Idaho CH-47 Crash Video  

Since everyone commenting on here you can tell right away has zero experience with the 47 and or a longline for that matter, I can promise you that PIC lack of LL time did not contribute to the accident. They were doomed  when the engines were cut and the pole wasn't put the the floor. Once those blades stalled it was over. They didn't ge the collective down till about 100 in air, and by then it was too late. The spot they landed on the river was also a contributing factor to the outcome, with the bank rising and the weight of the forward gearbox coming down, recipe for a nasty outcome. That's my take. As for the initial spin, I'll leave that to the pros.