Kalitta 747-400 Dumping fuel

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BigJets
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Re: Kalitta 747-400 Dumping fuel

Post by BigJets » 30 Mar 2019, 00:11

The 747 landed on runway 08L at Leipzig, came to a stand still on the runway and waited for fire services to inspect the engine. The aircraft is now cleared to proceed to it's assigned parking position


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sn26567
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Re: Kalitta 747-400 Dumping fuel

Post by sn26567 » 30 Mar 2019, 09:59

From avherald I learned that the airport of Cincinnati, Ohio, is located across the river in Kentucky.
André
ex Sabena #26567

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luchtzak
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Re: Kalitta 747-400 Dumping fuel

Post by luchtzak » 30 Mar 2019, 10:32

sn26567 wrote:
30 Mar 2019, 09:59
From avherald I learned that the airport of Cincinnati, Ohio, is located across the river in Kentucky.
Like IAD, Washington is not in the state of Washington, but in Virginia!

jan_olieslagers
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Re: Kalitta 747-400 Dumping fuel

Post by jan_olieslagers » 30 Mar 2019, 11:02

No need to look so far away: BRU airport is not in Brussels :)

Poiu
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Re: Kalitta 747-400 Dumping fuel

Post by Poiu » 30 Mar 2019, 12:28

luchtzak wrote:
30 Mar 2019, 10:32

Like IAD, Washington is not in the state of Washington, but in Virginia!
OFF topic:
IAD (Virginia indeed) is actually over 2500 miles away from the state of Washington.
The city of Washington is not in a state but in the neutral District of Columbia.

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xm717
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Re: Kalitta 747-400 Dumping fuel

Post by xm717 » 02 Apr 2019, 12:33

The news report on this site https://www.aviation24.be/airlines/kali ... s-airport/
...links to this topic saying "Forum member BigJets witnessed multiple explosions as the aircraft passed above Meise, just North of Brussels."

BigJets can more or less write what he wants and what he thinks he hears on whichever forum he wants, but if you have the pretence to produce news articles, you should do better.

Do a quick check, for example https://duckduckgo.com/?q=compressor+stall

The FIRST result immediately says "Compressor axially-symmetric stalls, or compressor surges, are immediately identifiable, because they produce one or more extremely loud bangs from the engine."

Now, BigJets couldn't know that, but any journalist/news site should know what they are talking about.

We all know how eager the press is to bring spectacular things, and "explosion" is just a lot more spectacular than "loud bang".

La Dernière Heure refers to your article and the BigJets quote in this factfree article: "Le moteur d’un Boeing au départ de Bruxelles explose en plein vol"
https://www.dhnet.be/actu/faits/le-mote ... 7477458964

Now we all know that newspapers want clicks and they want to sell, so we know that they will print this sh*t whenever they have an opportunity. Linking to you and quoting an 'active forum member'(that adds credibility, of course) was just that opportunity.

Shame where it is deserved.

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Treeper
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Re: Kalitta 747-400 Dumping fuel

Post by Treeper » 02 Apr 2019, 12:55

xm717 wrote:
02 Apr 2019, 12:33
The news report on this site https://www.aviation24.be/airlines/kali ... s-airport/
...links to this topic saying "Forum member BigJets witnessed multiple explosions as the aircraft passed above Meise, just North of Brussels."

BigJets can more or less write what he wants and what he thinks he hears on whichever forum he wants, but if you have the pretence to produce news articles, you should do better.

Do a quick check, for example https://duckduckgo.com/?q=compressor+stall

The FIRST result immediately says "Compressor axially-symmetric stalls, or compressor surges, are immediately identifiable, because they produce one or more extremely loud bangs from the engine."

Now, BigJets couldn't know that, but any journalist/news site should know what they are talking about.

We all know how eager the press is to bring spectacular things, and "explosion" is just a lot more spectacular than "loud bang".

La Dernière Heure refers to your article and the BigJets quote in this factfree article: "Le moteur d’un Boeing au départ de Bruxelles explose en plein vol"
https://www.dhnet.be/actu/faits/le-mote ... 7477458964

Now we all know that newspapers want clicks and they want to sell, so we know that they will print this sh*t whenever they have an opportunity. Linking to you and quoting an 'active forum member'(that adds credibility, of course) was just that opportunity.

Shame where it is deserved.
At the moment of the quote, the Kalitta wasn’t even diverting yet. It’s merely a quote from a witness.
A journalist of LDH or any other news media should know they have to double-check or at least state that it was only a ground observer.
So no, shame where it is deserved; you can contact LDH or any other news agency for that.

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xm717
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Re: Kalitta 747-400 Dumping fuel

Post by xm717 » 02 Apr 2019, 13:12

Treeper wrote:
02 Apr 2019, 12:55
At the moment of the quote, the Kalitta wasn’t even diverting yet. It’s merely a quote from a witness.
A journalist of LDH or any other news media should know they have to double-check or at least state that it was only a ground observer.
So no, shame where it is deserved; you can contact LDH or any other news agency for that.
If you read closely you will see that that's exactly what I am saying. Aviation24 produces a news report (or at least it looks very much like one). They, and LDH should have checked.

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luchtzak
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Re: Kalitta 747-400 Dumping fuel

Post by luchtzak » 02 Apr 2019, 13:58

xm717, Michael,

I do understand your comment about the word "explosions", the word should - according to wikipedia - be used in case of rapid increase in volume and release of energy in an extreme manner, usually with the generation of high temperatures and the release of gases. Supersonic explosions created by high explosives are known as detonations and travel via supersonic shock waves. Subsonic explosions are created by low explosives through a slower burning process known as deflagration.

Indeed, the engine made a number of loud bangs, emitting a lot of noise and streaks of flame, it makes perfect sense that BigJets, our topic starter used the word "explosions", as he was a real live witness. Next to the witness-part, there is a language-part: "in het Nederlands zou ik perfect kunnen schrijven dat de motor van het vliegtuig ontplofte", même en Français: "il semblait que le moteur a explosé"

Anyway, I changed the part "multiple explosions" into "loud bangs".

https://www.aviation24.be/airlines/kali ... s-airport/

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xm717
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Re: Kalitta 747-400 Dumping fuel

Post by xm717 » 02 Apr 2019, 14:35

Thanks 'mister Luchtzak', that solves it for me.

Desert Rat
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Re: Kalitta 747-400 Dumping fuel

Post by Desert Rat » 03 Apr 2019, 00:44

Compressor stall generates loud bangs, due to reverse air flow in the core engine generated by too high pressure at HP compressor level.
If there's multiple bang, it means that it's probably the variable stator vane actuator having a problem and not positioning the stator vanes at the right position for a given engine speed/air flow.
It's multiple little stalls on all the stator vanes that creates these loud bangs, sometime damaging the engine, sometime not, thrust reduction to engine setting where the bangs can't be generated anymore and diversion to a maintenance base is usually the right thing to do.

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OO-JFP
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Re: Kalitta 747-400 Dumping fuel

Post by OO-JFP » 03 Apr 2019, 07:39

Thanks for your professional explanation Desert Rat, much appreciated.
And also much better than the "poisoned" messages you send out every now and then.
Where is the time when you posted macro pictures of parts of an airplane and your audience had to guess what they were or used for… I miss them a bit to be honest.
Best regards,
OO-JFP

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