every accident has to be investigated by an independent body, that is, the safety investigation authority of the member state in which the accident occurred; such an investigation also has to be undertaken in the case of a serious incident involving aircraft with a maximum take-off mass of over 2250 kg;
iga õnnetuse uurimist peab läbi viima sõltumatu asutus, s.o selle liikmesriigi ohutusalast uurimist teostav asutus, kus õnnetus toimus; selline uurimine tuleb samuti läbi viia tõsise lennuintsidendi puhul, mis on toimunud õhusõidukiga, mille maksimaalne stardimass ületab 2250 kg;