Esteban Ocon and Kevin Magnussen have been disqualified from the US Grand Prix after they were found to be in breach of rules regarding fuel flow. The two drivers had finished in eighth and ninth place respectively, but have now been stripped of their points.
Both drivers were summoned to the stewards after the race, where it was confirmed that they would be excluded from the official classifications.
Ocon called due to an alleged breach of Article 5.1.4 of the FIA Formula One Technical Regulation’ which states simply states that "fuel mass flow must not exceed 100kg/h."
Magnussen was summoned under Article 30.5 of the FIA Formula One Technical Regulation: "Cars may use no more than 105kg of fuel in each race (with the power unit regulations stipulating that fuel flow must not exceed 100kg/hour). Drivers exceeding the fuel limit during a race will be immediately excluded from the race results."
Force India team principal Otmar Szafnauer said: "What happened was that there was a spike of flow and then a trough – so if you look at it over a lap it was neutral," he said, speaking before the stewards' decision. If you look at it over the lap there is no infringement, but it depends how you chop up the lap. This is the first time it has happened."
The disqualifications mean that Brendon Hartley and Marcus Ericsson have been promoted to ninth and tenth respectively. It is the second time this year that Haas has had a car disqualified form a race after Romain Grosjean was excluded from the Italian Grand Prix in September.