Madison - In what could possibly be the best case scenario ever for a plane crash, two groups of skydivers survived a collision, thanks to the fact that they were all ready to jump and equipped with parachutes.Discovery News reports that the nine skydivers and two pilots escaped the accident, which happened 12 000 feet in the air over Lake Superior in the US state of Wisconsin on Saturday night, with nothing more than a few scrapes and bruises. In a stroke of good luck, all the skydivers had been preparing to jump when the collision happened, while one pilot ejected himself and deployed an emergency parachute, and the other made an emergency landing at the airport they had taken off from. One of the skydivers, Mike Robinson, told AP that they were all ready to jump when the trail plane appeared over the top of the lead aircraft and came down on top of it. He described how everything turned into a big red fireball and the wing separated, which was pretty much their cue to leave.Fortunately all the skydivers had parachutes with which they were able to steer themselves clear of the falling debris, allowing everyone to land safely. The incident is currently under FAA investigation.