A Health and Safety Executive (HSE) report has found that poor track maintenance was the cause of the Potters Bar rail crash.
In its third progress report on the incident the HSE concluded the crash happened due to missing track nuts, which caused the points to fail and the train to derail.
Jarvis, the maintenance contractor responsible for the upkeep of the tracks where the crash occurred, had previously insisted that sabotage could not be ruled out.
Jarvis has admitted it faces potential liabilities as a result of the crash and is understood to have insurance cover placed in the London Market.
The company could be exposed by incorrect management procedures or by the negligence of a member of staff.
Last year St Paul International stopped providing consequential loss cover to train operators because of escalating liabilities following the Hatfield train crash.
