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Annual Safety Review 2014
ATM
PAGE
118
Occurrence Categories ATM
In order to assist in the identification of particular safety issues, one or multiple occurrence categories were as‑
signed to ATM accidents and serious incidents involving the EASA MS ATM system. This was done using the CICTT
occurrence categories, which are listed in Appendix 1.
Considering the subject of the chapter, the presence of ATM as the second most commonly assigned occurrence
category is not surprising. However, that MAC, RI‑VAP, TURB and GCOL all appear in the top five indicates that
these, along with ATM, are the key risk areas for occurrences that commonly involve ATM/CNS. This information
is shown in Figure 41.
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Figure 41:
Number of Accidents and Serious Incidents per Occurrence Category, 2005-2014
0
50
100
150
200
250
MAC: Airprox/ ACAS alert/ loss of separation/ (near) midair collisions
ATM: ATM/CNS
RI-VAP: Runway incursion - vehicle, aircraft or person
TURB: Turbulence encounter
GCOL: Ground Collision
CFIT: Controlled ight into or toward terrain
WSTRW: Windshear or thunderstorm.
OTHR: Other
ARC: Abnormal runway contact
RE: Runway excursion
SCF-NP: System/component failure or malfunction [non-powerplant]
ADRM: Aerodrome
LOC-I: Loss of control - inight
FUEL: Fuel related
UNK: Unknown or undetermined
CABIN: Cabin safety events
LOC-G: Loss of control - ground
RAMP: Ground Handling
SCF-PP: powerplant failure or malfunction
AMAN: Abrupt maneuvre
EVAC: Evacuation
ICE: Icing
UIMC: Unintended ight in IMC
Number of accidents and serious incidents
Serious Incidents
Accidents