John Glenn Columbus International (KCMH) radio calls

Towered airport with a Class C surface area

Sample calls at KCMH

John Glenn Columbus International has a Class C surface area: establish two-way communication with the approach control before entering, and keep it (AIM 3-2-4 c 3). A reply with your call sign, even "standby", establishes it. The calls below use runway 10L; the tower assigns the runway in use on the day.

The aircraft is the AIM’s own example, Cessna Three One Six Zero Foxtrot; the squawk codes, altitudes and headings are illustrative. Frequencies, station names and runway numbers are this airport’s, from the FAA data.

1. There is no ATIS frequency in the FAA data for this airport, so ask Ground for the numbers on your first call: they will give the runway, wind and altimeter.
2. YouColumbus Clearance, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, VFR to the north, request clearance.
3. ATCCessna Six Zero Foxtrot, Columbus Clearance, maintain VFR at or below two thousand five hundred, departure frequency one three four point zero, squawk four six one two.
4. YouAt or below two thousand five hundred, departure one three four point zero, squawk four six one two, Cessna Six Zero Foxtrot.
5. YouColumbus Ground, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, request taxi, VFR departure to the north.
6. ATCCessna Six Zero Foxtrot, Columbus Ground, runway one zero left, taxi via Alpha, hold short of runway one zero left.
7. YouRunway one zero left, taxi via Alpha, hold short of runway one zero left, Cessna Six Zero Foxtrot.
8. The runway, any clearance onto a runway and every hold-short instruction are read back (AIM 4-3-18 a 9). Stay on Ground through the run-up and switch to Tower when ready (AIM 4-3-14 a).
9. YouColumbus Tower, Cessna Six Zero Foxtrot, holding short runway one zero left, ready for departure, northbound.
10. ATCCessna Six Zero Foxtrot, Columbus Tower, runway one zero left, cleared for takeoff.
11. YouRunway one zero left, cleared for takeoff, Cessna Six Zero Foxtrot.
12. ATCCessna Six Zero Foxtrot, contact Columbus Approach one three four point zero.
13. Youone three four point zero, Cessna Six Zero Foxtrot.
14. YouColumbus Approach, Cessna Three One Six Zero Foxtrot, two thousand climbing four thousand five hundred, request VFR flight following to the north.
15. ATCCessna Six Zero Foxtrot, Columbus Approach, radar contact, altimeter three zero zero one.
16. YouAltimeter three zero zero one, Cessna Six Zero Foxtrot.
17. Inbound: call the approach control before the Class C boundary; a reply with your call sign establishes communication and you may enter (AIM 3-2-4 c 3).
18. YouColumbus Approach, Cessna Three One Six Zero Foxtrot, one five miles north, three thousand five hundred, squawking one two zero zero, with Information Bravo, landing Columbus, request Class Charlie service.
19. ATCCessna Six Zero Foxtrot, Columbus Approach, squawk four six one two, ident.
20. YouSquawk four six one two, ident, Cessna Six Zero Foxtrot.
21. ATCCessna Six Zero Foxtrot, radar contact, altimeter three zero zero one, contact Columbus Tower one three two point seven.
22. YouAltimeter three zero zero one, one three two point seven, Cessna Six Zero Foxtrot.
23. YouColumbus Tower, Cessna Six Zero Foxtrot, five miles north, three thousand, with Bravo.
24. ATCCessna Six Zero Foxtrot, Columbus Tower, enter left downwind runway one zero left, report midfield downwind.
25. YouEnter left downwind runway one zero left, report midfield, Cessna Six Zero Foxtrot.
26. YouColumbus Tower, Cessna Six Zero Foxtrot, midfield left downwind, runway one zero left.
27. ATCCessna Six Zero Foxtrot, runway one zero left, cleared to land, wind two seven zero at eight.
28. YouRunway one zero left, cleared to land, Cessna Six Zero Foxtrot.
29. The wind is information: acknowledged, not read back. Exit at the first available taxiway or as told, taxi clear of the hold-short markings, and change to Ground only when the tower says (AIM 4-3-21).
30. ATCCessna Six Zero Foxtrot, exit at the next taxiway, contact Columbus Ground one two one point niner.
31. YouExit next taxiway, one two one point niner, Cessna Six Zero Foxtrot.
32. YouColumbus Ground, Cessna Six Zero Foxtrot, clear of runway one zero left, taxi to the ramp.

If things change. The tower operates 24 hours. If you cannot raise it, check the frequency and volume, then squawk 7600, remain outside the Class D until you have the traffic flow, and watch for light signals (AIM 4-2-13).

Phraseology from AIM 4-2-3; 4-3-18 a 9; 4-3-14; 4-3-21; 4-4-7 b; 4-1-18 a 3; 3-2-4 c 3. What TowerTalk grades against →

The calls you will make here

• How to call Ground for taxi →
• Calling the tower inbound →
• Line up and wait, cleared for takeoff, cleared to land →
• Class C airport radio calls →
• How to request VFR flight following →

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