in final qualifying. Scheckter was the top qualifying championship contender, in sixth, with Fittipaldi directly behind him in eighth and Regazzoni in ninth. Sunday was a glorious day, clear and warm. On the parade lap, Andretti developed an ignition fault, and the start was delayed 25 minutes while the crew scrambled to solve the problem. Finally, Mario took his place on the grid, but when starter Tex Hopkins dropped the green flag, the Parnelli car sat still, and the field had to scramble to avoid him. His crew eventually got the car push started two laps late, but Andretti was black-flagged for getting assistance on the course. Race start through lap 9 From the start, Reutemann led Hunt, Pace, Niki Lauda, Scheckter, Fittipaldi and Regazzoni. Gradually, the gap between Reutemann and Hunt widened, and by the end of the third lap, it was clear that all was not right with Regazzoni, as a train was forming behind the Ferrari. Lauda, in fourth and just ahead of Scheckter and Fittipaldi, began to do his part in the Championship battle by holding them up for his teammate, the struggling Regazzoni, whose front end was heaving and wallowing with a defective damper. Lap 10 fatal accident On lap 10, the Surtees of Austrian Helmuth Koinigg, in just his second Grand Prix, went off in the hairpin turn 7 where Regazzoni, Jean-Pierre Beltoise and Andretti had crashed in practice. Koinigg's car suffered a suspension failure pitching it head-on into the Armco barrier, as in François Cevert's fatal crash at The Glen one year earlier. The speed at which Koinigg crashed was relatively minor, and he ought to have escaped the scene uninjured. However, as with a number of other circuits at that time, the Armco was insecurely installed and the bottom portion of it buckled as the vehicle struck it. The car passed underneath the top portion, which remained intact, leaving the young driver with no chance as it decapitated Koinigg, killing him instantly. Lap 15 through finish On lap 15, Regazzoni pitted in desperation, but a tire change didn't improve his car. The Ferrari pit now told Lauda to go on, and he quickly pulled 2.5 seconds clear of Scheckter. Fittipaldi made half-hearted attempts to outbrake the Tyrrell, but, with Regazzoni out of the picture, he knew that if he could stay close, the Championship would be his. Beginning on lap 24, a