Questions tagged [engine-failure]

An engine failure occurs when one or more engines on an aircraft stop functioning normally. This is often assumed to mean a complete loss of power from the engine, but partial power loss and excess power are also engine failures.

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9
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3answers
1k views

Does engine failure shut off the auto-pilot?

After answering this question it got me wondering whether there can be a situation where a complete flameout of engines could cause a serious loss of control if the auto-pilot were to continue to try ...
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Is there any legitimate reason for adding momentary power when descending at idle with full carburettor heat on?

Scenario: While demonstrating a simulated engine failure emergency landing a flight instructor puts on carburettor heat and reduces the throttle to idle of a small single engine Cessna. After a couple ...
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Is it common for a cold reciprocating engine to stop at idle?

The other day I started the engine of a PA28 and put it at 1200 RPM as per the checklist but the sound didn't seem right - so I tried each magneto and the power dropped a lot on one of them. I then ...
8
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1answer
712 views

How dangerous would it be to start a jet engine with coins inside?

With the multiple stories in the news of people throwing coins into a jet engine for good luck, I couldn't help but wonder how dangerous it would be if the act went unnoticed and the crew started up ...
3
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1answer
211 views

if your Seneca weight is 4000 pounds , and you have 800m visibility, would you take off? [closed]

An examiner asked me if your Seneca weight is 4000 pounds , and you have 800m visibility, would you take off ? I said by law the visibility is ok but still I would not because if we get an engine ...
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Why should a Piper Seneca not take off after an engine failure below 100MPH?

In the Seneca (PA34-200) AFM, in the ENGINE FAILURE DURING TAKEOFF section, it is noted that if engine failures occurs during takeoff ground roll and 100 MPH has not been attained, the pilot must ...
4
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1answer
269 views

How is health monitoring of large aircraft engines and components done?

How is online (in-flight) and offline (between flights) health monitoring of large aircraft engines and other essential components done? As far as I have been told, there are a lot of measured ...
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1answer
257 views

How dangerous would it be to take off at night with no ATC, no runway lighting system and have a single engine working?

I was wondering how dangerous it would be to have an engine failure (with a twin-engine) during take off at night when you have no runway lights (and no city close-by) and no ATC? Would using the ...
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2answers
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How common is engine failure?

What are the failure rates for piston, turbine, and jet engines? (If more subdivisions of "engine" are necessary to make the data useful, please point them out).
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0answers
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What is the glide ratio of a DA42?

I was looking for the best glide speed of a DA42 with both engines out, but it seems it's not in the POH. In the emergency checklist, it only mentions a speed of 85 knots to maintain on final approach ...
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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 ...
3
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2answers
340 views

Why use a single engine plane instead of a multi engine one for a long range flight record?

Tupolev ANT-25 was designed specifically for setting flight range records. In 1937 two flights from Moscow, Soviet Union to USA via the North Pole happened - one covered 9130 kilometers and finished ...
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How do helicopter pilots practice auto rotation?

How do helicopter pilots practice auto rotation, and specifically, the landing phase? Timing the flare as ground is approaching seems critical to a successful auto rotation landing. Yet I can't ...
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6answers
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Can the APU provide emergency thrust?

By David Monniaux (Own work) [GFDL, CC-BY-SA-3.0 or CC BY-SA 2.0 fr], via Wikimedia Commons Many larger airplanes have gas turbine APUs (auxiliary power units). It seems that their exhaust is ...
5
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1answer
653 views

Triple engine failure; which would you choose to keep left?

It is well known that planes with two engines must be able to land with one engine inoperable for their certification, and that four engine planes with two inoperable. Now, suppose you had a four ...
4
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1answer
943 views

How long does a non-ETOPS flight need to be able to fly in an one-engine-out situation?

Let's say that you're in a 737, mid-cruise in a non-ETOPS situation, and you lose one engine. Are there any FARs governing how long you need to be able to stay airborne? Or is all that's required the ...
5
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1answer
267 views

Is there any mechanism in engine mount to prevent shock loads on engine while landing?

