Distress messages

Aircraft in distress

A distress message should contain as many as possible of the following elements, and, if possible, in the order shown:

  1. name of the station addressed;
  2. identification of the aircraft;
  3. nature of the distress condition;
  4. intention of the person in command;
  5. position, level and heading of the aircraft; and
  6. any other useful information.

MAYDAY MAYDAY MAYDAY TENTOWN TOWER OO-ABC ENGINE FAILED. WILL ATTEMPT TO LAND YOUR FIELD, 5 MILES SOUTH, 4 000 FEET HEADING 360

OO-ABC TENTOWN TOWER ROGER MAYDAY CLEARED STRAIGHT-IN APPROACH RUNWAY 18 WIND 270 DEGREES 8 KNOTS QNH 1010, YOU ARE NUMBER ONE

CLEARED STRAIGHT-IN APPROACH RUNWAY 18 QNH 1010 OO-ABC

These provisions are not intended to prevent the aircraft from using any means at its disposal to attract attention and make known its condition (including the activation of the appropriate SSR code, 7700), nor any station from using any means at its disposal to assist an aircraft in distress. Variation on the elements listed under 9.2.1.1 is permissible when the transmitting station is not itself in distress, provided that such a circumstance is clearly stated.
The station addressed will normally be the station communicating with the aircraft or the station in whose area of responsibility the aircraft is operating.

Imposition of silence

An aircraft in distress or a station in control of distress traffic may impose silence, either on all aircraft on the frequency or on a particular aircraft which interferes with the distress traffic. Aircraft so requested will maintain radio silence until advised that the distress traffic has ended.

ALL STATIONS TENTOWN TOWER
STOP TRANSMITTING. MAYDAY
or
FASTFLY 123 STOP
TRANSMITTING, MAYDAY

Termination of distress and silence<

When an aircraft is no longer in distress, it shall transmit a message cancelling the distress condition.

When the ground station controlling the distress traffic is aware that the aircraft is no longer in distress it shall terminate the distress communication and silence condition.

TENTOWN TOWER O-BC CANCEL DISTRESS. ENGINE SERVICEABLE, RUNWAY IN SIGHT, REQUEST LANDING

O-BC WIND 270 DEGREES 8 KNOTS RUNWAY 25 CLEARED TO LAND

RUNWAY 25 CLEARED TO LAND O-BC

ALL STATIONS TENTOWN TOWER DISTRESS TRAFFIC ENDED