The flight was cleared for the approach, and given a heading of 270 degrees to intercept the final approach course, the report said. The aircraft was at approximately 4,000 feet (1,220 meters), and on a heading of 120 degrees. At this point, the aircraft was three nautical miles (NM) (5.5 kilometers) north of the extended centerline of Runway 27, and about 11 miles (17.7 kilometers) from the runway. "According to the radar plot, it took about 30 seconds before the aircraft actually changed heading," the report said.