new launch date and look forward to flying the Ax-4 Mission soon." -Kam Ghaffarian, Executive Chairman
The launch of Axiom Mission-04 (Ax-04), which includes the launch of India’s first astronaut Shubhanshu Shukla to the International Space Station, has been postponed. Below is a chronological summary of key developments:1. The launch originally targeted on May 29, 2025 was deferred due to observation in electrical harness in Crew Dragon Module, to June 8, 20252. The launch was postponed by one day to June 09, 2025 due to delay in preparedness of the Falcon 9 vehicle for the launch.3. The launch date was further postpone to June 10, 2025, due to unfavourable weather in the ascent corridor.4. Additional observation of oxygen leakage in the engine bay was observed during the preparation for hot fire test conducted on June 08, 2025. Moreover, there was an observation of an anomaly in one of the engine actuator which was replaced along with the controller.5. Anticipating the quick resolution of LOX leak issue, the launch was rescheduled to June 11, 2025.6. During the appraisal of technical issues by Axiom & SpaceX to ISRO delegation on June 10, 2025, ISRO recommended to carry out in-situ repairs or replacement and conduct a low-temperature leak test to validate system performance and integrity, before proceeding with launch clearance.7. On June 11, 2025, NASA informed that they are working with Roscosmos to evaluate a new pressure signature indicating a leak in the aft most segment of the ISS Zvezda Russian service module, after the recent repair attempt. In order to assess the situation and determine the need for further troubleshooting, the launch of Axiom-4 mission is being postponed.The revised launch schedule will be announced by NASA and Axiom after the activities and technical reviews are satisfactorily completed.
ISRO @isro11 minISRO is working closely with @Axiom_Space, @NASA, @SpaceX as they responsibly address the ISS Zvezda module observation causing the Ax‑4 delay. Safety and mission integrity remain our top priorities.With regards Dr. V.Narayanan Secretary DOS/Chairman ISRO & Chairman Space Commission
SpaceX @SpaceX6 minFalcon 9 wet dress rehearsal complete. We’ll continue to work closely with @NASA and @Axiom_Space to determine the best launch opportunity for Dragon and the Ax-4 crew to the @Space_Station
