The female employee suspended by Red Bull has appealed against the decision to clear team principal Christian Horner of misconduct following allegations of inappropriate behaviour, according to the PA news agency.
After an investigation, Red Bull dismissed the complainant’s grievances in February, meaning Horner was allowed to remain in his role within the team.
But the employee has now lodged a formal appeal with the F1 team’s Austrian parent company Red Bull GmbH.
Sky Sports News reported the Federation Internationale de l’Automobile (FIA) – which governs F1 – is also evaluating an inquiry relating to allegations by Horner’s accuser.
The employee, who is believed to have reported in for work in Milton Keynes, was told she acted dishonestly and is understood to have been suspended on full pay.
She also received a legal letter, which gave her five working days to appeal against the outcome of the investigation.
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Horner, 50, who has always denied the claims made against him, was allowed to continue in his role when GmbH cleared him of any wrongdoing.
When questioned about it on 7 March, ahead of the Saudi Arabian Grand Prix in Jeddah, Horner said: “There’s been a lot of coverage surrounding this.
“One has to go back to the basis. A grievance was raised, it was fully investigated and it was dismissed. We move onwards.”
“It has been of great interest in different elements of the media for different reasons,” he added.
“I think it’s time to draw a line under it. And to focus on what is going on the track.”
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He said the investigation had been a “very trying period” for him and his family, including his wife, former Spice Girl Geri Horner.
“My wife has been phenomenally supportive through this, as has my family, but the intrusion on my family is now enough, and we need to move forward and focus on what we are here for,” he said.
Sky News has contacted Red Bull Racing for comment.
