The Williams Formula 1 team has been fined €10,000 for a breach of tyre rules in Friday practice for the Belgian Grand Prix.
Teams are supposed to hand back one set of tyres from their allocation after the first 40 minutes of opening practice, although this can be delayed slightly if the session is affected by a red flag.
Such a delay occurred during Friday's first practice session thanks to Felipe Massa's accident, but Williams was found to have run one of its nominated sets on Lance Stroll's car at 11:09am and 11:21am local time - the best part of an hour after Massa's crash.
After looking into the matter the FIA decided, despite Williams openly admitted it had made a mistake, that a fine was necessary when taking into account previous offences.
A statement from the race stewards said: "Having considered the facts the Stewards accept that the infringement was inadvertent.
"The Stewards have taken due note of repeated offences concerning tyres by the team and a similar infringement for which a suspended fine was imposed."
Williams had been handed a suspended fine of €10,000 from the 2015 Malaysian Grand Prix after a similar offence when Massa ran tyres in a practice session that should have been handed back.