Number of cases where an aircraft moving for a ground operation collides into a moving vehicle or equipment or vice versa

Number of cases where multiple aircrafts collides into or makes contact with each other on taxiway or apron due to poor management of ground operation

Cases where an injury, death, or property damages on an aircraft, facilities or vehicle occurs due to other person(s),facilities or vehicle

• Cases where aircraft operation has been impaired due to poor management of movement areas in local airports
• Cases where operation of an aviation light system has been interrupted

• Cases where operation of radio navigational safety facilities, mobile air communication facilities, fixed air communication facilities or automatic terminal information service(ATIS) has been interrupted
• Cases where signal transmission/reception of aircrafts with facilities such as radio navigational safety facilities,mobile air communication facilities, fixed air communication facilities or automatic terminal information service(ATIS)has been interrupted
• Cases where redundant equipment including power facilities to prepare for interruptions of 1) and 2) has been impaired for more than 24 hours