Questions tagged [emergency]

An emergency is any situation that threatens the safety of an aircraft, the people on board it, or people on the ground.

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Is is possible to land a midsize commercial plane on an Ford Class aircraft carrier?

I'm story-boarding a novel. I'm toying with the idea of contriving a situation in which a midsize commercial aircraft is forced to make an emergency landing on an aircraft carrier. I read here that ...
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Are there any cockpit indications when an engine has separated from the aircraft?

On this answer, there is a comment that asks if there is an alerting alarm of some sort when an engine falls off an airplane. Is there a direct alarm from the engines specifically saying "You lost an ...
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Do a full 360 on engine failure? [closed]

One episode I remember well from my training was a lesson on engine failure. To this day I am still a little uncertain about the takeaway from that lesson, which was by a secondary instructor, not my ...
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What would have happened when the Concorde's low-pressure emergency system brought it lower mid-flight?

My understanding is that the Concorde was equipped with a system that automatically lowered the aircraft to a safe altitude if cabin pressure was lost. I know such emergency never occurred in its ...
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Is is possible to use non-hydraulic fluids in a hydraulic system in an emergency?

In this answer, Ralph wrote: Spare fluid is common enough to have on-board to replenish the resevoirs. After reading that, I recalled an incident I was told ...
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Should “mayday” be preferred over “SOS” in an emergency?

I was asked about the difference today. The only difference I know is that mayday doesn't appear in the exams ( like the SOS parts of the book, you get the joke? :) ). I also found the difference in ...
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1answer
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What is this protrusion on the door?

There's something below the door on almost every commercial aircraft. What is inside that box? The protrusion can be seen from the interior of the aircraft. Source
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1answer
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How should flaps be used during an emergency landing (PPL)?

I'm still doing my PPL, but one question has puzzled me recently. During an internal exam before my first solo nav on a C150, the examiner pulled the throttle, so I would do a simulated emergency ...
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Has Air Traffic Control ever had to talk a first time pilot through a landing due to an emergency?

This question deals with the plausibility of the Hollywood cliché of a passenger on a commercial jetliner landing a passenger plane. My question is related but broader, and less hypothetical: Has ...
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Would a 19,000 ft descent in 6 minutes feel noticably different to passengers?

In July 2008 a Qantas 747 suffered decompression at 29,000 ft and the pilots then descended to 10,000 ft in the space of six minutes . More details here : wikipedia.org/.../Qantas_Flight, 30 . I'm ...
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In an emergency situation just after take off, is fuel dumping useful?

Imagine a hypothetical scenario where a jet heavily loaded with fuel experiences more than one engine failures after $V_{1}$. Then I suppose that losing some weight would be beneficial since the ...
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What details do EICAS systems provide?

I was reading this article about EICAS: Engine-indicating and crew-alerting system (EICAS) includes instrumentation of various engine parameters, including for example revolutions per minute, ...
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Do I have to declare an emergency if I cut into fuel reserves?

In another question, I wrote You only need to plan for regulatory reserves. You don't actually have to land with them and @Jan replied: you have to declare emergency if you do cut into them though ...
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How can cargo be jettisoned from a C-124 in flight?

I was reading about a C-124 that was carrying three nuclear weapons over the Atlantic, and developed engine trouble. The article said that two of the weapons were jettisoned into the ocean for safety ...
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What is the optimal bank angle to accomplish a given turn in a glide?

For an aircraft in a glide, what—if any—is the optimal bank angle to make a given turn while maximizing glide distance and maintaining published best glide speed? In other words, at a constant ...
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What are the ways to burn fuel faster in case of emergency without fuel dumping system?

In many cases, the maximum landing weight of an aircraft is lower than the takeoff weight due to the amount of fuel it carries. While some aircraft have fuel dumping systems, others like the A320 ...
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Why burn fuel at departure airport instead of flying to destination before emergency landing due to deflated tire?

A Southwest airliner recently had an issue where a "deflated tire indicator" showed on one of the landing gear tires after takeoff from Oakland, CA. They circled nearby for 4 hours while burning off ...
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What happens if an aircraft declares an emergency while there is another aircraft ahead cleared to land?

Lets assume this situation: In a controlled airport, two aircraft are approaching for landing. #1 is about to touch the runway (let's assume it is within 1~2 miles from touch zone). Then #2 declares ...
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Is there a procedure for landing on an aircraft carrier when the tailhook fails to deploy?

When landing on aircraft carriers, a tailhook is used to snag one of the cables on the carrier deck, which slows the aircraft. When the landing gear fails to deploy I have seen it is possible to make ...
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Is there a universal departure recovery procedure?

Let us say you're in a non-fly-by-wire tactical aircraft (say a F-15 or an A-4) doing maneuvers in the local MOA, and you manage to depart the jet in some non-spin fashion. Is there a standard ...
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About how much drag does a non-operating engine create?

I think the drag of the engine is high, for most type of engine, e.g turbo fan, jet, ramjet... I guess the engine's drag is worse than a flat plate of the same area perpendicular to air stream because ...
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emergency and/or 7700 squawk database or API? [duplicate]

Is there an API or some database somewhere of aircraft that have squawked 7700 (emergency). Where do mobile apps like FlightRadar24 get their notifications form? I'd like to monitor when flight to/...
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Is it possible to control an aircraft on the runway if the nose gear collapses?

I have read and seen some articles in which, for various reasons, the aircraft's nose gear collapsed after landing during the roll out. This resulted in the aircraft going off the runway. Is it ...
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Should I open a door or window when there is smoke in the cockpit?