How engine is mounted in wing is restricting motion in any direction but is it still resistant to shock loads, or is there any mechanism inside engine associated to bearings that will absorb shock ...
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6answers
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Why not just drop an engine on fire?

I am interested in the case of Qantas Flight 32 and similar incidents, where there was a fuel leak after a number two engine explosion due to the disintegration of the turbine disc. It was a very ...
5
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1answer
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What could cause a low-pressure compressor first stage blade of a turbofan engine to bend forward?

What could cause a low-pressure compressor first stage blade of a low-bypass turbofan engine to bend forward? I also noticed rotor path rubbing in the 9 to 12 o'clock portion (while usually this can ...
7
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1answer
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Should you immediately attain max glide speed after engine failure?

For the Cessna 172 Skyhawk maximum glide is attained at a speed of 65 KIAS. If you're flying well above this speed, let's say 90 KIAS, and suffer an engine failure, what would be the best practice: ...
17
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3answers
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In which direction should a turn-back be made after an engine failure on a multi engined airplane after take off?

In case one of the engines fails after taking off (let's suppose the left engine is the one that fails), which direction should we turn to go back to the airport? A left or a right traffic pattern?
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Do crosswind takeoffs increase the chance of a compressor stall?

I watched this video on YouTube: The video shows some pretty impressive take-offs in serious crosswind. Honestly, they looked even scarier than crosswind landings. ...
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4answers
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Is turning off engines before landing “Normal”? [duplicate]

I was traveling by Airbus A380 recently and I was sitting near the wing. Throughout the flight, I could hear the airplane noise even with headphones on. Suddenly before landing, everything went ...
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1answer
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Can a Boeing 747 or A380 produce a positive rate of climb with one engine only?

Assume that a Boeing 747 or Airbus A380 takes off at max takeoff weight. Minutes after takeoff, 3 engines fail, leaving only 1 engine operating. Can the aircraft achieve a positive rate of climb in ...
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2answers
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Why is there a maximum altitude to restart a jet engine?

On all the turbojets that I have flown the maximum altitude a pilot can attempt a restart is 30,000 FT MSL. What factors go in to deciding what the maximum altitude is for an engine restart / relight?...
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3answers
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How fast does cabin air pressure leak after a total engine failure?

When an airliner loses all engines while at cruising altitude, two things happen: The plane is a glider. It will descend no matter if you want to or not. The cabin pressure is no longer maintained. ...
8
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1answer
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During an engine restart procedure, what are the purposes of a.) throttle back to idle and b.) primer “in and locked”?

I was making some study flashcards today for Emergency Procedures in the Cessna 162 POH, and realized that I don't quite understand steps 2 and 6 of the ENGINE FAILURE DURING FLIGHT (Restart ...
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7answers
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How miraculous was the miracle on the Hudson?

The "miracle on the Hudson" was extremely unusual - dual engine failures and successful off-field landings in commercial A320-size aircraft are very rare. The event has been dramatized and the crew (...
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1answer
381 views

What happens to EGT after a bird strike?

I just watched the movie "Sully", and I really enjoyed the effort put into making the movie as accurate as possible. As I'm working towards my PPL, I decided to apply some of my new aviation ...
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4answers
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Does windmill restart often work for airliner engines?

There seems to be a certain class of airline accident where an airliner engine flames out followed by further unfortunate events. Very often, pilots are recorded as having attempted to restart a ...
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1answer
391 views

Why is the phrase “infinite energy” used by this (alleged) ATSB investigator? [closed]

In the Air Crash Investigation episode, “Titanic In The Sky”, a Quantas Airbus A380 suffers an uncontained engine failure which partially cripples the plane. In the investigation part of the episode, ...
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3answers
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What happens to cabin pressurisation when the engines fail?

