Event
- Event ID
- 1151
- Quality
- Description
A liquid hydrogen trailer-tractor was travelling on a highway. Because of the snow and the ice underneath, the tractor slid off the road to the right and overturn.
The police and fire department arrived on the scene. There was no package failure or release.
The emergency response team of the transport company was assigned to oversee the up-righting of the tractor and trailer. The tractor and trailer were both towed to a safe location.- Event Initiating system
- Classification of the physical effects
- No Hydrogen Release
- Nature of the consequences
- Macro-region
- North America
- Country
- United States
- Date
- Component involved
- LH2 tank (road tanker)
- Failure mode
- damage, no release
- Initiating cause
- impact, rollover, crash
- Root CAUSE analysis
The INITIATING and ROOT CAUSES were the loss of control of the vehicles by the driver, caused by ice an snow on the road.
- Root causes
- Date entry in HIAD
- 25/10/2024
Facility
- Application
- Hydrogen transport and distribution
- Sub-application
- LH2 tanker
- Hydrogen supply chain stage
- All components affected
trailer
- Process temperature range [C]
- cryogenic temperature (below -50°C)
- Process pressure range [MPa]
- low to medium pressure (below 2 MPa)
- Location type
- Open
- Location
- highway or similar
- Operational condition
- Pre-event occurrences
There was ice and snow on the road.
- Description of the facility/unit/process/substances
DESCRIPTION OF THE UNIT
Regarding CAPACITY, the PHMSA report provides contradictory data:
Liquid pound capacity = 9640 ponds = 4379 kg
Liquid gallon 1207 = 324 kg
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 0
- Property loss (onsite)
- 0
- Post-event summary
There was no package failure or release.
Lesson Learnt
- Lesson Learnt
All safeguards worked as expected. The impact did not cause any damage to the pressure control system and there was no hydrogen release. This event confirms the exceptional safety records of this type of transport.
- Corrective Measures
This incident was reviewed with all drivers during a safety training . In the event of severe weather drivers were instructed to safely pull over and to contact their supervisor.
In-depth data
- Release type
- no release
- Released amount (kg)
- 0
- Probable IGNITION SOURCE
References
- Sources categories
- PHMSA
- Reference & weblink
Incident I-2023030050 of the US Pipeline and Hazardous Materials Safety Administration PHMSA:
https://portal.phmsa.dot.gov/analytics/saw.dll?Portalpages&PortalPath=%…
(accessed September 2024)
