Italian Giancarlo Fisichella may have won Sunday's chaotic Brazilian Grand Prix instead of Finland's Kimi Raikkonen, motor racing's governing body said on Wednesday.
The International Automobile Federation (FIA) said in a statement that it is reviewing Sunday's race result after a timing discrepancy came to light.
McLaren's Raikkonen was awarded the race win, his second in a row, after the race was stopped on what appeared to be the 55th lap following Spaniard Fernando Alonso's huge crash.
Fisichella, who has yet to win a Grand Prix in 110 starts, had led at that stage in his Jordan. But under a countback procedure Raikkonen was declared the winner because he had been in front two laps before the declared finish.
The FIA said it now appeared that Fisichella, who led from the 54th lap, had in fact started his 56th lap when the race was stopped.
"The FIA has received evidence which suggests that, contrary to the information supplied by the timekeepers at the Brazilian Grand Prix, car number 11 (Fisichella) had started his 56th lap before the race was stopped," said the FIA.
"If this proves to be the case, the race classification would be at the end of the 54th lap and not at the end of the 53rd lap as published."
The FIA said the Brazilian Grand Prix stewards would reconvene in Paris on Friday to review the results.
The race at Interlagos started late behind the safety car after heavy rain and was punctuated by crashes in what resembled a demolition derby more than a Formula One race.
