This is how NASA announced (18:15) about three hours before the opening of the launch window, it is impossible to solve the problem immediately and a thorough inspection is required without the pressure of before the launch.
This is the second leak and the second postponement after the first launch attempt was postponed on Monday this week due to a leak from the engine. The leak this time is from a fuel pipe and all the attempts made to fix it were unsuccessful, it appeared again
3/9/2022
18:21 NASA announced in the last few minutes the cancellation of the second launch attempt of Artemis 1, as mentioned due to repeated leakage of hydrogen from the fueling pipe. The first postponement on Monday this week was due to a hydrogen leak from one of the engines.
16:45 Israel time, for the past two hours, NASA engineers have been dealing with a hydrogen leak again - this time from one of the refueling pipes. About half an hour ago, NASA announced that the leak had stopped after the valve was moved, but now it is known that the pipe is leaking again. They are now being prepared for repeated tests. The launch which is supposed to take place tonight at 21:17 Israel time is in doubt.
3/9/2022 16:45 PM Israel time, in the last two hours, NASA engineers have been dealing with a hydrogen leak again - this time from one of the refueling pipes. About half an hour ago, NASA announced that the leak had stopped after moving the valve, but now it is known that the pipe is leaking again.
NASA has approved Artemis for launch on Tuesday 3/9 at 21:17 Israel time
The original news (2/9)
Saturday, September 3 at 14:17 PM EST (21:17 PM Israel time), the start of a two-hour launch window, is NASA's target date for the launch of Artemis 1. This is the first combined test of the Orion spacecraft, the SLS rocket and the systems The grounds at NASA's Kennedy Space Center.
Mission managers met Tuesday, Aug. 30, to discuss the data and develop a plan to address problems that arose during the Aug. 29 test flight launch attempt. In this launch attempt, the engineering crews were unable to cool the four RS-25 engines to a temperature of about minus 250 psi. Engine 3 in particular showed higher temperatures than the other engines. The crews also observed a hydrogen leak in the quick disconnect component of the service mast tube. The tail. They overcame the leak by manually adjusting the fuel flow rates.
NASA's SLS rocket with the Orion spacecraft at launch pad B39 as Artemis 1 launch crews load more than 2.6 million liters of cryogenic propellants including liquid hydrogen and liquid oxygen as the countdown progresses. Credit: NASA/Joel Kowsky
In the coming years, crews will adapt and practice propellant loading procedures to follow a procedure similar to what was successfully performed on the first run at NASA's Stennis Space Center in Mississippi. In the updated procedures, the engine cooling test will be performed about 35 to 45 minutes earlier in the countdown. This will be In the liquid hydrogen rapid filling phase of the core phase.
In addition, crews are reconfiguring the B39 launch pad platforms to allow engineers access to the tail service mast pipe quick disconnect. After access is established, technicians will perform assessments and torque connection points where necessary.
US Space Force meteorologists are predicting favorable weather conditions on Saturday. Although showers are expected, they are expected to be sporadic in the launch window.
Mission management met again on Thursday, September 1 to review data and general readiness.
More of the topic in Hayadan:
- Artemis 1: The maiden flight was postponed to Saturday - this is what needs to be done properly
- The Artemis 1 launch was delayed due to a fuel leak from one of the engines
- Israeli development - at the heart of the Artemis 1 mission: mannequins on which the AstroRad vest that protects against radiation will be tested
- The tiny satellite revolution is coming to the moon
- NASA identifies sites on the moon for the next US manned landing
