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chairlift incident in Australia


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#1 NoPainNoJane

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Posted 19 May 2006 - 08:28 AM

not sure if this has been posted before or not, but just saw this article:

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interesting picture, wonder how the chairs are all just hanging from the same spot

Quote

THE future of the Mornington Peninsula's Arthurs Seat chairlift remains unclear with the popular tourist attraction closed for at least a week.

WorkSafe inspectors yesterday put a non-disturbance notice on the site, which prevents the lift from running for at least a week, WorkSafe spokesman Michael Birt said.

Engineers will make an assessment over what caused the fault on Tuesday, when 11 people had to be rescued from the 950 metre-long chairlift after owner-operator Richard Hudson shut down the ride after noticing cables had started to slip.

"The control booth is right outside the end terminal so we can see everything," he said.

"The cable down there is usually pretty steady and only shakes when we load people, but on this occasion it was shaking. We said to ourselves, 'What is that?' "

Mr Hudson was able to help about six people off the lift with a cherry-picker but five were left stranded four to seven metres in the air for up to three hours.

Rescue crews eventually winched them to safety using ropes and harnesses.

"We're very disappointed about that, the media attention really isn't warranted," Mr Hudson said. "There was never any question that anybody was at risk in any way and the pre-planned evacuation went without a hitch." He predicted the lift would be closed for "some weeks".

It was the third incident at the chairlift in as many years.

In January 2003, 18 people received head, neck and spinal injuries and 50 others had to be rescued when a support pylon collapsed.

The lift was closed and extensively refitted, reopening a year later. After two months, a 77-year-old Preston woman broke her legs when the chair she was riding in slid forward and hit the chair in front.

Yesterday, Mr Hudson said he feared for the lift's, and his own, future. "We have to be concerned about that," he said. "We are very much at the mercy of the Government."

He told ABC radio it would cost about $3 million to replace the chairlift if investigators found that it was unsafe.

Local federal and state members of parliament said they would petition for financial and promotional support for the chairlift if WorkSafe gave it the green light.

Labor member Greg Hunt said if the lift closed it would have repercussions for surrounding businesses.

"When it wasn't operating it made it much harder for the businesses at the top in the Red Hill and Arthurs Seat area," he said. "They have their own life, but the chairlift adds to it."


more information:

article

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Quote

UP TO 10 people were rescued from the Arthurs Seat chairlift yesterday, just three years after one of the lift's support towers collapsed, injuring 18 people.

Country Fire Authority rescue crews were called to the 950-metre-long scenic chairlift after cables became loose and four chairs collided.

Sightseers were left dangling four to seven metres in the air for up to three hours when the last to be rescued, Ian Lark and his four-year-old daughter Sarah, were winched to safety.

"We were supposed to go on a holiday, but my wife has broken her leg so I thought I'd take Sarah out for a bit of a day trip," Mr Lark, 42, of Rosebud, said.

He said he had noticed some of the lift cables shaking just minutes before they came to a stop.

"I could see the cables weren't going properly through the rollers," he said.

Metropolitan Ambulance service spokesman Andrew Watson said there were no injuries and all those who were rescued yesterday remained calm, particularly four-year-old Sarah. "She was absolutely amazing," he said.

The chairlift was built in 1960 and operator Richard Hudson had run it without incident until January 3, 2003.

On that day, 18 people received head, neck and spinal injuries and 50 were rescued in a six-hour operation when the chairlift pylon crashed to the ground.

The lift closed for a year and underwent a $500,000 refurbishment to bring it up to approved safety standards.

Soon after it reopened, a 77-year-old Preston woman suffered broken legs when the chair she was riding in slid forward and slammed into the chair in front.

Yesterday lift operator Richard Hudson was able to rescue some of the stranded people before CFA crews arrived at the scene, adding to the confusion of exactly how many had been stuck in the air. He spent the rest of the afternoon inspecting the area with WorkSafe officers and was unavailable for comment.

WorkSafe spokesman Michael Birt said three inspectors were at Arthurs Seat.

"Our guys are at tower five, where it would appear that the cable has jumped off one of the rails and that's caused it to stop, stranding the people," he said.

Mr Birt said the operators of the chairlift contacted WorkSafe before 3pm to inform them of the problem, but he was unsure when the chairlift had malfunctioned.

