Kamui Kobayashi has escaped a penalty following his Turn 1 crash at the start of the Australian Grand Prix.
The Caterham driver clattered into the back of Felipe Massa's Williams on the run to the first corner after locking both front wheels, the damage leaving both cars out of the race on the spot.
The incident was handed over to the FIA stewards for investigation, with a frustrated Massa suggesting Kobayashi should be handed a "hard penalty".
However, team later confirmed that the cause of the accident was a rear brake failure rather than driver error, with the stewards deciding against any penalties for Kobayashi following their investigation.
"The stewards determine that the incident was caused by a serious technical failure completely outside the control of the driver," read the stewards' report.
"The team is directed to work with the FIA technical delegate in determining the cause of the systems failure."
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