Each driver may use no more than one gearbox for five consecutive events ; every unscheduled gearbox change requires the driver to drop five places on the grid .
Driver failed to finish the previous race due to reasons beyond the team 's control .
Each driver may use no more than one gearbox for five consecutive events ; every unscheduled gearbox change requires the driver to drop five places on the grid unless he failed to finish the previous race due to reasons beyond the team 's control .