ATPL: Which of the following statements regarding Alerting service is correct?
Domanda 369, Air Law - ATPL - Airline Transport Pilot license
| The Alert phase is established when no communication has been received from an aircraft within a period of thirty minutes after the time a communication should have been received |
| The distress phase is established when an aircraft is known or believed to be the subject of unlawful interference |
| Alerting Service and Flight Information Service are often provided by the same ATS unit |
