The Haas team has been fined 5,000 Euros for an unsafe release after Esteban Gutierrez's wheel came loose during the Malaysian Grand Prix.
Gutierrez's left right wheel came loose on his 39th lap of the race as he drove down to the heavy braking zone at Turn 9. The Haas driver retired from the race.
After speaking to Gutierrez and the technical delegate after the race, the stewards decided to fine the American team for the incident.
The stewards said in a statement: "Having reviewed the audio from the car, the available data and spoken to the driver and team concerned, the Stewards were satisfied that the driver Gutierrez did not know that he was driving the car in an unsafe condition.
"It appears that a mechanical failure led to the wheel being able to be tightly fitted to the car while not actually attached correctly. An additional failure occurred in turn one under braking, but the wheel was still retained in an abnormal way until it appears that the failure of the rim blew the wheel past the retention devices."
The stewards have also asked Haas to provide the technical delegate with a report on the failure and all the actions it will take to ensure there is no repeat in future races.