Hot off the AP wire:
https://www.yahoo.com/finance/news/ntsb-lawmaker-plane-crash-flew-204624896.html"An Alaska state lawmaker who was involved in a July midair collision that killed seven people was piloting his plane even though his medical flight certification was denied eight years ago because of vision problems, a federal agency reported Tuesday"
May not have been the #1 factor in the collision, but certainly could have been a contributing factor. Pilot error is prolly the # 1 factor.
