One problem related to speed control springs has been reported for the 2001 Subaru Outback. The most recently reported issues are listed below.
"this is graphic evidence of what happens when someone like Subaru 'forgets' to fit a $1 spring clip. The throttle probably stuck at around 3/4 open as she had just been traveling up a steep hill less than 2 miles from our house. The road then dips down and goes into a series of s bends, she left the road doing about 80mph and hit a tree 5 foot up in air from the road's surface. It was a bright sunny day, no precipitation, she was trapped in there for 45 mins and as you can see from the door pillars they tried to cut with their hurst cutters the car survived remarkably. But all the people who have seen this wreck said it was not a survivable accident. I wonder if the people in their big corporations ever consider these type of things, or whether they sleep at night???".