Investigation timeline into fatal Greg Biffle plane crash released

Motorsport photoThe National Transportation Safety Board has started its investigation into the aviation incident that killed Greg Biffle, his family and three others on Thursday morning at Statesville Regional Airport.While a preliminary report will be released within 30 days, a full investigation will take 12 to 18 months before the publishing of a final report.NTSB Member Michael Graham conducted a press conference on Friday afternoon where they detailed what the process will look like over t