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Accident at Gröna Lund

VonRolland

VonRolland

Hyper Poster
cookie said:
Gröna Lund is cancelling their winter event for this year due to financial issues and low attendance following the accident. Anyone who’s already purchased tickets will be refunded.

www.aftonbladet.se

Gröna Lund pausar sin vintersatsning

Dödsolyckan, bistra tider och uselt sommarväder har fått publiken att svika Gröna Lund. Nu ställer nöjesparken in sin vintersatsning.
www.aftonbladet.se www.aftonbladet.se

The park’s halloween event will proceed as scheduled, however.
Click to expand...
so sad! Hope they can claw it back next year, any update with the investigation?
 
cookie

cookie

Giga Poster
Estimated attendance over the summer season dropped from over a million in 2022 to just 720,000 this year. Daily attendance has been down by a third on average since the accident, and the park is said to have lost up to 200 million SEK (~€17m) in revenue. Layoffs are unfortunately to be expected.

www.aftonbladet.se

Tappade 200 miljoner efter olyckan – nu kan Grönan varsla

”Måste se över kostnadskostymen”
www.aftonbladet.se www.aftonbladet.se
 
oriolat2

oriolat2

Giga Poster
Not to be disrespectful about the news, but does anybody know what the status of the coaster will be in 2024? I am planning a trip to the park in June next year and I would love to ride it again, since I loved it back when I went on it 8 years ago.
 
TilenB

TilenB

Strata Poster
Any idea on what's going on with Twister? From what I gathered, it hasn't run since September 2022 and while there was some obvious retracking going on in October 2022, the recent reports suggest that the ride is more or less standing idle. Was its extended closure also in part a casualty of the Jetline accident?
 
S

SimonProD

Mega Poster
An interesting question as Jetline, Twister and Vilda Musen are all intertwined - the last two even sharing parts of the support structure...
 
L

loefet

Roller Poster
In an article on "Ny Teknik" where they interviewed the prosecutor, he said that they have a good knowledge on how this accident happened.
Unfortunately the original article is behind a paywall so can't read it, and the other articles are a bit vague, so not entirely sure on details.

The right support arm broke first, which caused the wheel assembly to fall off, after this the same happened on the left side. This caused two hard break jolts after each other.
These jolts threw the passengers towards the lap bars, but the weight of an adult is to strong and the mechanism fails due to the high force, which caused the lap bars to fail and 3 people fell out, of which one to her death. Jet-Line is designed to have higher g-forces that keep riders in their seat, and the lap bar is only designed to hinder people to stand up, a simple lap belt could have stopped the people from falling out.

Since only one of the support arms sheared of completely the train didn't derail. The cracked support arm was new, and installed just one month ago, according to the prosecutor. And he have a good view on why it happened but is not ready to give out details just yet.

www.nyteknik.se

Bilden börjar klarna – utredare av Gröna Lund-olyckan: ”Bärarmen gick av”

Bilden börjar klarna av vad som hände i Jetline-olyckan på Gröna Lund i somras. Bärarmen under den främre vagnen knäcktes på två ställen och säkerhetsbyglarna böjdes så att tre personer föll ur. Det uppger Haverikommissionen och åklagaren.
www.nyteknik.se www.nyteknik.se
www.svt.se

Knäckt bärarm bakom Jetline-olyckan på Gröna Lund

En knäckt bärarm på tågets främre vagn gjorde att bergochdalbanan Jetline spårade ur vid dödsolyckan på Gröna Lund i somras. Det uppger åklagaren i ett pressmeddelande under onsdagen.
www.svt.se www.svt.se
www.aftonbladet.se

Knäckt bärarm bakom Gröna Lund-olycka

En knäckt bärarm under den främre vagnen gjorde att bergochdalbanan Jetline spårade ur vid dödsolyckan på Gröna Lund i somras. Vad som knäckte bärarmen är därem
www.aftonbladet.se www.aftonbladet.se

When reading these articles it's hard to decipher if the new arm was the one to shear off or it was the second to break but didn't shear.
Anyway, if it was the one to break then it could point to a bad part, instead of wear and tear if it was older.

Also this might also force Liseberg to install belts on Lisebergbanan, since they use a similar lap bar design (or any other Schwarzkopf for that matter).
We just have to wait and see on what happens.
 
