The King Air had been airborne for just 30 minutes, en route from Pine Bluff to Bentonville in Arkansas, when it began its descent from 16,500 feet. The weather was clear, and the 3,400-hour private pilot, 72, was on VFR flight following with Razorback Approach at Fort Smith.
Nine minutes after leaving 16.5, he told the controller that he wanted to change his destination to Fayetteville.
