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AndyM, Кусосек из документа
Если у Вас механический телефон, то проблем нетA Passenger Announcement is to be made briefing passengers :
c) not to operate any electronic devices.
More stringent precautions must be observed when refuelling an aircraft with JET B or JP4 fuel where the fuel tanks already contain JET B or JP4 or a mixture of both and other fuels.