S

SimonProD

Mega Poster
When reading these articles it's hard to decipher if the new arm was the one to shear off or it was the second to break but didn't shear.
Anyway, if it was the one to break then it could point to a bad part, instead of wear and tear if it was older.
Click to expand...

Intersting bit of news. Some years ago there was an accident with a refurbished Schwarzkopf Monster were the new welds failed due to the forces - on the other arms hairline cracks in the new welds were detected. Inspecting Monster that were not refurbished it was found that no original parts had any hairline cracks even after over 40 years of use. After further investigation it was found that the worker doing the welds did them not according to specs. No other Monster was refurbished by that company or in a similar way so far...

Also this might also force Liseberg to install belts on Lisebergbanan
Click to expand...

Hopefully they come up with a modern way to check if the belts are closed like an electric circuit connected to a LED status light. Doing those checks manually will kill capacity for good...

The best solution might be to buy new trains from Gerstlauer with hydraulic lapbars.
 
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L

loefet

Roller Poster
An updated article with response from the Technical director of Liseberg was now posted on GP.

Liseberg won't take any actions regards to the accident and feel secure with the safe operation of Lisebergbanan. They replaced the trains 5 years ago, and still have plenty of original spares to go with them.
He do share the view of a 3 point safety belt would have stopped people from falling out, since the restraints (as said before) aren't ment for this sudden stop, neither are the cars them selves (as every other attraction out there), but there are no plans to introduce any belts on Lisebergbanan at the moment (but that may change depending on the full investigation of the accident).

Apparently both support arms were newish, but Gröna lund won't say the source of their support arms, but the prosecutor mentions that they are reproductions from a well established Swedish company. Some of which have been used on Jetlines trains for years (from the same batch).
But they haven't really figured out why the arm cracked and he is waiting for the final investigation report for that.

www.gp.se

Liseberg: ”Vi har originaldelar”

Enligt åklagaren orsakades dödsolyckan på Gröna Lunds attraktion Jetline av att en nästan ny bärarm under tågen brast.<br/>Den nya slutsatsen får inte Liseberg att vidta några åtgärder på Lisebergbanan, som kommer från samma tillverkare som Jetline.<br/>– Vad jag kan förhålla mig till från...
www.gp.se www.gp.se

The final report is expected to be done by May/June next year, and it's at that point that Göran Lund will decide what will happen to Jetline.

SimonProD said:
Intersting bit of news. Some years ago there was an accident with a refurbished Schwarzkopf Monster were the new welds failed due to the forces - on the other arms hairline cracks in the new welds were detected. Inspecting Monster that were not refurbished it was found that no original parts had any hairline cracks even after over 40 years of use. After further investigation it was found that the worker doing the welds did them not according to specs. No other Monster was refurbished by that company or in a similar way so far...



Hopefully they come up with a modern way to check if the belts are closed like an electric circuit connected to a LED status light. Doing those checks manually will kill capacity for good...

The best solution might be to buy new trains from Gerstlauer with hydraulic lapbars.
Click to expand...
Yeah you really need to go by the book, and use proper spares with the right material on these rides.
As hi said in the new article, then they don't have any plans of introducing them as of at the moment, but that might change.

The trains Liseberg have at the moment are fairly new (5 years), so I doubt that they will get any new ones again. They could however redesign the mechanism with Zierer if that's required to make it stronger (hydraulic) instead of putting seat belts on there. Since as you said, it would really kill the capacity.
 
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L

loefet

Roller Poster
NyTeknik have posten an update about this unfortunate accident, based on preliminary findings of the Swedish Accident Investigation Authority and that have been relayed to the paper by two sources.
The support arms have been made to a faulty specifications, it missed an extra plate to brace between the welds that hold the support arm together, as well as the welds themselves haven't been up to standard.
The plate was in the original drawings that Gröna Lund provided to the manufacturer, but the manufacturer and their subcontractor didn't understand the drawings fully and didn't install it as the drawings specified.
The Swedish Accident Investigation Authority, put the blame on all of them, the manufacturer for not supplying a faulty part and Gröna Lund for not being to thorough in checking the parts, even though they hade sent back other support arms due to visible defects.

Final report of this will come in May/June, and as posted before Jetline will remain closed for this coming season.

Sources:
NyTeknik (paywall): https://www.nyteknik.se/samhalle/ny...lund-olyckan-otillracklig-hallfasthet/4231022
TT/OMNI: https://tt.omni.se/kallor-tillverkningsfel-bakom-grona-lund-olycka/a/nQdeJB
 
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