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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111 views

What needs to be considered when changing a tire during boarding/deboarding?

Passenger aircraft tires are physically inspected by the cockpit crew member or technician after each landing or before take-off, that the tire may have been cut or punctured as it may have hit ...
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1answer
80 views

One man push-back

Towberless pushback operation of a passenger aircraft is generally done with at least 2 people. The first person (walk-out assistant) communicates with the cockpit crew members and observes the ...
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0answers
55 views

Are tiltrotor planes less safe than conventional propellor planes?

I got interested in Tiltrotor type of airplanes and was reading up about some specific models, the AgustaWestland AW609 and the Bell Boeing V-22 Osprey. Both planes have a history of quite a few ...
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2answers
107 views

Eviation Alice Powerplant Placement

I saw an article from the BBC about the Eviation Alice this morning that left me puzzled. The design is a tail wheel tri-motor with the power plants located in a pusher configuration at the wing tips ...
46
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3answers
22k views

What is the technique or procedure to disable/disengage the MCAS on Boeing 737 Max 8 & 9 Aircraft? [closed]

With regard to the recent crashes involving the Boeing 737 Max 8 aircraft, where according to preliminary reports, it appears to be related to the MCAS, which is a safety system that pushes the nose ...
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6answers
35k views

Why does the Boeing 737 have 5 x the passenger fatalities of the Airbus 320?

I thought I'd compare the accident rates of these two similar, competing, very successful aircraft. ...
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5answers
75k views

How much is the minimum safe distance between two planes in-flight?

According to FAA regulations, how far should a commercial jet be away from another plane in-flight? How about military planes? They get really close when in formations... Is there a minimum distance?
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1answer
92 views

Is there a Risk of Tail Tipping during Push-back of a passenger aircraft?

I remember that there were countless incidents occurred in which the aircraft sits on the tail as the aircraft was heavily loaded at the back of the cargo and/or cabin compartments or the cargo ...
2
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1answer
261 views

Does a no-touch policy really work?

In Boeing 787 and Airbus 350 aircrafts, more than half of the aircraft body is made of composite material. The composite structure of the fuselage does not indicate the damage when the body is ...
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1answer
331 views

Are there any safety hazards when testing the F-16's fire control radar on the ground?

What are the procedures for ground testing an aircraft's fire control radar - for the F-16 or any other aircraft - and are there safety hazards associated with exposures to humans? Most importantly, ...
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6answers
8k views

What are the ways to keep the birds away from airfields?

I know bird strikes are a major issue for many airports, and that measures are taken to keep birds away. There are some obvious things airports can do like not to have any stray garbage, food, etc. in ...
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3answers
438 views

In modern commercial aircraft, is it possible for pilot inputs to exceed the tolerable structural loads?

It seems that modern fly by wire systems should / could limit pilot inputs to prevent structural damage. For example, American Airlines 587: From the NTSB report of the accident: The ...
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2answers
1k views

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

The pilots of 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 ...
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1answer
702 views

Why is there always a fire truck present before refuelling?

Whenever I fly within Europe, I notice there is always a fire truck present for refuelling before takeoff. Is this standard procedure for every flight in commercial aviation? If yes, is this a global ...
3
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1answer
304 views

Why did this pilot have his single-engine license revoked?

5 minutes into this video, a commercial Indonesian pilot is shown performing a very tame version of a parabolic flight path as performed by zero-gravity flights, in a Cessna 172. This video has over ...
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1answer
93 views

Can I fly a paramotor after learning on a paraglider?

This video has inspired me to spend next week doing a 6 day paragliding course. The only downside is the school near me don't teach paramotoring. Could I buy (and safely use/self-teach) a paramotor ...
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4answers
14k views

How do commercial pilots send distress signals?

If a commercial jet is in trouble, how does a pilot send a signal indicating distress? Does it take long? For instance, behind reception desks in many institutions and executive offices, there's a ...
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3answers
94 views

Is this safety ranking of different aviation methods accurate? [closed]

I'm compiling a list of essentially "Different ways a human can fly" and then ranking them in order of safest to most dangerous. This is my final list, is it statistically (and practically) accurate? ...
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3answers
6k views

How is it safe for helicopters and Ospreys to refuel in mid-air?