Investigations were continuing.

ARTHURS SEAT CHAIRLIFT
1960 Czech engineer Dr Vladimir Hajek designs and builds the chairlift
1979 Richard Hudson takes control without accident until 2003

January 3, 2003 A pylon collapses: 18 people are injured, four seriously; 50 are trapped for six hours. Lift closes

January 6, 2004 Chairlift reopens after $500,000 renovation

March 18, 2004 A 77-year-old woman breaks her legs after her chair slides and hits the chair in front

May 16, 2006 Mechanical failure causes lift to stop for three hours; up to 10 people rescued


#2 lastchair_44

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Posted 19 May 2006 - 09:33 AM

do you guys reckon one grip failed...carrier slipped back...next grip failed...those two carriers slipped back and so on until the mess got to that tower and that's how it de-roped and then the lift stopped?? that would explain oscillation in the cable which is what people saw
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#3 Mike

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Posted 19 May 2006 - 12:37 PM

I wonder if it derailed to the inside psooibly avoiding any derail system. When the first chair would hit the tower, the grip would slip until the next chair came in and so on...
It looks like the whole evener assembly spun upside down...

This post has been edited by Mike: 19 May 2006 - 12:38 PM


#4 cjb

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Posted 19 May 2006 - 06:23 PM

we had a yan double derope to the inside after swinging wildly from getting caught in the comline following a windstorm. (off season-running for maintenance). The operator noticed the rope and chair bouncing and stopped the lift. The first chair to contact the tower slid back and became wedged under the needle of the second which also slid back about 10 feet. Luckily there was no permanent damage to anything, We replaced a grip and that was it. This looks like it could have been a similar incident, although it is hard to believe that many carriers would pile up before anyone noticed.

#5 mcjones55

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Posted 25 May 2006 - 03:45 PM

I was in Oz in 2003 when the initial incident happened. I found out thru some sources that one of the reasons the pylon collapsed was due to lack of inspection. The down hill bolts in the foundation(the ones under tension on a vertial tower with a sloping lift line) Failed. they had layers and layers of paint on them which traped moisture and kept them from being inspected, they rusted to the point of failure.

#6 okemopoma

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Posted 03 June 2006 - 03:52 PM

Where was the tower safety circuit? The lift should have stopped way before that many carriers piled up.
Incredible.
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#7 Lift Kid

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Posted 03 June 2006 - 07:36 PM

View Postokemopoma, on Jun 3 2006, 03:52 PM, said:

Where was the tower safety circuit? The lift should have stopped way before that many carriers piled up.
Incredible.

I too wonder. I was thinking that perhaps the safty circuitry wasn't funtional due to lack of inspection. :stretcher:

#8 cjb

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Posted 04 June 2006 - 08:17 PM

In my case the rope went to the inside and was running on the three inch main axle, the tower has a DR-2 card in the center of the assembley and the rope simply pushed the wires away when it was close to them, it was not on them in a manner to wear through them or anything. The whole assy kind of spun as it was unweighted and the tower card simply spun with it. I think I have some pictures of it and will try to dig them up and post them. The best thing of it all (other than having no passengers at the time), is that the rope was not damaged!

#9 Dawson

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Posted 06 June 2006 - 05:19 PM

The recent list of failures of this lift suggests that it might be time for a new lift. And if the price tag can't be justified, then it should be lights out.

The lift in question probably suffers from maintenance staff that do not have much exposure to chairlifts.

#10 Peter

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Posted 06 June 2006 - 07:23 PM

It doesn't look that old, Maintenance must be the problem.
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#11 yetigonecrazy

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Posted 07 June 2006 - 09:38 AM

sketchy. my vote goes for the lack of know how on the maintnence. or lack thereof.


that picture is definitely going on my fridge.

