The FAA said last month that it exceeded its goal for reducing the “most serious” runway incursions by 25 percent in FY07, which ended September 30. According to the agency, there were 24 serious runway incursions this past year out of more than 61 million operations, or one for every 2.545 million operations, exceeding the agency’s goal of no more than one incursion for every two million surface movements. Serious runway incursions are defined as having “measurable risk of collision,” meaning participants must take extreme action to narrowly avoid a collision or the event results in a collision.