Williams could face a severe punishment ahead of the Australian Grand Prix after the FIA informed race stewards that they were unable to extract the required amount of fuel from one of the team's cars.
Alex Albon was instructed to stop on track by his engineer during qualifying at Albert Park, moments after being knocked out in Q1.
Following the session, the FIA attempted to extract the required one litre of fuel from the car (plus an estimated 0.15 litres required to return it to the pit lane) for testing.
Instead, only a 0.33-litre sample could be extracted from Albon's car, a matter that was then passed to the race stewards.
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Williams facing heavy punishment
As a result, Williams have been summoned to Race Control for an alleged breach of Article 6.5.2 of the FIA Technical Regulations.
Albon is now facing the prospect of being excluded from qualifying, given the precedent for such incidents in the past.
Albon qualified 16th for the Australian GP, ahead of Kevin Magnussen, Sebastian Vettel, teammate Nicholas Latifi and Lance Stroll.
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