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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1answer
40 views

Can I do QAR files readouts locally? [closed]

I have access to Quick Access Recorder files (.dat, .rec binary files) from the Flight data recorder. I would like to make the readout locally if possible. There was an interesting question What is ...
3
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1answer
126 views

What exactly does "exercise extreme caution" mean when seeing alternating red and green light gun signals?

I've seen the light gun signals chart a hundred times but I don't quite understand when it says "use extreme caution" when you alternating green and red signals. What does that mean exactly? ...
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2answers
509 views

How do fighter jets pre-flight so quickly?

Military fighter jets can get in the air and to their target in minutes and faster than almost all other aircraft. How do they achieve this considering that a normal pre-flight alone takes ~10-15 ...
6
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2answers
486 views

How to get out of icing conditions asap?

We all know certain weather can cause ice to form on an aircraft, and the danger it poses. Obviously the best way is to avoid flying near these areas in the first place. Let's say I happen to fly ...
4
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2answers
178 views

Do large cities contain enough iron to significantly affect an aircraft's magnetic compass?

In most areas of the world, the magnetic compass is the ultimate heading reference. Although pilots look to the directional gyro most of the time when flying (because the directional gyro's reading ...
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6answers
6k views

Do airplanes really expose their internal wires and electronics like this on the wings when braking?

While watching a video today about airplanes and how they have little thingies on their wings to make them come to a stop much quicker than otherwise, I noticed something very odd: Are those cables ...
22
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4answers
4k views

Did DB Cooper's aircraft land safely with the aft stairs open?

I've never seen a 727's aft stairs open, but presumably, based on an Wikipedia image and common sense, they do reach the ground when the aircraft is on the ground. Furthermore, (as I understand it), ...
2
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1answer
983 views

Are evacuation slides meant to be used as safety boats?

What are design considerations and usage procedures for these slides in case of some successful water landing? For instance, are they meant to be detached from the fuselage at some point? Or ...
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1answer
153 views

Why didn't ejection seats become a thing in civil avation and only limited to military? [duplicate]

Recently, an Indian CDS Bipin Rawat and his family as well as eleven members of the Indian Army died in an helicopter crash. You can find the story here. I did look at any questions asked on the topic ...
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2answers
282 views

With supplemental oxygen, what altitude can a pilot safely operate at?

Will there be operating limitations regarding ascent or descent speed to avoid decompression sickness? What altitude will require a pressure suit?
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2answers
2k views

How much more dangerous is it to fly in Mexico than Europe?

Recently, Mexico's air safety rating was downgraded. How much more dangerous (in terms of statistical chances of fatal accident) is it to travel with a Mexican airline, than a European one?
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1answer
174 views

What measures are there at Vancouver International Airport to prevent wild animals from entering the airport?

This video shows a wild coyote on a taxiway at Vancouver International Airport (CYVR): I ask from the standpoint of safety, and menace to aircraft. Does CYVR lack ...
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1answer
249 views

Is there a procedure for canopy static discharge before the pilot egresses from the cockpit?

Is there a procedure for canopy static discharge before the pilot egresses from the cockpit?
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8answers
5k views

Minimum number of runways required for international airports?

What is the minimum number of runways required for an International Airport to be operational - commercial aviation? Would two runways suffice?
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2answers
1k views

Do commercial aircraft carry personal weapons?

Even though airport security is very strong nowadays, commercial flights are still at risk of hijacking. Alternatively, passengers (perhaps mentally distressed) could provoke damage to crew, ...
6
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3answers
3k views

How does the safety record of the twin piston Diamond DA-42 compare to the single piston DA-40?

Its fairly well known that the Diamond DA-40 has one of the smallest fatality rates of any GA plane. The Diamond DA-42 is a twin engine aircraft with a very similar design to the DA-40. Now, it has ...
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2answers
3k views

Why is the takeoff decision point based only on speed and not time or distance?

