Towards the back of the Thursday time sheet, Schiattarella and Verstappen shared the former's chassis to set the 20th and 19th-fastest times respectively, as Verstappen's gearbox was still refusing to run smoothly. Schiattarella spun at La Rascasse and attempted to execute a spin-turn at the blind entry to the corner, almost collecting Roberto Moreno 's Forti in the process; he was given a $20,000 fine, suspended for three races, for "creating a very dangerous situation".   Verstappen then took over the car and crashed it, restricting the Simtek team to a total of nine laps between its two drivers. Behind Boullion, Andrea Montermini ( Pacific ) set the 22nd-quickest time, ahead of Moreno, who had to share his car with Diniz after the latter's gearbox failed, restricting him to 25th place, over four seconds slower than his teammate.   Occupying the last spot on the provisional grid, Bertrand Gachot failed to set a time due to a sheared brake disc on his Pacific, which caused his left-rear wheel to fall off on his first out-lap, forcing him to abandon his car out on the circuit.