Domanda 78, VFR Communications - ATPL - Airline Transport Pilot license

A condition concerning the safety of an aircraft other vehicles or of a person on board, but which does not require immediate assistance
A condition of being threatened by serious and/or imminent danger and of requiring immediate assistance
A condition concerning the attitude of an aircraft when intercepting the localizer during an ILS approach
A condition concerning the safety of a person on board or within sight and requiring immediate assistance