The Civil Aviation Administration of Chinese mainland announced on the 30th that the "M503 route from north to south flight bias" will be cancelled from February 1, and the W122 and W123 routes connecting with M503 will be launched from west to east. Zhang Jing, a senior researcher at the China Institute for Strategic Studies, said in an interview that M503 is a regular route, and if there are doubts, the ICAO will not approve it at all, and this time it is also Chinese mainland that adjusts the civil aviation route, calling for "Taiwan does not have to overreact, and indiscriminate ** will become a laughing stock." ”
It is understood that the controversy over the M503 route has been around since 2008, and it was not until 2015 when Ma Ying-jeou was in power that the two sides reached a consensus through the mechanism of the two mini-associations, when it was decided that the actual flight route of M503 should be moved 6 nautical miles to the west, and one-way flights from north to south were carried out. After this discussion, the actual route was offset by another 4 nautical miles to the west, while the three supporting connecting routes, W121, W122 and W123, were temporarily suspended.
In January 2018, Chinese mainland announced the launch of the M503 route, but maintained the setting of flying from north to south and yaw of 6 nautical miles, while also using the W122 and W123 routes, but maintaining the "east-to-west" flight setting.
Now, the Civil Aviation Administration of China has announced the official launch of the M503 route, and at the same time, it has also canceled the previous "north-to-south" flight offset, and also enabled the "west-to-east" flight setting of the W122 and W123 supporting contact routes.
Zhang Jing, a senior researcher at the China Institute for Strategic Studies, said that the M503 route is a route approved by the International Civil Aviation Organization. Moreover, the M503 route itself is all located in the Shanghai flight report area, and the planning is reasonable.
The reason why there was the idea of flying 6 nautical miles to the west back then, Zhang Jing said that this was a decision made by Chinese mainland at that time considering the situation between the two sides of the strait, and the current situation, the resumption of the original route of M503 is only a business affair, Zhang Jing also mentioned that "if Taiwan goes to the ICAO**, I am afraid that the teacher will be nameless and humiliating, so we should avoid unnecessary panic or deliberate hype." ”