NTSB: Preliminary findings released on Biffle plane crash with undetermined cause

The NTSB released a preliminary report on the December plane crash that killed seven people, including former NASCAR driver Greg Biffle. No probable cause has been determined, with a full determination expected in 12–18 months. The Cessna 550 crashed about nine minutes after takeoff near Statesville Regional Airport as the crew attempted to return to the field. Investigators noted a left‑engine power imbalance, possible issues with the altitude indicator and left‑side instruments, and that the co‑pilot had limited qualifications; Biffle assisted from the rear. The cockpit voice recording was largely unintelligible. Tributes and a family foundation are planned.