#12 LiftTech

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Posted 10 June 2006 - 09:51 AM

Lets not blame “Maintenance” or “Maintenance staff” yet. Sorry, I’m a little sensitive about that. Look at the picture closely and read the article again. They said the lift was built in 1960, is that not too old? (I’m going to stop whining about our 36-year-old lift we got). This lift looks like it de-roped to the inside and very few fixed grip safety systems protect from this type of deropement. This train has an inside deropement device and appears to extend above the sheave. The question is how did the rope jump up over it? Picture this, Windy day, chair blows to the inside, grip and or hanger hits sheave #1 or even past that and hits the pair and derailment T and becomes entangled, with that contact point being well above the main axle the train could flip upside down and could pull the rope to the inside. This would explain the “shaking”. Pick the rope up 2’ and drop it, bet there will be a whole lot a shaken going on. Even with that said there are many questions unanswered from the picture and the article. What cables were slipping? Drive wheel? Hard to believe with only 4 grips hung up! What were the top ops doing if they can see everything? Were they just not looking? Was it windy? They had been running long enough to load 11 people but where were they? Long span between 4 and 5 was someone jumping up and down in a chair? Could be an illusion but the train looks bent at the main axle and the pairs look as if they are not aligned. If so, Why? If the main axle connection point failed and the train turned in it would have caused an outside deropement! Did it? (Lead end of the train looks to be in towards the centerline) Is the rope on top or the bottom of the main axle? Can you tell? I’m questioning it to myself. It looks strange. They just put $500,000 into it two years ago because of a tower, what did they spend it on????? YAN!!!! Popcorn and bubble gum I’ll bet.

#13 Peter

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Posted 10 June 2006 - 10:43 AM

In 2003-2004, the lift was completely rebuilt with all new towers, engine, chairs, grips, sheaves, bullwheels, and more. So it is mostly new, modern equipment.
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#14 Allan

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Posted 10 June 2006 - 11:48 AM

I thought about this incident too and wondered why the lift didn't stop, I would think that most deropement detection systems would detect an inside deropement..
RPD's - the rope's gone the lift would stop
Brittle bar with weighted/spring loaded 2er - rope gone 2er should rotate breaking fork (unless something prevents it from rotating - lack of grease, 2er to frame contact)

The only system I could come up with off the top of my head was a brittle card/fork system that extends out into the catcher that the rope is supposed to snap on its way down. Which I guess why Doppelmayr now requires two cards/forks in this type of system, one above the rope and one out into the catcher.
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#15 LiftTech

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Posted 18 July 2006 - 11:07 AM

High price after 27 years at the top
Jen Kelly
11jul06

THE trouble-plagued Arthurs Seat Chairlift is for sale -- and it won't come cheap despite its 3 1/2-year string of disasters.


Owner Richard Hudson has revealed he is selling the closed tourist attraction, and expects a hefty price despite its run of troubles.
"If you were creating what we've got there you'd be looking at over $3 million," he said.

"We wouldn't hope to get that for it now, but certainly a fairly substantial sum. It's a very, very valuable business."

The owners are determined any buyer will reopen the chairlift and keep it operating.

"We're more interested in the quality and the expertise of the people, and the passion to keep it going (rather than the price)," Mr Hudson said.

"We put 27 years into Arthurs Seat and created the top attraction in this part of the world and we wouldn't want to see it decline in any way."

Mr Hudson, who intends to keep living in Dromana, said his family had run the 46-year-old chairlift since 1979 and it was time to move on.

"It's been a difficult three years for us," said Mr Hudson, who is in his 70s.

"There's been a few impediments, and it's going to take a while to overcome them. So we thought it was a good chance to let somebody else with a bit more energy take it on and continue the tradition of Arthurs Seat."

The chairlift has been closed since May 16 when passengers were rescued by cherry picker after a cable jumped off a pulley.

WorkSafe is still investigating the incident.

Mr Hudson said he hoped to sell the chairlift while it was closed, and to help the new owners work with WorkSafe to have it reopened.

In January 2003, 18 people were injured and dozens were stranded for hours in mid-air when a pylon supporting the cable collapsed.

The chairlift reopened a year later, in January 2004, but in March of that year one of the chairs slipped forward, crushing an elderly woman's legs.

It was closed again, for almost eight months, before WorkSafe allowed it to reopen.

Last month, Mr Hudson's company, Arthurs Seat Scenic Chairlift Pty Ltd, pleaded not guilty in Melbourne Magistrates' Court to breaching the Occupational Health and Safety Act in relation to the 2004 incident.

The company was ordered to stand trial in the County Court.

The maximum penalty is a $250,000 fine.

Mr Hudson said the decision to sell had been brewing for some time, but he had made up his mind in only the past few days.

"It's going to be quite nice to have some spare time," he said.





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