On a related topic, ATSB last week released the findings of its investigation into the fire aboard the prototype Japanese liquified hydrogen carrier ship that visited the Port of Hastings in VIC last year for its first test run:
https://www.bairdmaritime.com/ship-world/tanker-world/gas-tanker-world/australian-transport-safety-bureau-publishes-report-on-fire-incident-on-japanese-hydrogen-carrier/
“...incorrect solenoid valve being fitted ...gas combustion unit was not equipped to detect the failure of the valve, nor the subsequent closing of the damper.”
