Event
- Event ID
- 295
- Quality
- Description
- A truck transporting hydrogen and oxygen cylinders collided with a passenger vehicle at an intersection and overturned, causing all cylinders containers to fall onto the road. Gas leaked from four hydrogen containers and one oxygen container and ignited.
No measures to prevent the containers from falling over, such as ropes, had been taken. - Event Initiating system
- Classification of the physical effects
- Hydrogen Release and Ignition
- Nature of the consequences
- Fire (No additional details provided)
- Macro-region
- Asia
- Country
- Japan
- Date
- Main component involved?
- Valve (Generic)
- How was it involved?
- Rupture
- Initiating cause
- Impact, Rollover, Crash
- Root causes
- Root CAUSE analysis
- The INITIATING was a road collision (human error).
The ROOT CAUSE was failing to secure the trailer load with measures able to prevent falling also in accidental conditions.
Facility
- Application
- Hydrogen Transport And Distribution
- Sub-application
- CGH2 cylinders truck
- Hydrogen supply chain stage
- Hydrogen Transport (No additional details provided)
- All components affected
- cylinder Valves
- Location type
- Open
- Operational condition
- Pre-event occurrences
- The truck was transporting compressed hydrogen and oxygen cylinders
Emergency & Consequences
- Number of injured persons
- 0
- Number of fatalities
- 0
- Emergency action
- A large quantity of fire departments responded to the scene, coming from several municipalities in the neighbourhood, summing up to 100 professionals deployed.
The firefighters secured the vehicle involved in the accident and collected leaking operating fluids. The material damage caused by the accident is initially estimated at several tens of thousands of euros.
The train was lifted back onto the track. The single-track railway line remained closed for a long period.
Event Nature
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Presumed ignition source
- Mechanical sparks
References
- Reference & weblink
High Pressure Gas Accident Cases Database of the KHK (High Pressure Gas Safety Association): <br />
https://www.khk.or.jp/public_information/incident_investigation/hpg_inc… />
(accessed May 2025)
JRC assessment
- Sources categories
- KHK
