Event
- Event ID
- 296
- Quality
- Description
A truck loaded with two hydrogen pallets was traveling on a highway, when it was hit by a car turning right. The truck rolled over, and the impact damaged part of the collector pipe, causing the gas to leak and ignite.
The driver immediately put out the fire with a fire extinguisher, so no serious damage occurred.- Event Initiating system
- Classification of the physical effects
- Hydrogen Release and Ignition
- Nature of the consequences
- fire
- Macro-region
- Asia
- Country
- Japan
- Date
- Component involved
- piping (collector)
- Failure mode
- leak & ignition
- Initiating cause
- impact, rollover, crash
- Root CAUSE analysis
The INITIATING and ROOT CAUSE was a road collision (human error).
- Root causes
- Date entry in HIAD
- 30/08/2025
Facility
- Application
- Hydrogen transport and distribution
- Sub-application
- CGH2 cylinders truck
- Hydrogen supply chain stage
- All components affected
connecting pipe (manifold pipe)
- Process temperature range [C]
- ambient temperature (-50°C to +50°C)
- Process pressure range [MPa]
- medium to high pressure (10 to 50 MPa)
- Location type
- Open
- Location
- highway or similar
- Operational condition
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 0
In-depth data
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Release temperature [°C]
- 25
- Probable IGNITION SOURCE
References
- Sources categories
- KHK
- Reference & weblink
High Pressure Gas Accident Cases Database of the KHK (High Pressure Gas Safety Association):
https://www.khk.or.jp/public_information/incident_investigation/hpg_inc…
(accessed May 2025)