Let's say when flying, I encounter smoke and the smell of something burnt in the cockpit. Should I open the door or a window to clear the smoke? My thoughts: the smoke may be toxic; opening the door ...
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Can an aeroplane ever be so far away from an airport that it cannot land? [duplicate]

Hypothetically, if an aeroplane with two engines is flying over the ocean and is far away from land, is it not quite likely (but still not very likely at all), that one engine fails and it cannot get ...
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Do crews look for “Dr.” on a passenger manifest to identify medical doctors?

With many airlines, when a passenger buys a ticket online, there is a space for them to select a "title", such as Ms., Mr., Dr., Rev., etc. In most social circumstances, the title "Dr." is ...
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What conditions cause the gear-up warning to sound on a Bombardier DASH-8?

As the title says, what conditions cause the gear-up warning to sound on a Bombardier DASH-8?
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How do you cope with an asymmetric flap extension?

How do pilots cope with an asymmetric flap extension? What are the procedures for this type of occurrence which I suppose are similar on all aircraft?
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If an Osprey found itself unable to rotate its engines to vertical, what would be the emergency procedure for landing?

Let's say an Osprey appears to be flying normally in forward flight. In preparation for landing, the pilot tries to command the engines to begin tilting to vertical, but nothing happens. What now? If ...
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If a helicopter's tail rotor fails, is it possible to perform an emergency landing?

In the event of a total failure of the tail rotor, is it possible to maneuver a helicopter to an emergency landing spot that is within, say, 30 minutes flying time? What are the maneuvers required ...
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Are transponder codes 7701 - 7777 ever used?

I understand that blocks of transponder codes are assigned to different area controls. I am curious if the block 7701 to 7777 is in use anywhere? Maybe the emergency code 7700 needs some extra ...
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How can an airliner have low altitude stall recovery?

I was going through the air crash record and found out that a lot of them happened when the aircraft stalled at a low enough altitude where the pilots couldn't get enough speed to pull back out. I was ...
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Where does the oxygen come from in the deployable breathing masks? [duplicate]

I don't know what they are called. In case of emergency like smoke they deploy, but where do this oxygen come from.
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1answer
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In an emergency, how much runway does an A320 need to stop safely?

From time to time I land at Wellington Airport in an A-320. The runway has sea at either end and is 2,081m (6,827ft) long. There's never been a problem but I find landing there a bit nerve wracking ...
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Pilot passed out in a small GA plane. What can a passenger do?

There is another question about airliners and if someone not qualified could land them. My question is about the steps I should take to stay alive in a small GA plane. Let say a friend of mine ...
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Is there a maximum airspeed to deploy a ram air turbine?

Is there any airspeed limit for deploying a ram air turbine? Can airspeed be determined from the rate of its propeller rotation? Could that data be used to determine altitude?
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What will air traffic controllers do when radio contact is lost?

When a pilot loses radio contact with ATC, there are standard procedures to follow, e.g. squawk 7600, observe the traffic pattern, observe the red / green light gun. On the other side, if a ...
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1answer
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What is the Extent of the Emergency Authority of the Pilot-in-Command (FAA)?

When writing an answer to this question regarding flight deck access during flight, I mentioned the authority of the PIC to deviate from regs as necessary for safety purposes, citing the usual FAR, 14 ...
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Why are airport firetrucks painted yellow green?

In my city, most of, if not all of the fire-trucks that serve city emergencies are red, just like this one: But every time that I see an airport emergency that requires the fire-fighters, I see this ...
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What options would Qantas Flights 7/8 have in case of emergency?

Route For Qantas 7&8 As this route shows, once the flight exits SYD, then all it has nearby is just the great pacific ocean. In such a situation, if it hits some emergency, what all options would ...
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1answer
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Is emergency floor lighting fluorescent?

I just read this question (about emergency lighting) for which nobody highlight the title mention fluorecence. As this lighting's requirements include operability with failure of normal electrical ...
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Why are there so many 7700 squawks?

I installed an app some months ago, which gives a push message when an aircraft squawks 7700. The first time it happened, I thought the plane was about to crash, ...
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How to reduce altitude in a passenger jet without gaining forward speed in an emergency?

Assume the pilot is flying too fast and high for an emergency landing. What movement of the control surfaces must they apply to land the aircraft safely on the runway? I heard this type of manuever is ...
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What would happen if a Russian TU-95 had an engine failure or other emergency close to the United States?

Russians often fly the Tu-95 for long distances, in some cases reaching the California coast. What would happen if they had an engine failure or another emergency Considering the aircraft's age, an ...
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In an emergency, can an airliner land at Pyongyang or another North Korean airport?

If a flight was, say, en route to Seoul, but could only make it to the closest available airstrip and that was Pyongyang, would that be allowed? What would they be met with on the ground?
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What is the probability that passengers can survive a ditching in a 747 at MTOW?

Let's suppose a catastrophic EFATO has occurred while climbing out of JFK from Runway 31L, the aircraft is at its MTOW and the best option is to set it down in Jamaica Bay. How long would the ...
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How much damage could a landing gear malfunction do?

How much damage could a total landing gear malfunction do to an airliner? Could the runway wear a hole through the plane?
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If the landing gear is stuck in an airliner, can the crew go down and manually open it?

There are several instances where we see the landing gear getting stuck before landing. In these kind of situations, can the crew, or one of the pilots, go down to the landing gear area and solve the ...
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Is there a list of aircraft which squawked 7700?

Is there an accurate and updated list of aircraft which squawked 7700?
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What constitutes an “emergency” in flight procedures?

In reading through the more informal literature (Wikipedia, FAA PDFs, Av.SE), I often come across a caveat to standard flight rules and procedures: "unless an emergency exists". The intention is ...

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