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Article 132-21 of the Civil Aeronautics Act stipulates that “Any person who has approved Type Certification etc. must, regarding with an unmanned aircraft of the type for which Type Certification etc. have been approved, collect information on situations specified by Ordinances of the Ministry of Land, Infrastructure, Transport and Tourism as those in which aircraft accidents, etc. (limited to those involving unmanned aircraft) and other unmanned aircraft do not comply with safety standards or are likely to fail to comply with safety standards, as stipulated in Article 2, paragraph 2 of the Act for Establishment of the Japan Transport Safety Board, and report such information to the Minister of Land, Infrastructure, Transport and Tourism”.
Specific details are set forth in Circular NO. 8-002 “Procedures for Type Certification, etc. of Unmanned Aircraft”, but the following situations, which are caused or suspected to be caused by the design or manufacturing process, must be reported to the Japan Civil Aviation Bureau (JCAB) as soon as possible within 10 days from the time the occurrence is known.

(1) Accidents listed in Article 132-90, paragraph 1, each item of the Act

● Injury or death of any person, or damage of any object caused by unmanned aircraft
● Collision or contact with aircraft

(2) Situations stipulated in Article 132-91 of the Act

● when there was a danger of collision or contact with aircraft
● Injury of any person by unmanned aircraft (Excluding accidents involving human deaths above.)
● Unmanned aircraft out of control situations
● Unmanned aircraft ignited situation (limited to those occurring in flight)

(3) In addition to (1) and (2) above, any other situations in which an unmanned aircraft fails or is likely to fail to comply with safety standards

● Damage, malfunction or defect in the control system of the propeller (rotor)
● Structural damage to propeller (rotor) hub or blades
● Damage to the motor or, in the case of an unmanned aircraft equipped with an engine (including an engine generator), damage to the engine (including the engine generator)
● Damage, malfunction, or defect in the structure, propulsion systems such as speed controllers, navigation and guidance systems such as gyros, communication systems such as receivers, or automatic control systems such as flight controllers that impairs normal operation or flight performance of the unmanned aircraft
● Other situations necessary to ensure safety