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Clean Hydrogen Partnership

LH2 tanker roll-over

Event

Event ID
65
Quality
Description

A liquid hydrogen tanker went off road and overturned. There was no spillage. All regulatory agencies were notified and the road was closed for an extended period of time.

Event Initiating system
Classification of the physical effects
Unignited Hydrogen Release
Nature of the consequences
leak no ignition
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 CAUSE was that the driver lost the control of the vehicle.
In absence of information on drivers, driver behaviours, and sreoad conditions, the ROOT CAUSE can be attributed generically to a human error (wrong manoeuvre).

Root causes
Date entry in HIAD
31/12/2024

Facility

Application
Hydrogen transport and distribution
Sub-application
LH2 tanker
Hydrogen supply chain stage
All components affected

vent valve

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

Emergency & Consequences

Number of fatalities
0
Number of injured persons
0
Currency
US$
Property loss (onsite)
170.000
Post-event summary

The road was closed for several hours

Lesson Learnt

Lesson Learnt

The fact that the tanker did not lost confinement speaks in favour of a successful safety design.

In-depth data

Release type
no release
Released amount (kg)
0
Probable IGNITION SOURCE

References

Sources categories
PHMSA
Reference & weblink

Event incident I-1990040391 of the PHMSA database (Pipeline and Hazardous Materials Safety Administration, 1996),
https://portal.phmsa.dot.gov/analytics/saw.dll?Portalpages
(accessed September 2024)