Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [safety]

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

15
votes
1answer
4k views

What is the difference between fail-safe and fail-soft?

I have heard the following terms related to safe system design but I cannot really see a difference between fail-safe and fail-soft (graceful degradation). To get a common understanding I will just ...
6
votes
2answers
907 views

How low can a helicopter fly over the water with boats below?

My friend was paddling in a big race in Dana Point, California and she said the helicopter was directly over her taking pictures to sell. It looks to be at no more than fifty feet above sea level (if ...
2
votes
0answers
60 views

What kind of batteries are allowed to be transported? [closed]

I am based out of India and I have to send two mobile phones along with batteries to Japan. I thought of sending it by DHL. This link gives information about regulations regarding the batteries. ...
9
votes
1answer
394 views

If cabin lights are dimmed during night landing so that your eyes will get used to the darkness, why do they let you use the reading lights?

Everytime the question of "why do they dim the lights during night landings" pops up, people say that it's to make passengers' eyes used to the darkness if an evacuation is needed (see: Why are the ...
34
votes
7answers
11k views

Is a helicopter ride unsafe for young children?

Recently we were in London and noticed how so many helicopter rides were there. While booking a ride I found out that they do not take a child under 4 years of age, none of the Heli ride companies I ...
19
votes
3answers
802 views

Do (or can) pilots observe religious fasts when flying?

This question is about religious fasts like the Muslim Ramadan and others. Is there a civil aviation regulation about this? Must a pilot eat and drink by the regulations (or abstain from flying), or ...
2
votes
1answer
180 views

Is it okay to use magnetized tools on airplanes?

Let's say you stored your tools on a magnetic organizer in your toolbox, such as the one pictured. Now you go and use a socket or wrench that is slightly magnetized. Have you done wrong?
2
votes
1answer
286 views

Where is the toilet smoke detection indication displayed for a B777-200/300?

In case of smoke detected in any of aft toilet of a B777-200/300, where is the indication displayed? Is this at a single location, or at different locations?
15
votes
2answers
2k 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 ...
-3
votes
1answer
317 views

Why the safety of airplanes have not been developed long time ago? [duplicate]

I have a question about the safety of airplanes. since I was a kid the first time I flight by airplane they have the safety which is a belt and yellow thing that puts into your mouth when a problem ...
3
votes
1answer
531 views

Why are the transition altitudes/levels different around the World?

I got tasked by my instructor pilot to find out why each country has a different transition altitudes / levels. For example in the US it's FL180 and in Saudi Arabia it's FL150. Can someone help me ...
9
votes
2answers
437 views

ATC interruptions, when is it okay/overlooked?

Having recently completed my first solo flight, the tower gave me my taxi instructions, and then congratulated me, as my instructor was hanging out in the tower with the controllers at the time. It's ...
6
votes
1answer
490 views

Why is it forbidden to wear glasses when leaving the plane during an emergency?

On my last flight with Iberia I noticed in the safety guidelines that you are not allowed to wear glasses during an emergency. If I have to take off my glasses I would have serious problems seeing ...
5
votes
1answer
218 views

Are there any regulations on who can sit next to emergency exits?

Whenever I fly with Lufthansa, if I want to sit next to the emergency exits, I have to satisfy some criteria such as: Be able to communicate in German or English Be at least 16 years old Be ...
6
votes
1answer
465 views

Are there cases of aircraft moved off runway by pushing them with vehicles?

And now something completely different for Summer holidays. Arthur Hailey was a RAF pilot who wrote Airport, a novel which later was adapted as a movie by George Seaton. The action is said taking ...
4
votes
1answer
2k views

Why does Turkish airlines still fly over Iraq, is it safe?

I realized that Turkish Airlines have a lot of flights over Iraq. For example, here is a flight from Istanbul to Maldives (TK 730). Do you know if it is safe to fly there? Till today I thought ...
2
votes
2answers
174 views

Measuring speed and altitude from personal phone midflight [duplicate]

Given that there is no need now for one to swith off their cellphone midflight, inflight wifi is now a norm and common, Is it possible for me to measure the velocity and altitude of an aircraft using ...
15
votes
1answer
1k views

What level of information does a PIC have about a missile crossing their aircraft route?

