Pirelli called to appear before F1's Sporting Committee after tyre failures in British GP

Sky Sports F1 understands Pirelli have been called by the FIA to attend a meeting of the Sporting Committee ahead of next week's German GP at the Nurburgring in wake of the alarming tyre failures that overshadowed Sunday's British GP.

However, Hembery ruled out the production changes Pirelli had made to the tyres for Silverstone as having had any affect on the failures. "However, we can exclude that the new bonding process, which we introduced at this race, is at cause for the tyre failures we have seen today," he added. And when asked by Kravitz if in light of Sunday's incidents Pirelli would be forced to revert to their original plan and change the 2013 rear compounds for safety reasons, Hembery simply replied: "We need to analyse the data and see what has happened." Mercedes driver Lewis Hamilton had been the first driver to suffer the same left-rear failure in Sunday's race, with repeat issues soon following on Felipe Massa and Jean-Eric Vergne's respective cars. The Brackley team's controversial Barcelona test last month had been in part conducted, according to the team's defence in last week's Tribunal hearing, to help Pirelli improve the safety of their tyres and team boss Ross Brawn has declared that F1 now has to "have a serious look" at the ongoing problems. "We will have to look into it," Brawn told Sky Sports F1 after seeing his other driver Nico Rosberg win the race. "I don't want to comment until we get all the facts, but it is something we will have to have a serious look at. "Obviously we are at the centre of it following our Barcelona test, but you can see why we were concerned and wanted to do the work. We will have a proper look at it and see what we need to address." Pirelli statement in full
'There were a number of rear-left tyre failures during the race, which affected Mercedes driver Lewis Hamilton, Felipe Massa (Ferrari), Jean-Eric Vergne (Toro Rosso) and Sergio Perez (McLaren). Pirelli engineers will investigate closely the cause of the failures ahead of next week's German Grand Prix. 'Pirelli's motorsport director Paul Hembery said: "There have obviously been some issues with rear-left tyre failures which we have not seen before. We are taking the situation very seriously and we are currently investigating all tyres to determine the cause as soon as possible, ahead of the next Grand Prix in Germany. At the moment, we can't really say much more until we have fully investigated and analysed all of these incidents, which is our top priority. '"However, we can exclude that the new bonding process, which we introduced at this race, is at cause for the tyre failures we have seen today. There might be some aspect to this circuit that impacts specifically on the latest version of our 2013 specification tyres but at this point we do not want to speculate but will now put together all the evidence to find out what happened and then take appropriate next steps should these be required".'