We need more certainty about bias, some dependable, fail-safe test.
Scary enough, but the researchers also found that the corrupted system's self-analysing fail-safe would itself sometimes fail to detect the anomaly.
Eyewear of the appropriate optical density is worn when using devices not equipped with fail-safe mechanisms.
With modern systems that relied more on fail-safe electronic units than on mechanical devices that could break down or malfunction at any time, flying had become a lot safer these days.
They also see prompts as a means for new users to teach themselves to use a device in a fail-safe manner.
For the uninitiated, most ground forces still employ a final fail-safe method for testing the air before giving the ‘all clear’ message to soldiers wearing their gas masks.
It's a cheap one, and does not seem to have some form of fail-safe opening-from-the-outside device, for people that have forgotten their keys.
Since that time the device has gone through rigorous testing to develop tamper-resistant and fail-safe systems.
Elements of information on the certificate are placed in a particular way so as to act as a fail-safe against any crude counterfeit efforts.
It's pretty fail-safe , but you still have to pay attention to what you're doing.