Recently North Korea launched a missile out of its national airspace on a trajectory which crossed the route of an aircraft from Air France. The aircraft wasn't in danger at any time, the minimal ...
2
votes
1answer
615 views

Can light aircrafts with no retractable landing gear make an emergency water landing? [duplicate]

In the suburbs of Lisbon today two people were killed because a pilot of a light aircraft (I imagine without retractable landing gear) landed on one beach full of people (it's Summer and the beaches ...
7
votes
4answers
2k views

Is it safe to fly on airplane with lithium batteries in cargo hold?

Lithium-ion batteries have the tendency to go on fire. I checked baggage policy of European low cost carriers (easyJet, Ryanair, WizzAir), and while spare batteries are banned from cargo hold, it ...
7
votes
2answers
1k views

When is flotation gear legally required for pilots and passengers on a non-commercial flight in a small airplane over water?

If I'm renting an airplane to fly myself and some friends over water beyond gliding distance, but within 50 nautical miles from the nearest shore, am I legally required to have any flotation devices ...
3
votes
3answers
245 views

How much FOD hazard can a Styrofoam drink cup pose?

So, the Collings Foundation and their touring warbirds were in town recently, and we went to visit them. While out on the ramp though, my father managed to lose one of the Styrofoam coffee/drink cups ...
8
votes
3answers
3k views

Why weren't the Airbus A330 engines designed with a system to stop their fans?

Why wasn't the Airbus A330 designed to stop its fans (with some kind of 'handbrake')? To clarify, I am specifically talking about the aircraft that flew Air Asia flight D7237. During the flight the ...
48
votes
8answers
9k views

Why don't commercial passenger safety videos ever explain policy instead of dictating it?

British Airways announced and published their new in-flight passenger safety video: I'd like to draw your attention to two pieces of instruction given in the video, ...
-2
votes
1answer
86 views

Where can I find reports of accidents/incindents happened on ground? [closed]

What international organization or website has the information on this topic? I’m looking for reports, statistics and analyses of incidents and accidents (other than those involving aircraft) that ...
8
votes
2answers
565 views

What are the most significant risks to life for the airline passenger?

Suppose that I start taking long-distance airline flights, and that after each flight I immediately jump on to another aircraft that takes off for another faraway destination - and continue doing this,...
4
votes
1answer
273 views

What is the minimum recommended cruising altitude to avoid bird strikes?

I was surprised to see geese flying some 200 ft above my aircraft at 2000 ft MSL. I obviously would like to avoid them but I am based too close to the New York City Class B, where there are much ...
1
vote
1answer
158 views

Are artificial magnetic fields used or proposed to be used to shield high altitude pilots and astronauts from charged, high energy radiation?

If not for the earth's magnetic field our atmosphere would be bombarded by high energy plasma (ionized gas) from the sun and other space sources. At very high altitudes and orbital altitudes this ...
1
vote
2answers
141 views

Other aircraft doesn't apply right of way rules [duplicate]

I was flying VFR a couple of days ago and was warned by ATC that another aircraft was coming from my left to my right. At some point I saw it and we were clearly converging and getting pretty close. ...
16
votes
1answer
1k views

Why is a 0 kt, vertical climb in a helicopter not safe near the ground?

In the "Test Pilot" column in the July 2017 issue of AOPA Pilot, one of the questions was From reader David Franklin: If a given helicopter has a best rate-of-climb airspeed of 60 knots, its ...
2
votes
1answer
295 views

Why does pitot tube freeze at an altitude whose temperature is way below the freezing point?

It's supposed that Air France 447 crashed into the Atlantic because the pilots stalled the airplane when the frozen pitot tubes forced them to handfly it while cruising through the thunderstorm. But ...
-7
votes
1answer
192 views

Why can't we think of mechanism to save people in case of airplane problem? [closed]

Given it is 21st century, why we can't think of mechanism which will save people in case there is problem with the airplane during flight? e.g. so that cases like MH370 don't happen? Is this really ...
0
votes
2answers
360 views

How secure is an airplane on the ground whilst passengers are boarding the aircraft? [closed]

On my recent flight to Ibiza, as I and the other passengers were boarding, there were many occasions where I could see right into the cockpit as the pilots and cabin crew were communicating back and ...
8
votes
3answers
2k views

When did airlines start using seat belts for passengers?

