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Occurrence Categories
In order to assist in the identification of particular safety issues, one or multiple occurrence categories were
assigned to Aerial Work Aeroplane accidents involving EASA MS operators. This was done using the CICTT occur‑
rence categories, which are listed in Appendix 1.
Table 17 shows the accidents and serious incidents per occurrence category. In 2014, there was an unusually high
number of Post Impact Fires (F‑POST) and Collisions during Take‑Off or Landing (CTOL) when compared to the
preceding decade. In addition, Low Altitude operations features as a risk area within Aerial Work Fixed Wing
Aeroplane, again due to the unusual nature of some of the activities in the different sectors. Analysis of the occur‑
rence categories provides a basic overview of the risk areas for Aerial Work in general but a more detailed analysis
will be carried out for each of the different sectors to enable the development of specific Safety Risk Portfolios.
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Table 17:
Aerial work fixed wing accidents and serious incidents per occurrence category
Occurrence Category
Accidents and SIs
2004-2013 average 2014
SCF‑PP: Powerplant failure or malfunction
5.4
6
LOC‑I: Loss of control - inflight
4.3
5
SCF‑NP: System/Component Failure or malfunction [non‑Powerplant]
3.5
3
LALT: Low Altitude operations
3.3
1
ARC: Abnormal Runway Contact
2.3
4
LOC‑G: Loss of Control - Ground
2.2
1
MAC: Airprox/ACAS alert/loss of separation/(near) midair collisions
2.1
2
FUEL: Fuel related
2.1
0
OTHR: Other
1.5
1
F‑POST: Fire/smoke (Post‑Impact)
1.3
6
UNK: Unknown or undetermined
1.2
1
TURB: Turbulence encounter
0.7
1
AMAN: Abrupt Manoeuvre
0.7
0
WSTRW: Wind shear or Thunderstorm.
0.5
0
CFIT: Controlled Flight into or Toward terrain
0.4
0
USOS: Undershoot/Overshoot
0.4
0
CTOL: Collision with obstacle(s) during Take‑Off and Landing
0.3
3
ATM: ATM/CNS
0.3
0
ICE: Icing
0.3
0
RAMP: Ground Handling
0.3
0
ADRM: Aerodrome
0.2
0
F‑NI: Fire/smoke (Non‑Impact)
0.2
0
RI‑VAP: Runway Incursion - vehicle, aircraft or person
0.2
0
SEC: Security related
0.1
0
UIMC: Unintended flight in Instrument Meteorological Conditions
0.1
0