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Loss of Control In‑flight (LOC‑I)
LOC‑I remains the top risk area leading to the largest number of fatal accidents and fatalities in the CAT fixed
wing. LOC‑I involves the momentary or total loss of control of the aircraft, usually involving a significant deviation
from the intended flight path. This might be the result of reduced aircraft performance or because the aircraft
was flown outside its capabilities for control.
The analysis for LOC‑I was carried out to support the development of the Agency’s CAT FW Safety Risk Portfolio,
which will support to the European Aviation Safety Plan (EASp) and facilitate the management of safety issues in
the Agency as previously described in Chapter 2. The main goal of the analysis was to identify the most relevant
safety issues present in LOC‑I events.
The analysis covers a six‑year time frame, from 2009 to 2014 and involved 65 occurrences that were categorised
as LOC‑I. For the analysis, the definition of LOC‑I was openly applied with the aim of capturing all the relevant
safety issues leading to the upset of the aircraft in the first place and then to its subsequent loss of control.
Figure 12 shows the distribution of the 65 events by occurrence class as per Regulation (EU) 996/2010 and ICAO
Annex 13.
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Figure 12:
Distribution of LOC‑I occurrences by occurrence class
Accident
Serious incident
Incident
Accident, ,
%
Serious incident, ,
%
Incident, ,
%