Questions tagged [safety]

Safety includes all aspects of protecting aircraft, passengers and crew from accidents, mistakes and other potentially dangerous situations.

Safety is a very broad topic and includes all measures taken to protect aircraft, passengers and crew from accidents or other incidents. Safety can be achieved and improved in many different ways including aircraft design, airspace layout, crew training, maintenance, flight planning, post-incident investigations and so on.

Note that safety should not be confused with security, which is concerned with protection against deliberate malicious acts.

Use this tag for all questions about how aviation safety is measured, achieved and improved, including questions about accidents and accident investigation. For questions that are purely about security (e.g. anti-hijacking measures) use instead, although some questions may involve both safety and security.

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Why are passenger seats not facing backward on an airplane?

In the event of a crash, facing backward sounds much safer: Forces are applied on a much larger surface (your whole back is in contact with the seats, instead of just a seatbelt and maybe the opposite seat) Most passenger are already in position…
Antzi
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Aircraft emergency oxygen: how hard do I pull on the mask?

AKA 'why is the safety briefing/training inadequate'. I tried Googling my title and got lots of sites explaining the emergency oxygen systems, procedures etc. that I already mostly knew. The briefing: 'Pull sharply on the tube to start the flow of…
Martin James
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Why is "runway behind you" useless?

I was recently answering this question and for some reason it made me think of this fairly famous aviation saying The three most useless things to a pilot are the altitude above you, runway behind you and fuel on the ground Now, I get altitude…
Jamiec
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Why is the seat belt mechanism on airplanes so different from the the one on cars?

You pull a flap on airplane seatbelts, you push a button on car seatbelts. Why?
yippy_yay
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How short does a trip need to be before flying is less safe than other forms of transportation?

It's often mentioned that flying is the safest form of transportation, and no doubt this is true when considering only a long-haul trip. There's no doubt, for example, that driving (or taking a train or bus) 3,000km would be more dangerous than…
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What steps can pilots take to mitigate the risk of controlled flight into terrain (CFIT)?

One of the inherent risks in flying an aircraft is a controlled flight into terrain (CFIT) incident. CFIT occurs when a flight impacts terrain while under positive control. Aside from incidents of suicide, this means the terrain impact came as a…
ryan1618
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What percentage of airplanes are involved in a crash in their lifetime?

The chances of a commercial flight crash are about 1 in 1,200,000 - pretty low. If each plane makes about 40,000 flights in it's lifetime, about 1 in 30 airplanes will be involved in a crash before it reaches retirement. Is this an accurate…
Tim
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Is it safe to wear earplugs in flight?

Speaking in terms of health for the ears and eardrums, would earplugs that form an airtight seal be dangerous to wear in flight due to cabin pressure changes? What about in the event of a rapid depressurization? And does it make a difference in…
d.a.vorm
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How do airlines ensure each passenger has a life jacket before a flight?

It's very easy for a passenger to walk away with a life jacket. What do airlines do in general to ensure that there is a life jacket available for each passenger? Do they check it manually as part of pre-flight check up?
Firee
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What happened with flight AC692 to St John's?

Yesterday, 2nd of March 2020, I was on board of Air Canada flight AC692 from Toronto (YYZ) to St. Johns (YYT). 40 minutes before landing, the plane turned around and flew back to Toronto. The flight time was supposed to be 2:20 hours, instead we…
Tim
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91 year old father allowed to fly a plane again?

My 91 year old father got his private pilots license over 60 years ago. He has not flown an airplane for 35 years and is saying that he can go buy his own airplane, again, and fly it tomorrow legally. He says that there is no one that checks for…
Terry
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Why do airline pilots have shoulder harnesses?

On airliners, passenger seatbelts are simple lap belts. However, flight crews seem to have at least shoulder straps, and often five-point harnesses. Why do flight crew have more restraints?
cpast
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How often do pilots fly drunk?

AVweb reported: 2018.07.30 - A former pilot for Alaska Airlines was sentenced on Wednesday to a year and a day in federal prison, for flying two flights in 2014 with a blood alcohol level more than three times the legal limit. Arnston flew…
jwzumwalt
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Was there ever an accident from in-flight smoking?

In the 80s and 90s, regulation increased to prohibit smoking in passenger planes. Was smoking ever identified as the cause for serious accident in flight (for example the cabin caught fire as a result of a stray cigarette on the carpeting or seats)?
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Can espresso be made at cruising altitude?

Espresso makers work by bringing water to a certain temperature (typically 198-202°F / 92-95°C), and then extract it at a high pressure (~9 bar). Given that the FAA requires that cabins are pressurized to ~7,500 ft, this results in a few problems I…
Sargun Dhillon
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