On the highway in Las Vegas, several manhole covers were welded shut.
The second practice for the Las Vegas Grand Prix was twice stopped with red flags because of a manhole cover before turn seventeen that shifted when cars ran over it. Measures were taken at the circuit to prevent the problem from recurring in the remaining sessions of the race weekend.
The FIA issued a statement saying the problematic manhole cover had been welded. Inspection of other covers also revealed issues with some of them, and they were welded as well.
“The manhole cover that caused the red flags in second practice was dismantled and further inspected,” the FIA said. “A specific fault in the locking mechanism was found and was rectified overnight.
In addition to the work carried out to fix the identified problem, the cover of this manhole was welded to reduce the risk of it opening.
Overnight, all other manhole covers on and near the circuit were rechecked. Additional welding was carried out on a further 14 manhole assemblies.”
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On the highway in Las Vegas, several manhole covers were welded shut.
The second practice for the Las Vegas Grand Prix was twice interrupted by red flags because of a manhole cover before turn 17 that shifted when cars drove over it. The FIA published a statement saying the problematic manhole cover had been welded.