Air New Zealand expected almost all of its regional services to be operating yesterday after the temporary grounding of its fleet of 11 ATR 72-500 turboprops caused major flight disruptions in the past few days. The aircraft were grounded for unscheduled inspections after hairline cracks were found around the cockpit windows on one ATR 72-500 during routine maintenance. The crack was discovered in the Frame 5 segment of the turboprop. Eight of 11 of the airline’s turboprops were found to ...

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