The basic rules of the people's Republic of China, the fifth chapter * * * route and route flight.

Necessary monitoring and navigation equipment shall be provided for air routes and fixed air routes.

There should be alternate airports along the air route and fixed air route. Alternate airports should have necessary equipment and good communication, navigation and meteorological support.

Military airports as fixed alternate airports for civil aircraft or civil airports as fixed alternate airports for military aircraft shall be approved in accordance with relevant state regulations. The flight task book is the basic document that allows pilots to perform transition flights and civil aviation flights. The mission statement shall be issued by the person in charge of the aviation unit or airline stationed at the airport.

In the mission statement, the mission, departure time, route, altitude, minimum meteorological conditions for the pilot's flight and other related matters shall be specified. The take-off of aircraft flying on air routes, air routes or transitions shall be determined according to the preparations of the pilots and aircraft, the preparations of the take-off airport, the landing airport and the alternate airport, and the weather conditions. Take-off is not allowed in any of the following circumstances:

(1) The crew members are not uniformly dressed, or are not suitable for flying due to technical and health reasons;

(two) the flight crew did not complete the flight preparation, the quality of flight preparation did not meet the requirements, and the person in charge of the aviation unit or airline stationed at the airport did not approve the flight;

(three) the flight crew did not carry the flight task book, flight meteorological documents and other necessary flight documents;

(four) the flight crew did not proofread the navigation, communication and navigation data and instrument approach map or cloud map required for this flight;

(5) The failure of the aircraft or the equipment on the aircraft may affect flight safety, or the equipment of the civil aircraft is lower than the regulations of minimum equipment list, or the military aircraft may affect flight safety after being confirmed by the captain;

(six) the ice, frost and snow on the surface of the aircraft have not been removed;

(seven) the loading and riding on the aircraft do not meet the requirements;

(8) The aircraft did not carry spare fuel as required;

(nine) the meteorological conditions are lower than the minimum meteorological conditions for pilots to fly, and the meteorological conditions endanger the safety of this flight. When flying visually, the aircraft shall avoid in accordance with the following provisions:

(a) meet at the same height, should avoid to the right, and keep the interval of more than 500 meters;

(2) When crossing at the same altitude, the pilot should lower the altitude when he sees another aircraft from the left side of the cockpit, and raise the altitude when he sees another aircraft from the right side of the cockpit;

(three) overtaking at the same altitude, should overtake from the right side of the previous plane, and keep the interval of more than 500 meters;

(4) Single aircraft should take the initiative to avoid formation or towing aircraft, aircraft with power devices should take the initiative to avoid aircraft without power devices, and fighters should take the initiative to avoid transport aircraft. Before the plane passes through the midway airport from 100 to 50 kilometers along the air route and fixed air route, the flight personnel shall report the estimated passing time and altitude to the air traffic controller or flight commander of the airport, unless there is an agreement. The air traffic controller or flight commander of the midway airport must direct the aircraft flying in the airport area to avoid the passing aircraft and ensure their safe passage; Without special reasons, the route and altitude of passing aircraft shall not be changed.

When an aircraft flies over a midway airport on a temporary route, it shall pass at the prescribed route and altitude, or pass according to the instructions of the air traffic controller or flight commander of the airport. If an aircraft flying on a flight route, route or transition needs to continue flying before taking off or after landing at the midway airport, the captain or his agent must go through the flight procedures at the airport flight control department, check the relevant information and take off after approval; If the plane needs to take off continuously after landing, it must obtain the permission of the flight control department of the midway airport in advance.

After the aircraft flying on the air route, air route or transit land, the captain or his agent must report the flight situation and the meteorological conditions of the air route and air route to the airport flight control department or the airline, and submit the flight task book and the flight meteorological report form.

An aircraft that lands at an unplanned airport without approval must be reported to the superior by the person in charge of the aviation unit stationed at the airport, and can take off only after approval. The purpose of flight interval is to prevent flight conflicts, ensure flight safety and improve the utilization of flight space and time. The minimum safe distance should be kept between aircraft. Flight interval includes vertical interval and horizontal interval. Horizontal spacing is divided into vertical spacing and horizontal spacing.

