Marussia have denied problems with their car being responsible for Maria de Villota's crash in which she lost her right eye.
The Formula 1 team has conducted internal investigations into the cause of the accident and although no reason has yet been identified, they have insisted that it was not car failure.
Team principal John Booth said: "We are satisfied that the findings of our internal investigation exclude the car as a factor in the accident. We have shared and discussed our findings with the HSE for their consideration as part of their ongoing investigation.
"We have now concluded our investigatory work and can again focus on the priority, which continues to be Maria's wellbeing. In that regard, we continue to support Maria and the De Villota family in any way we can."
De Villota is progressing well in her recovery.
