Which of the following best describes an aircraft in a state of distress?

The definition of an aircraft in a state of distress encompasses situations where immediate assistance is necessary because the aircraft is in a perilous condition. This can involve various critical scenarios that threaten the safety of the aircraft and its occupants, such as emergencies that may lead to a crash, major system failures, or life-threatening situations.

When an aircraft is described as being in distress, it indicates that the situation is severe enough that the safety of all on board is compromised, requiring urgent and immediate help from air traffic control and other supporting resources. Factors like lost engine power or mechanical issues may contribute to a distress situation, but without the critical need for immediate assistance, they do not completely define a state of distress. For example, an aircraft that is merely low on fuel might not necessarily mean it is in distress if it can glide safely to an alternative landing spot. Thus, the emphasis on the need for urgent help distinguishes distress from other less critical situations.