The pilot-in-command must fly in accordance with the prescribed flight interval, and if it is really necessary to change it, it shall be approved by the flight control department. The vertical interval of air route, air route flight or transition flight shall be equipped according to the flight altitude. The flight altitude layer is divided according to the following standards:

(1) The true heading angle ranges from 0 to 179 degrees, the altitude ranges from 900 meters to 8 100 meters, and every 600 meters is a height layer; The height ranges from 8900 meters to 12500 meters, and every 600 meters is a height layer; The height is above 12500m, and every 1200m is a height layer.

(2) The true heading angle is within the range of 180 degrees to 359 degrees, and the altitude is 600 meters to 8,400 meters, and every 600 meters is a height layer; The height ranges from 9200m to 12200m, and every 600m is a height layer; The height is above13100m, and every1200m is a height layer.

(3) The flight altitude layer shall be calculated according to the assumed sea level at standard atmospheric pressure. The real route angle should be measured from the starting point and turning point of the route.

For the specific equipment standards of the flight altitude floor, see Annex II to these Rules. Safe flying height is the lowest flying height to avoid collision between aircraft and ground obstacles.

The safe altitude of air route, air route flight or transition flight shall be higher than the maximum altitude of 600 meters within 25 kilometers on both sides of air route in plateau and mountainous areas; Other areas should be higher than the center line of the route and the highest altitude of 400 meters within 25 kilometers on both sides of the route.

The safety altitude of the route, route flight or transition flight of an aircraft with limited performance shall be stipulated separately by the relevant aviation administrative department. The altitude level of air route, air route flight or transition flight shall be specifically equipped by the person in charge who has approved this flight through the flight control department.

The flight level should be equipped according to the mission nature, aircraft performance, flight area, route topography, weather and flight conditions. Before take-off, an aircraft flying on an air route, an air route or a transition shall adjust the value of the on-site air pressure to the fixed index of the air pressure altimeter on the aircraft, so that the pointer of the air pressure altimeter points to zero.

After take-off, if an aircraft flying on an air route, air route or transition rises to a height of 600 meters away from the airport runway at an airport where there is no transition height or transition height, it shall adjust the standard sea level pressure value of the air pressure altimeter on the aircraft to a fixed index, and then continue to rise to the specified flight height layer; For airports with transition altitude or transition altitude, when the barometric altimeter rises to the transition altitude or transition altitude, the barometric altimeter should be adjusted to the standard sea level barometric value.

When an aircraft flying on an air route, flight route or transition enters the landing airport area and descends to the transition height floor of the airport, or according to the instructions of the air traffic controller and flight commander, the value of the air pressure at the airport site is adjusted to the fixed index of the air pressure altimeter on the aircraft.

Airports that are only used for the take-off and landing of civil aircraft can correct the sea level pressure value for the aircraft pressure altimeter.

Airports that provide take-off and landing for foreign aircraft can provide airport corrected sea level pressure values to foreign aircraft.

If military and civil aircraft fly at the same airport at the same time, it is necessary to unify the barometric altimeter on the aircraft to adjust the timing. Before taking off at the plateau airport, if the pressure scale of the air pressure altimeter on the plane cannot be adjusted to the air pressure value at the airport site, the standard sea level pressure value of the air pressure altimeter should be adjusted to a fixed index (the altitude indicated at this time is assumed to be zero altitude), and then take off and rise to the specified flight altitude.

When landing at the plateau airport, if the pressure scale of the air pressure altimeter on the plane cannot be adjusted to the air pressure value at the airport site, it should land at the assumed zero altitude notified by the air traffic controller or flight commander. If there are two barometers on the plane, the standard sea level pressure value of one barometer should be adjusted to a fixed index, and the standard sea level pressure value of the other barometer should be adjusted to a fixed index with corrected sea level pressure value.

When flying in plateau and mountainous areas, we must pay attention to the use of air pressure altimeter and radio altimeter on the plane. If it is necessary to change the flight altitude layer due to aircraft failure, ice accumulation, flying around the thunderstorm area, etc. The captain should report to the flight control department the reason and the exact position of the aircraft at that time, and request to be equipped with another flight level. When the flight control department allows the aircraft to change the flight altitude, it must clearly change the altitude and change the position and time of the altitude.

In case of emergency, when flight safety is threatened, the captain may decide to change the original flight level, but he must immediately report to the flight control department and be responsible for the decision. The way to change the altitude level is to turn right 30 degrees from the flight direction of the plane, fly 20 kilometers on this route, then turn left parallel to the original route to rise or fall to a new altitude level, and then turn back to the original route.