A spokesman for the Scottish Ambulance Service said that alternative services would be found to ensure that there was adequate cover for the grounded aircraft:
Until the matter is resolved, the Scottish Ambulance Service is operating normal contingency measures whereby any patient that requires transfer by air will be taken by Coastguard and military helicopters, Scotland's Charity Air Ambulance helicopter or SAS fixed-wing aircraft.
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Scotland Yard said the male youths will appear in custody at Westminster Magistrates' Court on Saturday.
Windy this weekend with gales across northwestern parts of the UK. Rain spreading southeast.
Greater Manchester Police said "inquiries are ongoing to fully understand the circumstances of the incident."