The drop unfolded just 71 seconds after United Airlines Flight UA 1722 took off from Kahului Airport in Maui bound for San Francisco on Dec. 18, according to data from Flight Radar, a flight tracking website. The dive was first reported by The Air Current. The flight data shows the plane took off at 2:49 p.m. local time and rose to an altitude of 2,200 feet when it suddenly took a dive and dropped to 775 feet over the Pacific Ocean. The plunge saw the plane dip at a vertical rate of nearly 8,600 feet per minute, according to the...