Accident Overview
On an undetermined date, two aircraft collided in midair over a remote river. The first aircraft, a business flight carrying a certificated airline transport pilot and three passengers, was northwest bound at an altitude of 200 feet above the river. The second aircraft, operated by a certificated commercial pilot with no passengers, was southbound at the same altitude in the same area.
Witness Observations
Witnesses observed the two airplanes collide and then descend into the river. According to the witnesses, neither airplane took evasive action prior to the collision.
Weather Conditions
The weather at the time was reported as scattered clouds at 3,500 feet with a visibility of 25 miles.
Probable Cause
The National Transportation Safety Board determined the probable cause of the accident to be the failure of both pilots to maintain adequate visual lookout.