Non-towered · Class G at the surface
St Johns Industrial Air Park (KSJN) radio calls
St Johns, AZICAO KSJN · FAA SJN
St Johns Industrial Air Park is a non-towered airport in St Johns, AZ. Nobody clears you to do anything: you self-announce on the CTAF, 122.8, as St Johns Industrial Air Park Traffic, with the airport name at the start and end of each call.
No Class B, C, D or E surface area is designated for this airport in the FAA data, so the airspace at the surface is Class G.
Frequencies
| CTAFSt Johns Industrial Air Park Traffic | 122.8 |
|---|
Airport
- Runways
- 03 · 21 · 14 · 32
- Elevation
- 5,737 ft
- Position
- 34.519, -109.379
Non-towered airport: self-announce on the CTAF
Sample calls at KSJN
St Johns Industrial Air Park has no operating control tower. Every call below goes out on the CTAF, 122.8, to the other aircraft, not to a controller. The runway shown is 03; use whichever runway the wind and the traffic dictate 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.
- Tune 122.8. Nobody clears you; you announce and you listen. The airport name goes at the start and the end of every call, and the runway is always a number, never "the active" (AIM 4-1-9 g 8).
- YouSt Johns Industrial Air Park traffic, Cessna Three One Six Zero Foxtrot, taxiing to runway zero three, St Johns Industrial Air Park.
- YouSt Johns Industrial Air Park traffic, Cessna Six Zero Foxtrot, departing runway zero three, departing the pattern to the north, St Johns Industrial Air Park.
- Announce until you are about 10 miles out; on the way back, start announcing at 10 miles (AIM 4-1-9 c 1, TBL 4-1-1).
- YouSt Johns Industrial Air Park traffic, Cessna Three One Six Zero Foxtrot, one zero miles south, two thousand five hundred, landing St Johns Industrial Air Park, St Johns Industrial Air Park.
- YouSt Johns Industrial Air Park UNICOM, Cessna Six Zero Foxtrot, one zero miles south, request wind and runway information, St Johns Industrial Air Park.
- A UNICOM operator, if one is on, answers with the wind and the runway in use (AIM 4-1-9 h). If nobody answers, choose the runway from the wind and the pattern traffic you can hear.
- YouSt Johns Industrial Air Park traffic, Cessna Six Zero Foxtrot, entering left downwind runway zero three, full stop, St Johns Industrial Air Park.
- YouSt Johns Industrial Air Park traffic, Cessna Six Zero Foxtrot, left base runway zero three, St Johns Industrial Air Park.
- YouSt Johns Industrial Air Park traffic, Cessna Six Zero Foxtrot, final runway zero three, full stop, St Johns Industrial Air Park.
- YouSt Johns Industrial Air Park traffic, Cessna Six Zero Foxtrot, clear of runway zero three, St Johns Industrial Air Park.
If things change. Do not use "any traffic in the area, please advise"; the AIM says it is not to be used under any condition (AIM 4-1-9 g 1). Listen for ten miles before you arrive; most of what you want to know has already been said.
Phraseology from AIM 4-1-9 c 1, g 1, g 8, h; TBL 4-1-1; 4-3-3. What TowerTalk grades against →
The calls you will make here
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Frequencies, runways and airspace from the FAA National Airspace System Resources (NASR) 28-day subscription, cycle effective Sep 3, 2026. Training use only. Always verify against a current Chart Supplement and sectional chart before flight; frequencies change. TowerTalk is not affiliated with the FAA. Report a discrepancy.
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