At 1403 Pacific time, the airplane impacted the Pacific Ocean and sank following a loss of control during cruise flight. The Airline Transport pilot and three passengers were fatally injured; the airplane was destroyed. Visual conditions prevailed. A witness on a sailboat approximately two miles offshore observed the airplane in a nose-low attitude spiraling toward the ocean, akin to a corkscrew pattern. He thought that the airplane was conducting aerobatic maneuvers. The airplane impacted the water in the nose-low attitude about 100 yards from the boat. The wreckage was recovered on November 22, 2005, and was transported to a salvage facility where a detailed examination will take place at a later date.