ANNEX IV -- OCCURRENCES RELATED TO AERODROMES AND GROUND SERVICES

• Regulation (EU) 2015/1018 found in: Occurrence Reporting (376/2014) (Dec 2022)

ANNEX IV — OCCURRENCES RELATED TO AERODROMES AND GROUND SERVICES Regulation (EU) 2015/1018 **1. SAFETY MANAGEMENT OF AN AERODROME** *Remark*: This Section is structured in such a way that the pertinent occurrences are linked with categories of activities during which they are normally observed, according to experience, in order to facilitate the reporting of those occurrences. However, this presentation must not be understood as meaning that occurrences must not be reported in case they take place outside the category of activities to which they are linked in the list. **1.1. Aircraft- and obstacle-related occurrences** (1) A collision or near collision, on the ground or in the air, between an aircraft and another aircraft, terrain or obstacle ([[27]](#_ftn27)). (2) Wildlife strike including bird strike. (3) Taxiway or runway excursion. (4) Actual or potential taxiway or runway incursion. (5) Final Approach and Take-off Area (FATO) incursion or excursion. (6) Aircraft or vehicle failure to follow clearance, instruction or restriction while operating on the movement area of an aerodrome (for example: wrong runway, taxiway or restricted part of an aerodrome). (7) Foreign object on the aerodrome movement area which has or could have endangered the aircraft, its occupants or any other person. (8) Presence of obstacles on the aerodrome or in the vicinity of the aerodrome which are not published in the AIP (Aeronautical Information Publication) or by NOTAM (Notice to Airmen) and/or that are not marked or lighted properly. (9) Push-back, power-back or taxi interference by vehicle, equipment or person. (10) Passengers or unauthorised person left unsupervised on apron. (11) Jet blast, rotor down wash or propeller blast effect. (12) Declaration of an emergency (‘Mayday’ or ‘PAN’ call). **1.2. Degradation or total loss of services or functions** (1) Loss or failure of communication between: (a) aerodrome, vehicle or other ground personnel and air traffic services unit or apron management service unit; (b) apron management service unit and aircraft, vehicle or air traffic services unit. (2) Significant failure, malfunction or defect of aerodrome equipment or system which has or could have endangered the aircraft or its occupants. (3) Significant deficiencies in aerodrome lighting, marking or signs. (4) Failure of the aerodrome emergency alerting system. (5) Rescue and firefighting services not available according to applicable requirements. **1.3. Other occurrences** (1) Fire, smoke, explosions in aerodrome facilities, vicinities and equipment which has or could have endangered the aircraft, its occupants or any other person. (2) Aerodrome security related occurrences (for example: unlawful entry, sabotage, bomb threat). (3) Absence of reporting of a significant change in aerodrome operating conditions which has or could have endangered the aircraft, its occupants or any other person. (4) Missing, incorrect or inadequate de-icing/anti-icing treatment. (5) Significant spillage during fuelling operations. (6) Loading of contaminated or incorrect type of fuel or other essential fluids (including oxygen, nitrogen, oil and potable water). (7) Failure to handle poor runway surface conditions. (8) Any occurrence where the human performance has directly contributed to or could have contributed to an accident or a serious incident. **2. GROUND HANDLING OF AN AIRCRAFT** *Remark:* This Section is structured in such a way that the pertinent occurrences are linked with categories of activities during which they are normally observed, according to experience, in order to facilitate the reporting of those occurrences. However, this presentation must not be understood as meaning that occurrences must not be reported in case they take place outside the category of activities to which they are linked in the list. **2.1. Aircraft- and aerodrome-related occurrences** (1) A collision or near collision, on the ground or in the air, between an aircraft and another aircraft, terrain or obstacle ([[28]](#_ftn28)). (2) Runway or taxiway incursion. (3) Runway or taxiway excursion. (4) Significant contamination of aircraft structure, systems and equipment arising from the carriage of baggage, mail or cargo. (5) Push-back, power-back or taxi interference by vehicle, equipment or person. (6) Foreign object on the aerodrome movement area which has or could have endangered the aircraft, its occupants or any other person. (7) Passengers or unauthorised person left unsupervised on apron. (8) Fire, smoke, explosions in aerodrome facilities, vicinities and equipment which has or could have endangered the aircraft, its occupants or any other person. (9) Aerodrome security-related occurrences (for example: unlawful entry, sabotage, bomb threat). **2.2. Degradation or total loss of services or functions** (1) Loss or failure of communication with aircraft, vehicle, air traffic services unit or apron management service unit. (2) Significant failure, malfunction or defect of aerodrome equipment or system which has or could have endangered the aircraft or its occupants. (3) Significant deficiencies in aerodrome lighting, marking or signs. **2.3. Ground handling specific occurrences** (1) Incorrect handling or loading of passengers, baggage, mail or cargo, likely to have a significant effect on aircraft mass and/or balance (including significant errors in loadsheet calculations). (2) Boarding equipment removed leading to endangerment of aircraft occupants. (3) Incorrect stowage or securing of baggage, mail or cargo likely in any way to endanger the aircraft, its equipment or occupants or to impede emergency evacuation. (4) Transport, attempted transport or handling of dangerous goods which resulted or could have resulted in the safety of the operation being endangered or led to an unsafe condition (for example: dangerous goods incident or accident as defined in the ICAO Technical Instructions ([[29]](#_ftn29))). (5) Non-compliance on baggage or passenger reconciliation. (6) Non-compliance with required aircraft ground handling and servicing procedures, especially in de-icing, refuelling or loading procedures, including incorrect positioning or removal of equipment. (7) Significant spillage during fuelling operations. (8) Loading of incorrect fuel quantities likely to have a significant effect on aircraft endurance, performance, balance or structural strength. (9) Loading of contaminated or incorrect type of fuel or other essential fluids (including oxygen, nitrogen, oil and potable water). (10) Failure, malfunction or defect of ground equipment used for ground handling, resulting into damage or potential damage to the aircraft (for example: tow bar or GPU (Ground Power Unit)). (11) Missing, incorrect or inadequate de-icing/anti-icing treatment. (12) Damage to aircraft by ground handling equipment or vehicles including previously unreported damage. (13) Any occurrence where the human performance has directly contributed to or could have contributed to an accident or a serious incident. --- [[27]](#_ftnref27) Obstacle includes vehicle. [[28]](#_ftnref28) Obstacle includes vehicle. [[29]](#_ftnref29) Technical Instructions For The Safe Transport of Dangerous Goods by Air (ICAO — Doc 9284).