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            Six Boeing 767 heavy aircraft were grounded just before Christmas Eve by Ansett Australia, for overdue maintenance which should have been carried out up to 18 months ago 
 A local news report ¹ stated:- "There appeared to be no system at Ansett or Boeing to guarantee the requirement"
 
 
            ¹Source:- www.news.com.au 25 Dec '00
 
           
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             CASA says a crack found in part of the tail of one of Ansett's grounded Boeing 767 aircraft was not an immediate safety threat ²
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            ¹Source:- ABC News Online 29 Dec '00
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