Officials said the runway approach warning system was still operating normally when the serious collision between the Japan Airlines plane and the JCG plane occurred.
According to Kyodo, on January 5, the Japanese Ministry of Land, Infrastructure, Transport and Tourism said that the monitoring system with the function of warning air traffic controllers when planes enter the airport runway, in order to prevent accidents, was still operating normally during the serious collision between a Japan Airlines (JAL) Airbus A350 commercial aircraft and a Japan Coast Guard (JCG) De Havilland Dash-8 aircraft at Haneda Airport in Tokyo on January 2.
The system displayed the entire runway flashing yellow on the air traffic controller's screen, and the aircraft flashing red when it detected an aircraft entering the runway.
Investigators will look into the possibility that air traffic controllers missed the warning on the screens.
Japan's Ministry of Land, Infrastructure, Transport and Tourism said air traffic controllers did not allow the JCG plane to enter the runway, while the pilots of the JAL plane said in an internal investigation that they could not visually confirm the presence of the JCG plane during landing.
Several factors, including human error, may have caused the crash that killed five of the six people on board the JCG plane.
Detailed investigations by the Japan Transport Safety Commission and the Tokyo Police Department are currently underway.
“While it is unclear whether controllers are monitoring, there is no regulation requiring them to continuously monitor the screen,” a ministry official said.
According to Vietnam+