випадкова відмова; раптова відмова
random sampling
random shooter
random inspection
random test
random error
random access
random bullet
random exercise
random mixed alphabet
random numbering
random orbit satellite
random plan
random shot
fire at random
pseudo-random sequence (PRS)
deliberate failure
mean time between critical failure (MTBCF)
failure modes, effects, and criticality analysis
failure requiring overhaul
failure to control or report dangerous fire
bearing failure
failure to extract
failure to return to battery
heat-break failure
intelligence failure
aircraft electrical failure
chance failure
complete failure
dependent failure
externally caused failure
failure detection
failure quota