The go/no go decision on takeoff for airliners is calculated as a V1 speed. The question is, why is there no time or distance for V1 calculated. In other words, if we don't reach V1 in X seconds or by ...
21
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3answers
8k views

Why do commercial helo pilots wear helmets?

I've been on my fair share of commercial helo rides, primarily in Canada. Over the course of more than ten rides in three different kind of helos (Bell 407, 412, and I think one other) there was only ...
54
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9answers
36k views

Why don't pilots parachute from small planes that are in distress?

There was another question that asked why commercial flights don't have parachutes. The almost ubiquitous response was that the parachutes would be useless because: Most accidents with commercial ...
3
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1answer
251 views

On a Gulfstream jet checklist, do you do the walkaround before or after disengaging the gust locks?

On a Gulfstream jet checklist, do you do the walkaround before or after disengaging the gust locks? With small planes we generally remove the gust locks as we do the walk around, but with a larger jet ...
26
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6answers
8k views

What is the difference between a flow and a checklist?

Use of checklists is a 'special emphasis area' during FAA private and commercial checkrides but there are a lot of comments in pilot forums about using flows instead, often - but not always - in the ...
4
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1answer
904 views

What is the proper protocol in the US regarding abandoned aircraft not deemed safe to fly? [closed]

Security forces in Guatemala detected a plane entering airspace on 4 Nov 2021. They followed through and found it abandoned, with evidence that it transported illegal drugs. After an assessment by ...
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2answers
6k views

How likely could there be a loss of cabin pressure?

You often on commercial aircraft (whilst on the ground to the runway) hear on the safety video: in the event of a loss of cabin pressure, oxygen marks will be released from the panel .... What ...
5
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2answers
871 views

Is there a framework for inter-country rules enforcement?

I have a US pilot's license and if I do anything foolish or infringe an important rule while flying in the US, the FAA can take action such as order more training, suspend my license for a while, or ...
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1answer
229 views

How is the radius of the danger zone marking for engine inlets calculated?

Does the radius (shown below) take into account smaller objects (FOD), or only people? How is it determined? Source: Facebook
21
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4answers
6k views

Is it legal to take off from the road?

Specifically, I'm referring to the takeoff attempt which led to this crash (video here). This took place on highway 124 in Winnie, TX. Apparently the aircraft had just finished serving as a float in a ...
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2answers
387 views

Why are gliders oftentimes not equipped with a transponder?

Oftentimes gliders are not equipped with transponders (at least in Europe). Even if they are, they do not necessarily operate it at all times. This is allowed by SERA.13001: (a) When an aircraft ...
26
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4answers
7k views

Is it a flight violation to mishear ATC instructions for exiting the runway?

I was on landing rollout and misheard a tower "turn off at xxx switch ground" call. We read back the incorrect taxi way and turned off there and switched to the ground frequency. After our incorrect ...
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3answers
389 views

Why don't [most] sailplanes use whole-airplane / ballistic parachutes?

My understanding is that sailplanes usually have the pilots wear the parachute on their back, requiring the pilot to bail out of the aircraft before they can use the parachute. Given the maturity of ...
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4answers
411 views

Are there statistics showing the relationship between safety and the age of aircraft?

Some people seem to believe that some airplanes are less safe to fly just because they are older than others. As a pilot myself who has learned that the safety of aircraft is nothing to do with their ...
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1answer
2k views

Are there any guidelines on airframe age and metal fatigue in light aircraft?

Are there any guidelines or rules of thumb about when airframes become affected by metal fatigue? More specifically, is something like a 1950s vintage Cessna still safe, or should I be worried about ...
2
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0answers
63 views

Have airlines average fleet age been shrinking?

I had read somewhere that nowadays Average age of Airlines is shrinking. I do not know how much of that is true. I did see this - https://simpleflying.com/airlines-youngest-fleets/ On the other hand, ...
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1answer
2k views

How do I request a frequency change to listen to ATIS?

If I only have one radio, and I'm using VFR Flight Following, what do I tell ATC when I want to pick up ATIS for the landing airport before I'm told to contact the tower?
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3answers
5k views

When did airlines start using seat belts for passengers?

