What is the probability of failure before the next maintenance window?

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Where then is the market failure that would invite federal maintenance of a stockpile?

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The remaining five cases involve the airline's failure to follow its own maintenance procedures, the FAA said.

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An emergency backup generator is only allowed to operate for 200 hours every year and only in the event of an emergency power failure or for routine testing and maintenance.

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But the price of system failure, just like that of inadequate maintenance, would be even more enormous.

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Failure really is not a palatable option, as maintenance cost can destroy the economics of a wind farm.

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We have a contractual structure which we published in January last year, which sets out the requirement for the maintenance of a contestable framework and for us to have intervention rights in the event of supplier failure.

BBC