| Concerning aircraft and their passengers which face a grave and imminent threat and require immediate assistance. |
| Concerning the safety of an aircraft, a watercraft or some other vehicle or person in sight |
| Sent by an aircraft operating agency or an aircraft of immediate concern to an aircraft in flight |
| Concerning the operation or maintenance of facilities essential for the safety or regularity of aircraft operation. |
MENU
EN 
Exam Questions
Training Quiz
Exam simulation
PDF Exam
Contact Us
Prices
Are you a school?
App Mobile