ABRUPT MANEUVER (AMAN)
The intentional abrupt maneuvering of the aircraft by the flight crew.
Usage Notes:
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This category includes the intentional maneuvering of the aircraft to avoid a collision with terrain, objects/obstacles, weather or other aircraft (Note: The effect of intentional maneuvering is the key consideration).
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Abrupt maneuvering may also result in a loss of control or system/component failure or malfunction. In this case the event is coded under both categories (e.g., AMAN and LOC–I, AMAN and SCF–NP, or AMAN and SCF–PP).
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Abrupt maneuvering may also occur on ground, examples include hard braking
maneuver, rapid change of direction to avoid collisions, etc.
AERODROME (ADRM)
Usage Notes:
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Includes deficiencies/issues associated with a State approved Aerodrome runways, taxiways, ramp area, parking area, buildings and structures, Crash/Fire/Rescue (CFR) services, obstacles on the Aerodrome property, lighting, markings, signage, procedures, policies, and standards.
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Examples include closed runways, improperly marked runways, construction
interference, lighting failures, signage limitations, etc.
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Occurrences do not necessarily involve an aircraft.
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Effects of Aerodrome design are also included here. For example, building layout and architecture which leads to surface wind disruptions would be coded as both ADRM and WS/TRW or TURB as appropriate.
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Includes heliports (excludes unprepared or natural landing sites).
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Includes loose foreign objects on aerodromes and on heliports (excludes unprepared or natural landing sites).
AIRPROX/TCAS ALERT/LOSS OF SEPARATION/NEAR MIDAIR COLLISIONS/MIDAIR COLLISIONS (MAC)
Airprox, TCAS alerts, loss of separation as well as near collisions or collisions between aircraft in flight.
Usage Notes:
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Includes all collisions between aircraft while both aircraft are airborne.
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Both air traffic control and cockpit crew separation-related occurrences are included.
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To be used for AIRPROX reports
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Genuine TCAS alerts are included here.
ATM/CNS (ATM)
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Includes ATC facility/personnel failure/degradation, CNS service failure/degradation, procedures, policies, and standards.
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Examples include, NAVAID outage, NAVAID service error, controller error, Supervisor error, ATC computer failure, Radar failure, and navigation satellite failure.
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Occurrences do not necessarily involve an aircraft.
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