Rollover of a CGH2 tube trailer

A truck loaded with hydrogen came off the road on, crashed into a guardrail and overturned on the embankment.
The driver was taken to hospital with minor injuries. No other cars were involved in the accident.
The tanks were almost empty, with only a residual non-quantified amount of hydrogen.
A specialised company was called for the removal of the trailer.

INITIATING CAUSE was a traffic accident.
The policy could not determine the cause of loss of control of the trailer. Therefore , in absence of information on driver, the ROOT CAUSE is attributed generically to a human error (wrong manoeuvre).

trailer

The driver was light injured by the crash.
The damage was estimated several 100 000 Euros.

The traffic was diverted and the road remained completely closed until further notice.
A specialist company took care of recovering the hazardous goods.

The rollover did not caused hydrogen release. This speak for a sound design of the compressed hydrogen storage system. From the photos does not result any evidence of damage to the tubes. A much more sever test would have been a crash affecting the rear of the tubes.
It is unclear if the statement regarding no leak is based on measurement or on visual inspection of the pressure control system.