A damaged seal on Michael Schumacher's fuel rig was to blame for a pitstop fire at last weekend's Austrian Formula One Grand Prix, Ferrari said today.
The team said a small amount of fuel had remained in the breather hose of the fuel rig after it was used to supply Brazilian team mate Rubens Barrichello's car on lap 21.
The same rig was then used to refuel world champion Schumacher when he came in for his first stop two laps later.
Formula One's governing body has said it would also investigate the incident while Ferrari promised a step-by-step review of the problem.