specified air route or lost its course, it shall rapidly take all necessary measures to enable the aircraft to regain course.
Article 84 Necessary navigation, communication, meteorological and ground monitoring equipments shall be installed on the air route.
Article 85 The natural obstacles that affect flight safety on air route shall be marked on aeronautical charts; flight obstacle lights and marks shall be installed on man-made obstacles that affect flight safety on air route and shall be kept in normal condition.
Article 86 The construction of a shooting range or other facilities that will possibly affect flight safety is prohibited within the area extending 30 kilometers from the edges of an air route, unless it is a shooting range for flat trajectory light weapon.
The construction of a fixed or temporary air shooting ground beyond the area prescribed in the preceding paragraph shall be subject to approval according to relevant State regulations; the shooting direction of an air shooting range shall not intersect an air route.
Article 87 Any activity that will possibly affect flight safety may be carried out only after being approved according to law with necessary measures being taken to ensure flight safety.
