Questions tagged [safety]

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

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11 votes
2 answers
2k views

Does the NTSB and other investigative agencies charge airlines for investigations?

Does an airline have to pay the investigation team? For example the NTSB? And if Boeing or Airbus participate in the investigation, do they also charge the airlines?
3 votes
1 answer
932 views

What happens if an aircraft tries to land at MTOW (if greater than MLW)? [duplicate]

Here's a scenario: Just after Take-Off, there's an emergency on-board and pilot wants to land immediately. But, the weight of the plane wouldn't have decreased by large margins (usually 0.02*MTOW). ...
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2 votes
1 answer
151 views

Are there any situations where it's beneficial to disable altitude reporting in TCAS?

Having altitude reporting enabled persistently seems like a pretty common-sense thing to do -- it enables RA in addition to TA, the benefits of which are fairly obvious. That said, most of the common ...
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12 votes
2 answers
2k views

Who makes the call to start in terrible weather conditions?

I once headed to the airport during a huge thunderstorm with winds above 55 knots and massive rain and some small hail. At the airport, I saw that most flights were delayed or even canceled. To my ...
10 votes
1 answer
1k views

Why is TO/GA button disabled in 777 with weight on wheels or below 2 ft RA?

Recently a final report for accident of an Emirates B777-300 at Dubai on 3rd August 2016 was published. An important factor there was that when the pilot tried to recover from long landing by going ...
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1 vote
1 answer
910 views

What would happen when the fuel tank of a Cessna 172 became (partial) vacuum during horizontal flight?

Let's say we are flying a piston engine high wing airplane (Cessna 172) that uses a carburetor. What would happen when the fuel tank of a Cessna 172 became (partial) vacuum during horizontal flight?
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17 votes
3 answers
6k views

Can a commercial airplane overtake another airplane going in the same direction?

If there are two commercial airplane flying towards the same destination, on the same flight path, and the second plane is being faster than the first plane, is the second plane allowed to overtake ...
7 votes
1 answer
2k views

Are there any aircraft that were grounded and later approved for flight?

Last year the Boeing 737 Max 8 was grounded after two fatal crashes. Historically, are there any other commercial aircraft which were grounded (due to safety issues), and later “fixed” by ...
16 votes
6 answers
10k views

What is the commercial passenger aircraft top speed record?

Aircraft manufacturers claim that commercial passenger aircrafts cruise at the speed of 400-500 knots. But, is the top speed of a commercial passenger aircraft recorded (while in air)? If so, what is ...
9 votes
4 answers
5k views

What should a pilot flying IFR in IMC and on final, do if the vacuum system fails?

Talking about small aircraft here, assuming the pilot is stable and ready to land, they’re flying IFR and the visibility is nonexistent, but that’s alright because he’s currently IFR! But then the ...
4 votes
1 answer
212 views

Just how inaccurate are (Las Vegas) VOR radials?

I was discussing VOR-based navigation with a pilot, and he mentioned that VOR doesn't provide a very high level of integrity and safety (at least, compared to GPS or DME). He explained that the FAA ...
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3 votes
1 answer
398 views

Does the Ground Proximity Warning System (GPWS) see through clouds?

Or can it only detect terrain on a clear day or night? I’m mostly asking because of PIA268 I know GPWS is much more reliable in todays time, and I’m unsure if the accident flight even had a GPWS ...
0 votes
2 answers
286 views

Who does ATC call when a plane disappears with no response?

Do they just call 911? Or is there some special unit that’s specifically trained around disasters and rescue?
29 votes
3 answers
10k views

Why is the most common hydraulic fluid so poisonous?

The usual hydraulic fluid, Skydrol, is poisonous. If it makes it to the air conditioning system, it causes fume events that may have adverse health effects up to and including at least one fatality. ...
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0 votes
0 answers
62 views

Why do civil aviation aircraft not routinely carry missile defense systems? [duplicate]

With all the incidents with civil aircraft and missiles, why do civil aircraft not carry flares and other defensive measures by default? If official aircraft carry them it is technically possible to ...
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8 votes
4 answers
1k views

Why aren't angle-of-attack data sanity-checked before being fed to other aircraft systems?

