Codes

Question 1

Code 2

Answer 1

Urgent

Question 2

Code 3

Answer 2

Emergency

Question 3

Code 4

Answer 3

Situation stable, emergency situation no longer exists

Question 4

Code 5

Answer 4

Law enforcement surveillance

Question 5

Code 20

Answer 5

Notify press

Question 6

Code 33

Answer 6

Clear radio channels for emergency traffic

Question 7

Mayday

Answer 7

Emergency landing