How do military helicopters like the Blackhawk and CH-53, as well as the V-22 Osprey, perform mid-air refueling without their rotor blades (periodically and accidentally) contacting the drogue or fuel ...
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3answers
4k views

Are grass strips more dangerous than tarmac?

There are a couple of flight schools near me. One is at a large airport, they use Piper Tomahawks primarily to teach. Naturally, they use well maintained, tarmac runways to takeoff and land. This ...
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1answer
216 views

Is it normal for a Boeing 757 engine to bounce under its fairing?

Earlier this week I was on a 757 flight from SFO to JFK and the right engine was bouncing under the fairing under mild turbulence, and really moving 2+ cm under moderate turbulence. Is that in any way ...
7
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2answers
1k views

Will dual-learning in a glider make my airplane learning safer?

This question got me thinking, would attending gliding lessons at the same time as my airplane training make me safer in a small plane or microlight?
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3answers
870 views

Which is safer? The Piper Tomahawk or the Cessna 152?

I have booked my first flying lesson for 2 weeks time, in my first step to obtain a PPL or LAPL. I had done all of my research on the Cessna family, assuming that is what I would learn in. I was ...
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3answers
3k views

Does Nitrogen inside commercial airliner wheels prevent blowouts on touchdown?

I just watched the first episode of Inside Mighty Machine where civil engineer-turned-host, Chad Zdenek, discussed innovations of the 747. One innovation he discussed was the increased number of ...
7
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1answer
143 views

How can I find out if the FAA has ever sanctioned a pilot?

Is there any easy way to check to see if a CFI or commercial pilot has had past problems with the FAA? The question came to me after an old thread in one of the aviation forums pointed me to this ...
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1answer
138 views

What are the requirements for aircraft marker cones?

What are the requirements on aircraft marker cones (a.k.a. safety cones) according to IATA IGOM-96, i.e. size & weight?
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0answers
53 views

what are some of the effects of breaking the sound barrier? [duplicate]

I have tried googling it, and nothing came up, please help! I am trying to figure out what happens after a jet/aircraft breaks the sound barrier.
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1answer
148 views

Why are inflatable pillows not allowed on board? [closed]

Inflatable cushions designed to ensure extra space that children sleep comfortably between the passenger seats are not accepted aboard by most of the airline companies for they can obstruct evacuation ...
3
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1answer
164 views

Why is it appropriate to announce ‘stable’ on final approach?

I have recently discovered that a budget airlines flight deck in the UK (Airbus 320) announce ‘Stable’ on the final approach. Both the Captain and F.O, just after 500 ft is called out by the computer. ...
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3answers
3k views

Can I get a photo with the pilots?

Could I, as a passenger, get a picture with the pilots in the cockpit before takeoff/after landing? I'm asking specifically about any rules that would deny a passenger into the cockpit. I know this is ...
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0answers
47 views

How are the weights of sumo wrestlers shown on the load&trimsheet form? [duplicate]

Under normal circumstances most airlines use standard weights to calculate passenger weights. Sometimes, passenger groups with different weight than the normal passenger profile can also travel. How ...
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1answer
33 views

How is the load & trimsheet form sent to ACARS?

After the last passengers and baggage are loaded onto the aircraft, the pilot in command is given a form called load & trimsheet which shows the passenger/baggage distributions, total weights and ...
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2answers
232 views

How are insects and arachnids kept out of commercial passenger airliners?

If a commercial passenger airliner were to land in a place infested with insects or arachnids, wouldn't it be dangerous to have those animals enter the aircraft? For example, suppose if mosquitoes, ...
58
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2answers
5k views

Are the instrument panels in the cockpit spill / waterproof?

There are multiple switches and buttons in the cockpit, with different shapes and layouts. Are they spill proof? What if the pilot spills water or coffee on them, will they still function?
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5answers
7k views

Is the seat-belt sign activation when a pilot goes to the lavatory standard procedure?