I was reading about the cabin pressurisation mechanism from Wikipedia and another article here. According to both of them, the aircraft's engine plays a vital role in the pressurisation process. My ...
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3answers
318 views

Can a jet cruise with asymmetric thrust?

If a twin turbojet aircraft has an engine failure during takeoff, does it return for landing or does it continue to cruise with asymmetric thrust?
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2answers
869 views

When one engine fails in a twin-turbojet aircraft, is there a weight imbalance?

In a turbojet aircraft with two engines, when one fails does the weight of the working engine increase due to the fuel flowing to it? If it does, how is the weight balanced on the failed engine side?
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2answers
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What happens if a helicopter engine fails at 20,000 feet? [duplicate]

A fixed wing aircraft is able to glide in case of an engine failure and potentially land safely. What would happen if a helicopter engine fails at high altitude? Is it possibly to land it safely?
3
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2answers
317 views

Is pilot alerted of any physical or structural failures?

Current crew alerting system messages, I believe, are displayed basing on the software detection of the failures basing on the sensor information. What kind of structural failures can occur to an ...
8
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1answer
751 views

Could the Concorde reliably land with all engines out?

The Concorde was designed to fly at supersonic speeds; because of this its delta wings produce more drag at subsonic speeds. My understanding is that delta wings can produce a large amount of lift at ...
8
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1answer
1k views

Can the four-engined Lockheed JetStar II fly on one engine?

As we know, there are no four-engined business/private jets currently in production. Some Dassault Falcon models are actually trijets, but this is not the case. The only four-engined business jet in ...
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2answers
764 views

Why does flying inverted in a jet trainer starve the engine of fuel when there's a pump?

Such planes have an engine-driven fuel pump. If the pump isn't strong enough, wouldn't suction feeding assist? How does a modern fighter jet / aerobatic plane overcome this? Also, any general ...
15
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2answers
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Why isn't there a procedure for dual-engine failure in twin-engine airplanes?

I'm licensed to fly multi-engine aircraft. I currently fly the DA-42NG. However, nowhere in my training and in the official POH was I introduced to procedures for handing a dual-engine failure in-...
2
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1answer
145 views

Is there an alternative (more robust) operating law/setting for jet-engines? After one engine failed?

Sorry for the complicated Question. I was wondering (after reading this report) if a two-engine air plane has an alternative operating scheme/setting for the remaining engine. Maybe a setting which ...
10
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4answers
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Is a single engine failure on the HondaJet recoverable?

Is it possible to recover from a single engine failure at cruising altitude on the HondaJet and safely land the aircraft?
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3answers
837 views

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 ...
9
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1answer
7k views

What are the reliability statistics for modern jet engines?

What is the actual numerical reliability statistics of the modern, large-aircraft, commercial turbofan engines available today? e.g. How many running hours can we expect a failure after? Are there ...
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3answers
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Can the A380 ferry an extra engine, like the 747?

A useful little quirk about the 747 is that it can ferry a fifth engine on the wing, for when another aircraft is stranded somewhere in the world. Does the A380 have the same capability? If not, how ...
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3answers
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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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6answers
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Can a plane land safely if it loses power during approach?

British Airways Flight 38 experienced a loss of power during approach to Heathrow and ended up crashing 270m short of the runway. The aircraft was on glideslope when it lost power. The name "...
4
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1answer
560 views

Can a jet engine be restarted after a catastrophic failure? [closed]

I have a retired 747 pilot saying that a catastrophic jet engine failure could be restarted. I have little or no training, but I believe that the word "catastrophic" means that there is no recovery. ...
2
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1answer
1k views

Do Jabiru aircraft have a long history of engine failures or other technical issues?

I heard that a friend of mine experienced an engine failure in a Jabiru 2200. Does this happen very often and are there other common failures in the Jabiru family of aircraft?
6
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1answer
715 views

How much drag does a RAT deployment add?

How much drag does a RAT deployment add? I was watching a simulator video of an A320 dual engine failure at low height during climb out and one step in the protocol was the pilot manually deploying ...