It's a bit of a setback for the operations of the majority of Canada's CH-148 helicopters. All but two of the long-awaited Sea King replacements have been taken out of service because of cracks recently found in the tail sections of the aircraft. The exact cause of these stress fractures isn't clear, but one Defence analyst says in some ways this shows the maintenance and inspection processes are working. Former Naval Commander Ken Hansen also says this is likely something the manufacturer Sikorsky will want to help fix, given they have been looking to sell this model of helicopter to other countries.

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