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Les enquêtes techniques

GNV english summary

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publié le 20 avril 2010

On 1 and 7 August 2005, two buses fuelled by natural gas were destroyed or seriously damaged by fires at Montbeliard and Nancy.
Following these events, the Ministers responsible for transport and industry asked the BEA-TT to hold a technical investigation into the safety of NGV buses.

Apart from the origin and circumstances of the two fires (engine fires caused by an electrical short circuit and a breakdown in the turbocompressor), it was discovered during the investigation that other fires or fire outbreaks had occurred in the same equipment in France and abroad. Hence it was possible to draw prevention lessons which are included in this report in the form of three sets of recommendations issued in relation to different generations of the buses in question, aimed at remedying the main problems observed.