Eli5: why do plane fleets get grounded after accidents but car fleets remain on the road even though they may have serious issues?

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Outside of a brief aside in the movie Fight Club and what I assume are economic reasons, I’ve never seen good compelling reasons why airplanes are grounded for accidents, while cars do not seem to undergo the same level of scrutiny?

Is it just because cars are tested more before they enter the market?

From an outsider’s perspective, it seems that airplanes are already much safer than cars- so what gives?

In: Engineering

30 Answers

Anonymous 0 Comments

Chicken before the egg. Airplanes are so safe partly BECAUSE of the amount of scrutiny around them and the sheer effort that goes into preventing accidents and adding/improving regulations when needed. Safety regulations are written in blood.

Plus, as others have said, you can’t just pull onto the shoulder if something goes wrong in a plane. If something breaks in a car you will be late (these types of failures are in the majority but obviously there are more dangerous potential failures). If something breaks in a plane, 300 people die. It’s a lot more likely to have multiple fatalities from some system failure in an aircraft than there is in a car.

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