Park owner Stephen Bristow said the mistake should have been spotted during safety checks.
The company and union are negotiating, but disagree on health care coverage and safety checks.
Project bosses said their safety checks showed more work is required on the complex 2, 000-tonne structure.
BBC: NEWS | UK | England | London | Delay to raising Wembley's arch
Landlords in Guernsey may have to pay for regular health and safety checks to protect tenants.
False alarms lead to "complacency" among businesses and prevent vital safety checks, crews said.
No licenses were required, no food safety checks, just a willingness to work in the blazing sun.
In those areas they will carry out home safety checks, advise people on fire safety and fit smoke alarms.
An Airbus wing cargo ship has arrived at Anglesey for safety checks after being stranded in the Dee estuary.
It also criticised the flight crew for not adhering to standard safety checks.
BBC: NEWS | Europe | Isle of Man | Air crew criticised for fire risk
Manufacturer Eurocopter has ordered extra safety checks and said gearboxes should be monitored more closely and at more regular intervals.
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International regulators grounded all 787 Dreamliners in January so that safety checks could be carried out on their lithium ion batteries.
BBC: Dreamliner: Japan's ANA cancels more Boeing 787 flights
Narrative verdicts into the victims' deaths were returned, highlighting "numerous missed opportunities" to carry out fire safety checks inside the building.
So far 50 Dreamliners have been delivered to airlines by Boeing, but all are currently grounded while safety checks are carried out.
She said Mr Thompson had failed to lock the lift and that necessary safety checks would have taken seconds to carry out.
But the project has met with technological problems, and the reactor hasn't yet finished necessary safety checks by the government to restart operations.
Western retailers blame lax government safety checks, while Bangladeshi manufacturers say foreign companies need to pay more for clothes to finance building improvements.
Thousands were stricken, and more than 40 people died as a result of the contaminated foods not being subject to regulatory safety checks.
The NTSB head said that Boeing's safety checks suggested that a smoke event would occur less than once every 10 million flight hours.
But Mr Abe, who was elected in December, has indicated he wants to restart the reactors after safety checks to meet pressing power needs.
The CCK said "sub-standard components" were often used which had not been put through safety checks and might emit higher than recommended radiation levels.
South Africa and New Zealand have both toured in the last six months after carrying out extensive safety checks, and under heavy guard from Pakistan's security forces.
It said the new firm would sell fire safety checks and advice to other organisations in a bid to generate money for the fire service.
Pauls Malt failed to meet failed to meet vital health and safety checks by letting Mr Kinmond sign himself into the giant silo, the court heard.
BBC: Pauls Malt fined after worker lost leg in silo accident
"These places are illegally rented out to tourists with no safety checks and without a permit, " says Machteld Ligtvoet, press manager for the Amsterdam Tourism and Convention Board.
France and Italy promised better safety checks for road tunnels after at least 40 people died when a lorry caught fire in a tunnel under Mont Blanc .
Once additional safety checks were carried out, the airliner took off at 1128 GMT and it landed about 40 minutes late in New York at 1000 local time (1500 GMT).
Meanwhile, safety checks carried out by the fire service in more than 22, 000 homes across Merseyside in England found that fewer than one in 10 had a carbon monoxide alarm.
International regulators grounded all 787 Dreamliners in January so that safety checks could be carried out on their batteries after incidents on a Japan Airlines plane and an All Nippon Airways plane.
An unqualified Massey worker performed over 200 safety checks at the Upper Big Branch mine, the site of the disaster, writes Ward, using a forged ID card, from 2008 to mid-2009.
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Diplomats have routinely expressed concern about the safety of Burma's domestic airlines, which have been unable to modernise their fleets because of sanctions, and whose safety checks are not published, the BBC's south-east Asia correspondent Jonathan Head reports.
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