When did airlines start using seat belts on passenger flights?
2
votes
1answer
185 views

Does making a mistake mean you lose your cert?

Disclaimer: I haven't been in, nor do I plan on having an accident. That said, this has always been a question of mine. Let's say I'm flying a little Cessna or ultralight around Ohio. Maybe the wind ...
40
votes
1answer
2k views

Can experts identify the model using this part (FOD prevention purposes)?

We found this part of an aircraft recently and, in order to improve the safety levels at our airport, we would like to know what possible aircraft model (or models) are compatible with this cover so ...
11
votes
3answers
2k views

Was the miracle on the Hudson saved exclusively by the APU?

In the film Sully, (staring Tom Hanks) the APU is switched on straight after both engines rollback, why was this step necessary; Airbus said this was the "15th thing" to do on the checklist. How or ...
6
votes
2answers
484 views

Apart from Kenya, what are the current dangerous / unsafe airspaces?

Notams are regularly released to warn about unsafe areas, e.g. Kenya: A0040/15 - SECURITY .. UNITED STATES OF AMERICA ADVISORY TO U.S. OPERATORS CONCERNING POSSIBLE ATTACKS WITH MAN - ...
3
votes
1answer
490 views

Does Autopilot make planes safer?

Statistically, are planes with advanced autopilot functionality less likely to be involved in fatal crashes? Answer only with actual statistics, not your personal opinion.
18
votes
4answers
8k views

Why do aircraft have two brake pedals instead of one?

Why do aircraft have two brake pedals instead of one? If each pedal controls different sets of wheels e.g. the left wheels and the right wheels of the main gear, is that not a safety flaw given that ...
7
votes
5answers
1k views

Can a human be blown away by jet engines of an A380?

Can a human be blown away by jet engines of an A380 at full throttle? If so what is the largest object that it can blow away and cause significant damage? Can it blow away another parked Airbus A380 ...
9
votes
1answer
955 views

Would an A320 override the autothrottle due to an erroneous radio-altimeter?

The pilots in Turkish airlines flight 1951 had multiple issues with the auto-throttle setting itself to idle during approach: despite manually adding throttle, the plane stalled and crashed before ...
15
votes
3answers
2k views

What is the appropriate fuel tank selection to land a 172?

On a recent checkout on a C172 I was told to select "fullest tank" as opposed to "both" that I have been doing for years. Given the aircraft is high wing (gravity feed) with no auxiliary fuel pump ...
1
vote
1answer
373 views

Why is this 777 zig zagging over the Pacific (and delayed by 2.5 hours in air)? [duplicate]

Why is this 777 (CX 806 on June 6 2017) zig zagging over the Pacific (and delayed by 2.5 hours in air)?
2
votes
0answers
265 views

How to start to get in the field of aviation with degree of Computer Science? [closed]

I am a 3-year computer science student and really want to go into the field of aviation, but not able to figure out what should I do at this point of time so as to have a career in this field.
16
votes
1answer
2k views

What does it mean when a runway's safety area is not standard?

If an airport has a NOTAM that states that a runway safety area is not standard, what does that mean? Here's an example. ...
1
vote
1answer
1k views

What is the requirement for fire fighting equipment on board a passenger flight?

What is the legal requirement regarding fire fighting equipment on a passenger flight, e.g. fire extinguishers and fire hoods? I imagine that the number is proportional to the airplane's max capacity. ...
8
votes
1answer
282 views

How is structural damage to a composite fuselage detected?

When a service vehicle collides with the aircraft, the plastic nature could hide any subsurface fractures which could propagate as the aircraft goes through cycles. How is potential damage diagnosed ...
12
votes
4answers
1k views

How do I remind myself to run in-flight checklists?

When flying a basic light aircraft with no "modern" instrument the pilot needs to remember to do various checks on a regular basis (FREDA every x minutes, change fuel tank every Y minutes etc.). Just ...
7
votes
1answer
182 views

Is AD compliance ever physically verified when maintaining an aircraft?

As we all know around here, national aviation authorities put out Airworthiness Directives mandating certain changes be made to aircraft during their service life so that the aircraft can stay ...