significant survivable accident

survivable

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

area of military significant fallout

genetically significant dosage

maintenance significant item

mean time between significant failures

militarily significant fallout

militarily significant quantity

militarily significant state

military significant fallout

no significant change

safety significant operations

significant advance / breakthrough

significant aggravation

significant characteristics

significant concession

significant counterintelligence brief

significant damage

significant data selection

significant developments

significant divergences

significant efforts / endeavors

significant gains

significant impact / influence

significant meteorological information

significant military presence

significant structural inspection

significant track