2.14 Distress and Urgency Communications

2.14.2 Describe the degrees of emergency that warrant:

(a) a distress call (MAYDAY); 

The highest level of emergency is a distress call, commonly known as "MAYDAY."

A definition of a distress is a condition of being threatened by serious and/or imminent danger and of requiring immediate assistance.

In aviation, there are several emergencies that warrant a MAYDAY call.

Some examples include:

1. Engine failure:

When one or more engines fail, posing a significant risk to the aircraft's ability to maintain altitude or continue the flight.

2. Loss of control:

When the pilot is unable to maintain control of the aircraft, leading to a dangerous situation.

3. Fire on board:

When there is a fire or smoke in the aircraft, which can threaten the safety of the passengers and crew.

4. Structural damage:

When the aircraft sustains significant damage, such as a breach in the fuselage or wing, which compromises its structural integrity.