The U.S. Federal Aviation Administration (FAA) issued a Safety Alert for Operators (SAFO), to warn pilots of high-risk category runway incursions and potential collisions in the first two-thirds (2/3) of an active runway.
The FAA states a high percentage of Category A or B runway incursions, and the highest risk of collisions, occur in the first two-thirds of a runway.
A Category A runway incursion is a serious incident in which a collision is narrowly avoided. A Category B runway incursion is an incident in which separation decreases and there is a significant potential for collision, which may result in a time-critical corrective/evasive response to avoid a collision.
The SAFO contains several recommended actions for pilots, vehicle/tug drivers, and operators.