Aircraft Accidents and Serious Incidents to be investigated



Aircraft accidents to be investigated
◎ Paragraph 1, Article 2 of the Act for Establishment of the Japan Transport Safety Board (Definition of aircraft accident)
The term "Aircraft Accident" as used in this Act shall mean the accident listed in each of the items in paragraph 1 of Article 76 of the Civil Aeronautics Act.

◎ Paragraph 1, Article 76 of the Civil Aeronautics Act (Obligation to report)
1. Crash, collision or fire of aircraft;
2. Injury or death of any person, or destruction of any object caused by aircraft;
3. Death (except those specified in Ordinances of the Ministry of Land, Infrastructure, Transport and Tourism) or disappearance of any person on board the aircraft;
4. Contact with other aircraft; and
5. Other accidents relating to aircraft specified in Ordinances of the Ministry of Land, Infrastructure, Transport and Tourism.

Aircraft serious incidents to be investigated
◎ Item 2, Paragraph 2, Article 2 of the Act for Establishment of the Japan Transport Safety Board (Definition of aircraft serious incident)
A situation where a pilot in command of an aircraft during flight recognized a risk of collision or contact with any other aircraft, or any other situations prescribed by the Ordinances of Ministry of Land, Infrastructure, Transport and Tourism under Article 76-2 of the Civil Aeronautics Act.

◎ Article 76-2 of the Civil Aeronautics Act
・When the pilot in command has recognized during flight that there was a danger of collision or contact with any other aircraft.
・When the pilot in command has recognized during flight that there is a danger of causing any of accidents listed in each item of paragraph 1, article 76 of the Civil Aeronautics Act, specified by Ordinances of the Ministry of Land, Infrastructure, Transport and Tourism.

◎ Article 166-4 of the Ordinance for Enforcement of the Civil Aeronautics Act (The case prescribed in the Ordinances of the Ministry of Land, Infrastructure, Transport and Tourism under Article 76-2 of the Civil Aeronautics Act)
 1. Take-off from a closed runway or a runway being used by other aircraft or aborted take off
 2. Landing on a closed runway or a runway being used by other aircraft or attempt of landing
 3. Overrun, undershoot and deviation from a runway (limited to when an aircraft is disabled to perform taxiing)
 4. Case where emergency evacuation was conducted with the use for emergency evacuation slide
 5. Case where aircraft crew executed an emergency operation during navigation in order to avoid crash into water or contact on the ground
 6. Damage of engine (limited to such a case where fragments penetrated the casing of subject engine or a major damage occurred inside the engine)
 7. Continued halt or loss of power or thrust (except when the engine(s) are stopped with an attempt of assuming the engine(s) of a motor glider) of engines (in the case of multiple engines, 2 or more engines) in flight
 8. Case where any of aircraft propeller, rotary wing, landing gear, rudder, elevator, aileron or flap is damaged and thus flight of the subject aircraft could be continued
 9. Multiple malfunctions in one or more systems equipped on aircraft impeding the safe flight of aircraft
 10. Occurrence of fire or smoke inside an aircraft and occurrence of fire within an engine fire-prevention area
 11. Abnormal decompression inside an aircraft
 12. Shortage of fuel requiring urgent measures
 13. Case where aircraft operation is impeded by an encounter with air disturbance or other abnormal weather conditions, failure in aircraft equipment, or a flight at a speed exceeding the airspeed limit, limited payload factor limit operating altitude limit
 14. Case where aircraft crew became unable to perform services normally due to injury or disease
 15. Case where parts dropped from aircraft collided with one or more persons
 16. Case equivalent to those listed in the preceding items

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