FAILED: ALOS-3 - H3 TF-1 (H3-22S) - Tanegashima LC-Y2 - 7 March 2023 (01:37 UTC)

[Fuji]

Latest launch failure report on August 23, 2023.
https://www.mext.go.jp/kaigisiryo/content/20230823-mxt_uchukai01-000031454_1.pdf


The remaining failure scenarios have been organized into three.
(1) Minor short circuit inside the exciter, total short circuit after SEIG : Common Scenarios No.8,9,10,15,16
(2) Overcurrent condition occurs when energizing the exciter : Common Scenario No.18
(3) Overcurrent inside PSC2 A system and then propagation to B system

Based on this, measures will be taken against exciter and PSC2 to prevent recurrence.

What's next?
⚫ Measures will be reflected in the design of the H3 rocket. Before the resumption of launch, system-level verification tests Confirm the adequacy of countermeasures.
⚫ Based on the results of the investigation of the cause, we will proceed with the analysis of the factors behind the cause and organize the horizontal development.
• As part of this, design changes to improve the reliability of the H3 rocket will be considered.

[FutureSpaceTourist]

https://twitter.com/jeff_foust/status/1701259891254387002

Iwao Igarashi of MHI says the failure investigation into the first H3 launch was completed last month, and the company hopes to perform a second flight before the end of the year. #WSBW

Can’t be too much work to do then.

[russianhalo117]

NHK WORLD-JAPAN
The H3 arocket: Flight after Failure - Documentary 360