For most fixed-wing aircraft, accurate angle-of-attack information is utterly essential for safe flight, due primarily to the risk of stalling the aircraft if the AoA of one or both of its wings ...
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39 votes
7 answers
8k views

What prevents a commercial jet from electronically "resetting" the way a computer sometimes does?

I've had a fear of flying for the past several years and one of the ways this irrational phobia manifests is concern over the airplane power-cycling in mid-air: engines cutting out, control equipment ...
7 votes
6 answers
4k views

Has a commercial jet airliner ever stalled on takeoff / at low-altitude?

In general aviation, a common reason for fatalities is low altitude stalls on takeoff or practising go-arounds. Has there ever been an incident where a commercial jet airliner stalled on takeoff / ...
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19 votes
3 answers
4k views

Why are propellers de-iced before the engines are started, and does ice on the fuselage affect the flight characteristics of the plane?

I recently flew on a flight out of Montreal on a DHC8 turboprop. The plane had been parked at the airport overnight during a winter storm, and as I walked out to the plane, there were visible icicles ...
9 votes
1 answer
440 views

What safety rule replaced the now-rescinded two-person rule (after Germanwings 9525)?

In the aftermath of Germanwings 9525 in 2015 many airlines instituted a two-person rule for the cockpit (aka "two-man rule") - with a flight-attendant replacing whichever pilot left the flight-deck. ...
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-5 votes
1 answer
179 views

What is the procedure for a fast landing that is too slow for go-around? [closed]

Say an aircraft (A320 or similar) on landing, hits the tarmac way too fast and on a short runway, less than V2 but around V1 or slightly over. This could happen if a pilot had recently moved from ...
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4 votes
1 answer
1k views

Who would be allowed to operate with no navigation lights over a populated area?

I know little about aircraft, FAA or FARS, but I've tried to research something I saw one evening without much success. I was hoping an expert could chime in. One evening, while watching for ...
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19 votes
2 answers
11k views

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 ...
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25 votes
5 answers
15k views

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 ...
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13 votes
3 answers
2k views

Is there any obvious warning when auto-pilot is disengaged or when the mode changes?

Under the investigation section of the First Air Flight 6560 incident, it describes the catalyst for the accident: The approach was entirely flown on autopilot, which was correctly set to capture ...
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4 votes
4 answers
820 views

Is Turn and slip indicator a good back-up for the attitude indicator?

I was reading my Aircraft general knowledge book, and noticed something peculiar that was written. The book described that the turn and slip indicator works as a back-up in case of a malfunctioning ...
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2 votes
1 answer
545 views

Why are the VHF and UHF airbands directly adjacent to frequency bands used by vital radionavigation aids?

Of the three main frequency ranges used by aircraft for radio communications (HF, VHF, and UHF), two (VHF and UHF) have their aircraft-radio-communications frequencies clumped together into a ...
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0 votes
1 answer
63 views

Time of flying from Toronto to Philippines [closed]

Please I would Like to know how many hours I will be flying Across the ocean . I will be flying on an aircraft 773 boing 777.
0 votes
2 answers
113 views

Is potentially dangerous to select the take-off power on airliner lower that temperature at the moment on the airport? [closed]

Is potentially dangerous to select the take-off power on airliner at lower settings value due to the temperature that could be increased by the time the aircraft will go up?
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1 vote
2 answers
6k views

Why do pilots wait for a positive rate to put the gear up, When V1 means “commit to takeoff”?

To explain further, V1 means they cannot stop in time if anything happens. Therefore they must commit to taking off. So why wait for a positive rate? Shouldn’t it be retracted as soon as they see a ...
24 votes
8 answers
8k views

Are there any real life instances of aircraft aborting a takeoff or landing to avoid a vehicle?

I came across a fake video of an A380 closely avoiding a fuel truck. More details at Snopes including a link to the YouTube video. While this video is not real, I'm interested in finding out if it's ...
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23 votes
1 answer
4k views

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 ...
2 votes
1 answer
180 views

How long is maximum time to investigate an airplane crash?

Lion Air flight 610 was crashed on 29 October 2018. It was Boeing 373 Max 8. Almost one year ago. I have not heard any news from National Transportation Safety Committee (NTSC) when they will release ...
4 votes
2 answers
173 views

How can the effects of hot corrosion and salt deposits from sea water spray in gas turbine engines be negated/prevented?