When did airlines start using seat belts on passenger flights?
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0answers
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Marshall signals history

When were airport marhall signals used for the first time? What is the history of these signals? Thank you
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3answers
4k views

What does the expression "Normally with hull loss" mean?

This is a question from a non-english speaking person. I encountered the expression "Normally with hull loss" in this safety categorization: (image source: EASA CS-25) Why is that not only &...
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1answer
190 views

Should a runway overrun be expected if takeoff is begun with one-engine-out?

Multi-engine aircraft have enough power to successfully takeoff if one engine fails after V1. But what if, on a runway equal to the specified takeoff distance, someone decided to roll with one engine ...
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2answers
4k views

Is it safe to carry bear spray on a GA plane?

I'm aware that bear sprays are normally banned from commercial flights, including in checked bags. As I'm not sure of the reason behind that, I'm in turn unsure of whether it's wise to have some with ...
6
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1answer
1k views

Why is the Auto GCAS system on F-16s limited to only 5G?

The automated ground collision avoidance system (Auto GCAS) on the F-16 is set up for only 5G's. If the system predicts an imminent collision, an autonomous avoidance maneuver—a roll to wings-level ...
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1answer
221 views

Is there a standard for required repainting of worn runway markings? In USA

Is there an FAA regulation or advisory circular covering the allowable wear, fading, or weathering of runway markings? I can find many FAA standards for the paint of fresh new runway markings, but I ...
3
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1answer
84 views

In big transport jets, what is the difference between manoeuvring loads and gust loads?

In the design certifications for big transport jets, there are two factors that must be met in order for a new aircraft to be certified; manoeuvring loads, and gust loads. Why are these two separate ...
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2answers
439 views

Is there evidence that inattention to Flight Attendant safety briefings increases risk to all occupants?

So many passengers pay little or no attention to the Flight Attendant safety briefing (or Safety Briefing cards) given prior to takeoff (commercial air carriers). Question: Are there any data, ...
4
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0answers
293 views

Why hasn't there been a case of an airliner breaking apart and crashing due to turbulence in the past 40-50 years?

Most of the breakups involved clear air turbulence as well, the type that still can't be detected today. Examples like: Boeing 707 (BOAC Flight 911) - which crashed near Mt Fuji BAC One-Eleven ...
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4answers
3k views

Why is not every airplane equipped with 3 angle-of-attack sensors?

For critical systems, redundancy is built into the system. It is common knowledge among designers/architects to have three different inputs so in case one is faulty, input from the remaining two can ...
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0answers
119 views

Why was the minimum turbulence intensity that commercial airliners have to withstand increased?

From 50 fps turbulence intensity at VC to 90-100 fps turbulence intensity at VC. The amended FAR design criteria was introduced in 1980 or 1981 for commercial airliners. What prompted this change?
2
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1answer
242 views

What is the minimum runway surface friction coefficient?

After calculating the friction coefficient for an asphalt runway pavement through a test, how to know if it’s acceptable or not? In other words, hat is the lowest acceptable value for friction ...
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1answer
152 views

Why do planes not employ a non-technological banking indicator? [duplicate]

I apologise if this is a very daft question with an obvious answer. I've been enjoying Air Crash Investigation episodes and there have been a few where the pilots, through differing training or faulty ...
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1answer
321 views

Has a passenger's consumer electronic device ever actually caused a crash?

Most of us are familiar with the standard warnings and regulations against passengers using electronic devices (at all during takeoff and landing, and in some cases throughout the flight). This is ...
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2answers
397 views

How do flight crew train/demonstrate ditching evacuation?

In case of evacuation, flight crew can train and demonstrate their ability with a real plane and test passengers. However; how can one be trained in case of ditching ? Obviously, it would be quite ...
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4answers
10k views

Do Flight Simulation Instructors stop the simulator before a simulated crash?

There has been quite a lot of debate in healthcare simulation communities around whether or not to allow a simulated patient to die during training because it might negatively impact the intended ...

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