Yesterday, I took an inter-European commercial flight with a popular budget airline. Before take-off, the captain announced that the First Officer would be taking the entire flight today. During the ...
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2answers
626 views

How was this airline (statistically) never had a fatal incident? [closed]

Ryanair make around 725,044 flights per year. This They have been operating for 35 years, so have accrued around 25,376,540 flights. They have also never had any fatal incidents or even major ...
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0answers
101 views

How should ground crews act to safely extinguish an airliner's brake unit fire?

When the brake unit was overheated and had just begun to catch fire due to excessive braking because of long taxi distance upon arrival, the ground personnel (not firefighters) made the first ...
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1answer
1k views

How common and dangerous are fume events?

I’ve been hearing about fume events where engine oil containing tricresyl phosphate as an additive can leak onto the HVAC packs and enter cabin air. These organophosphate are incredibly toxic and are ...
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0answers
72 views

Can a protective mesh protect engines from bird strikes? [duplicate]

Can a protective mesh be installed on the front of the engines to stop birds from entering the engine and causing damage?
14
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1answer
499 views

Who decided that the Boeing 737 MAX planes that were airborne when the grounding was issued cannot enter and land in EU air space?

On March 12th, 2019, EASA grounded the Boeing 737 MAX series by publishing their Emergency Airworthiness Directive 2019-0051-E (AD): Effective Date: 12 March 2019, 19:00 UTC  [...] ...
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4answers
358 views

Why do aircraft stall warning systems use angle-of-attack vanes rather than detecting airflow separation directly?

Stall warning and protection systems on essentially all aircraft work by using several hinged vanes on the side of the fuselage (usually at least three, and preferably more), which align themselves ...
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5answers
1k views

Would mechanical indicators have helped in the Air France 447 incident?

NB I am not an aviation professional. I saw a documentary about the terrible Air France 447 disaster the other day. I was struck, as were the experts in it, including David Learmount, who's known as ...
14
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3answers
980 views

Could a golf ball damage an airliner?

Question Would a golf ball ingested into an engine, or impacting a windshield cause meaningful damage to a commercial airplane? The scenario below outlines that this is possible, but the principle ...
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2answers
3k views

Is TCAS II required in the US?

I would like to know if, in addition to any MEL requirements, there is any regulation or requirement about having an operational TCAS II while operating in US airspace?
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1answer
180 views

Is there a correlation between airport capacity and accident rates?

This question about the new Heathrow runway increasing flights per day by 700 mentions that this airport (and many others around the world) runs at over 98% capacity. This got me thinking, is there a ...
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1answer
144 views

What can I do if my aircraft type changes last minute? [closed]

I have a flight scheduled for June with a popular, European commercial budget-operator on a 737. I'm sure everyone knows about the groundings of the MAX. However, I'm concerned that the MAX may be ...
16
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4answers
7k views

Are Boeing 737-800s grounded? [duplicate]

I’m flying on a WestJet Boeing 737-800 from Honolulu to Vancouver and then on to Toronto in July, returning on the same type of aircraft in August. Are these aircraft still grounded and are they ...
22
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4answers
5k views

Don’t seats that recline flat defeat the purpose of having seatbelts?

Virtually all first-class airline seats, and many to most business-class seats, recline all the way down, either as lie-flat seats (where the seat reclines to a 180º seatback-seatpan angle, but the ...
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1answer
219 views

Why is a small amount of smooth ice over the top of the wing more dangerous than an accumulation on the leading edge?

According to a Gleim study guide, "Generally speaking, smooth ice on top of the wing is more dangerous than heavy accumulated icing on the leading edge." Is this true? If this is true, why?
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2answers
141 views

Why was the Electra uniquely vulnerable to whirl-mode flutter?

The Lockheed L-188 Electra, notoriously, suffered from early problems with whirl-mode flutter, which caused two Electras to break apart in flight in 1959 and 1960, forcing an expensive redesign of the ...