At last week’s Bahrain Grand Prix, Kimi Raikkonen pitted for his first stop and was given the green light to leave.
But Raikkonen’s left rear tyre had yet to be changed and as he drove away mechanic Francesco Cigarini was badly hurt suffering a fracture of the tibia and fibula in his left leg.
With the Chinese Grand Prix this weekend, Ferrari have had to move quickly to fix the faults within their system.
And Arrivabene says the problem occurred due to their electronic device.
“We had an internal, accurate investigation because we were hurt about what happened,” Arrivabene told Sky Sports F1.
“We have a procedure to ensure that the pit stops during the race are done in the safest environment.
“In this case, we have three factors. One involves human control, the other involves mechanical, and the other involves electronic device.
“What happened there, we had a mishandling and the rear left was not perfectly read by the electronic device, which then gives the green light.
“We went through all the procedure together with FIA to make sure this kind of thing doesn’t happen again.
“It’s in our interest, because we care about our people before anything else.”