The National Transportation Safety Board has released its preliminary report on the Jan. 24 plane crash near Monroe that claimed four lives.

The report indicates that the airplane was off course on its first approach to Monroe Regional Airport and the pilot was instructed to adjust his approach. The reports say it appears that when the pilot failed to correct sufficiently, the tower canceled the plane's landing clearance and issued missed approach instructions.

Radar indicates the plane made a tight right turn to the south at 1,600 feet. The plane climbed to 1,900 feet then descended and disappeared from radar.

The News-Star reports the plane's last recorded ground speed was about 230 mph.

An investigator said the normal approach speed for the aircraft is about 138 mph.