In aircraft operating in a maritime environment, corrosive effects from salt water are common. Are there any specific coatings used in engines for such aircraft? If so, which are they? How frequently ...
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15 votes
3 answers
2k views

Where does the 90 seconds limit for plane evacuation come from?

New airplanes have to confirm that all passengers have to be evacuated within 90 seconds or they wouldn't be certified by aviation authorities. But where does the 90 seconds limit come from? Why isn't ...
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8 votes
4 answers
2k views

Which altitudes are safest for VFR? [closed]

As a fairly new pilot who does a fair amount of x-country flying I find myself "feeling" safer going East at 5500 and West at 6500 happily burning extra fuel to get up there. Listening to the on route ...
1 vote
3 answers
584 views

Is it safe to fly with a B737-800? Is it different from a B737 Max 8? [duplicate]

I'm flying from Costa Rica to Chile in November with a B737-800 plane. I'm wondering if this is a different aircraft than the B737 Max 8 or if it's the same?
13 votes
1 answer
5k views

Why does Canada recommend a minimum rate of climb for ultralights of 300 ft/min?

What is a safe minimum rate of climb for ultralights? I understand most ultralights climb at least 300-800 ft/min and in fact the Canadian ultralight specs recommend a minimum rate of climb of 300 ft/...
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3 votes
0 answers
396 views

How fast is it safe to eject from an F-16? [duplicate]

What is the limit of the ACES II for the F-16, in terms of altitude and airspeed for safe ejection? The following video tells the story of an F-15 pilot who ejected at supersonic speed and barely ...
5 votes
1 answer
547 views

Is this WWI movie scene realistic?

In a poignant scene of 1933 WWI film The Eagle and the Hawk (not to be confused with the same-name 1950 western film), while the pilot played by Fredric March performs a loop-the-loop in his – I ...
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4 votes
1 answer
661 views

Why do some U.S. airlines require passenger headrests to be lowered during takeoff?

I've experienced a few times recently where cabin crew have asked passengers to lower their adjustable headrests during takeoff and landing and, in at least one case, it was even part of the pre-...
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12 votes
2 answers
1k views

What are the ejection injury and fatality rates?

Most of us have probably heard about how ejecting from a military aircraft is dangerous in and of itself, and that ejection is not a get out of jail free card. The most common dangers seem to be: ...
2 votes
0 answers
120 views

Aeroplane protection against lightning strikes [duplicate]

I would like to know what kind of protection are available on planes against lightning strikes.
21 votes
7 answers
11k views

Can two aircraft be allowed to stay on the same runway at the same time?

My understanding is that the runway should always be cleared, and occupied by no more than a single aircraft for takeoff and/or landing at any given time. Is there any scenario in which ATC can ...
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4 votes
4 answers
1k views

Is it possible to hack an airplane while it's moving (in general)?

I recently searching Airbus Careers section, and I can say that I saw too many Cyber Security job positions. It was saying in the job description that there is a need of having knowledge about ...
5 votes
1 answer
308 views

Why do they tell you to tie your lifevest on the left side during safety briefings?

This might be UK specific, given I have only been flying internally recently. During the safety briefings, when describing how to inflate the lifevest the instructions are always: "Wrap the lines ...
13 votes
2 answers
4k views

Is it allowed and safe to carry a passenger / non-pilot in the front seat of a small general aviation airplane?

Is there anything wrong with taking a friend in the copilot's seat of a small general aviation aircraft with me flying, or does he have to sit in the back (if there is one)?
7 votes
4 answers
443 views

What accidents have had crew accustomization to warnings among their causes?

A non-answer on this question claimed that: the idea that maneuvering with the stall warning activated will somehow damage us, causing us to ignore its warning when the chips are down and AOA is up,...
1 vote
2 answers
290 views

Is "hacking small planes" a separate or larger problem from/than general small-aircraft security?

Apparently the DHS has issued a "hacking alert" for small aircraft: The alert warns if a hacker gained physical access to certain small planes, they could attach a common device to its wiring. This ...
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1 vote
1 answer
332 views

Is this plane safe to fly on? The turbine blades look damaged [closed]

While waiting for a recent flight, I observed this aircraft with what appear to be rather worn turbine blades. Is this close to being a safety issue or is it purely cosmetic?
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