ATC phraseology

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This page lists some common phraseologies used in the communication between pilots and ATC.

For a detailed tutorial in ATCing, please take a look at the ATC Tutorial.

Affirmative

  • Abbreviation: aff

Yes.

Call

Contact me. Usually ATC asks you to make contact after you've done something or you are ready to do something.

Cleared for takeoff runway 28L

You are cleared for takeoff from runway 28L. Only this sentence (and really nothing else) gives you clearence for takeoff from the said runway.

If the word immediate is added (eg. Cleared for immediate takeoff runway 28L), you are only cleared for takeoff if you are able to do so within a very short time. Usually traffic is coming in on the same runway, so do not enter the runway if you are not ready for takeoff in this case.

Cleared to land runway 28R

You are cleared to land at runway 28L. Only this sentence (and really nothing else) gives you clearence to land at the said runway. Always make a visual check to see if the runway is really clear!

Climb and maintain 8000 ft

  • Abbreviation: c/m.

Climb to 8000 ft and hold that altitude until further instructions are given.

Descend and maintain 8000 ft

  • Abbreviation: d/m.

Descend to 8000 ft and hold that altitude until further instructions are given.

Hold short

  • Abbreviation: h/s.

You are cleared to taxi to a certain location, but you should wait at the designated point. This can be a runway entrance, or a taxiway crossing. As soon as you reached the designated point, you inform the ATC that you are "Holding short".

Initiate missed approach

For some reason ATC wants you to abort the landing; there might be traffic on the runway. Immediately abort your landing and follow the missed approach procedure appropriate to your aircraft. Usually the ATC will give some instructions like altitude and heading. As you have to redo your approach, you are requested to contact approach again.

Line up and wait

Enter the runway, position yourself in the center and await further clearance.

Note: The phrase "(taxi into) position and hold" is no longer used.

Negative

  • Abbreviation: neg

No.

One orbit to the left

Make a circle to the left and then continue on the original heading. ATC may tell you to do so if a little more spacing between you and the aircraft in front of you is required.

Report established

Tell the ATC once you are established.

Roger

  • Abbreviation: rgr

I received your information.

Say again

Repeat your last message.

Will Comply

  • Abbreviation: wilco