Priority of radiotelephony messages Flashcards
What are the priority of radiotelephony messages
- Distress
- Urgency
- Direction finding
- Flight safety
- Meteorological
- Flight regularity
Give an example of Distress message
- Fire on board, request straight in approach
- Uncontrolled engine fire, losing height, request immediate landing, two persons on board,
endurance one hour - Engine failure, attempting forced landing
- Air collision
- Bird strike with serious damage
Give an example of Urgency message
- Passenger with suspected heart attack, request priority landing (= Medical PAN PAN)
- Fuel exhaustion, request priority landing
- Emergency descend due to decompression
Give an example of Direction Finding message
- Request QDM
- Request heading to EBCI
- Fly heading 290 degrees
Give an example of Flight Safety message
- Position reports: “downwind”, “final”, “over FLORA”
- Meteorological warnings (“deteriorating weather”, “wind shear”)
- Runway surface condition (“water patches on the runway”)
- Wake turbulence due to Boeing 737 departing ahead
- Reporting a radio failure
Give an example of Meteorological message
- Wind 150 degrees, 14 knots
- Request latest wind (or weather) at EBLG
Give an example of Flight regularity message
- Delayed arrival
- Liège APP, OOBFS, is a taxi available on the airport?
A condition concerning the safety of an aircraft or of (a) person(s) on board, but which does not require immediate assistance, is a :
Urgency message, prefixed by “PAN-PAN PAN-PAN PAN-PAN”
Which message will you send when you have a radio failure?
A flight safety message
Which priority has the message “Request QDM”?
Priority 3
Direction finding
Which message priority when you report “downwind”?
Priority 4
Flight safety
A non-instrument rated pilot without normal outside visual visibility (being in IMC), sends
Distress message, beginning with “MAYDAY MAYDAY MAYDAY”
The frequency used for the first transmission of a “MAYDAY” call shall be:
The frequency currently in use (i.e: already selected and available)
If you experience an emergency while you’re on frequency with ATC, you should:
Stay on the frequency and keep your assigned squawk code.
A distress or urgency message call should be made on the frequency in use at the time.
A distress message should be continued on this frequency until the controller instructs you to switch to 121.5 MHz.
What do you have to do when you hear in flight “MAYDAY MAYDAY MAYDAY” and ATC is not replying?
- Maintain radio silence until advised that the distress traffic has ended
- Act as relay station to ATC for the aircraft which sends a distress message
- Help the pilot in distress with whatever assistance possible (advice, information, etc…)
