A Ferrari spokesman has denied reports an actual date has been set for Felipe Massa's test in the two-year-old F2007.
In a statement of support, Sir Frank Williams let slip that the Suzuka stewards last weekend approved the Fiorano run for October 12.
But a spokesman for the famous Maranello based team said: "It is possible Felipe will drive an F1 car in the coming days, but it's not been decided exactly when."
Massa's test, also to be conducted on GP2 rubber so as not to breach F1's in-season testing ban, will mark his return to formula one machinery since his horror crash during Hungaroring qualifying in July.
