accident occurrence

aircraft accident (flight accident; aircraft mishap)

aircraft accident / flight accident, aircraft mishap

aircraft mishap / flight accident, aircraft accident

flight accident / aircraft accident, aircraft mishap

aircraft accident; flight accident

dangerous goods occurrence

voluntary occurrence reporting system

occurrence cause

occurrence site

unintentional occurrence

area of occurrence

intentional occurrence

mandatory occurrence reporting system

state of occurrence

touch-and-go occurrence

daily occurrence book

accident report

aircraft accident

nuclear weapons accident

demining accident

demining accident response plan

mine accident

follow-up action on accident reports

accident-free flying / mishap-free flying

mishap- / accident-free flying

post-accident check

accident condition

accident conditions

accident data report

accident data reporting

accident data reporting study group

accident data reporting system