Boeing warned plane owners in 2011 about a broken part that contributed to last year's UPS cargo plane crash that killed 15 people, but at that time the plane manufacturer didn't believe it threatened safety,

A 2011 service letter from Boeing recommended regular inspection of the part, but said it "would not result in a safety of flight condition."

What was supposed to be a routine cargo flight from Louisville, Kentucky, to Honolulu, Hawaii, turned into a tragic story. The video was filmed after the filmer, Sydney, received an emergency alert about a plane crash at the Louisville airport.