1.

Occurrences which may represent a significant risk to aviation safety and which fall into the following categories shall be reported by the persons listed in paragraph 6 through the mandatory occurrence reporting systems pursuant to this Article: occurrences related to the operation of the aircraft, such as: collision-related occurrences; take-off and landing-related occurrences; fuel-related occurrences; in-flight occurrences; communication-related occurrences; occurrences related to injury, emergencies and other critical situations; crew incapacitation and other crew-related occurrences; meteorological conditions or security-related occurrences; occurrences related to technical conditions, maintenance and repair of aircraft, such as: structural defects; system malfunctions; maintenance and repair problems; propulsion problems (including engines, propellers and rotor systems) and auxiliary power unit problems; occurrences related to air navigation services and facilities, such as: collisions, near collisions or potential for collisions; specific occurrences of air traffic management and air navigation services (ATM/ANS); ATM/ANS operational occurrences; occurrences related to aerodromes and ground services, such as: occurrences related to aerodrome activities and facilities; occurrences related to handling of passengers, baggage, mail and cargo; occurrences related to aircraft ground handling and related services.

← Article 4 · All articles · art_4__para_1__text_1 →

Source: EUR-Lex (Cellar) · retrieved 2026-11-02 · Text as adopted (Official Journal); later amendments are not incorporated in this text.