Non-towered · Class G at the surface
Dorothy Scott International (0S7) radio calls
Oroville, WAFAA identifier 0S7; no ICAO code assigned
Dorothy Scott International is a non-towered airport in Oroville, WA. Nobody clears you to do anything: you self-announce on the CTAF, 122.9, as Dorothy Scott International 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
| CTAFDorothy Scott International Traffic | 122.9 |
|---|
Airport
- Runways
- 15 · 33
- Right-hand pattern
- Runway 15
- Elevation
- 1,069 ft
- Position
- 48.959, -119.412
Non-towered airport: self-announce on the CTAF
Sample calls at 0S7
Dorothy Scott International has no operating control tower. Every call below goes out on the CTAF, 122.9, to the other aircraft, not to a controller. The runway shown is 15, which has a right-hand pattern; 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 122.9. 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).
- YouDorothy Scott International traffic, Cessna Three One Six Zero Foxtrot, taxiing to runway one five, Dorothy Scott International.
- YouDorothy Scott International traffic, Cessna Six Zero Foxtrot, departing runway one five, departing the pattern to the north, Dorothy Scott International.
- 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).
- YouDorothy Scott International traffic, Cessna Three One Six Zero Foxtrot, one zero miles south, two thousand five hundred, landing Dorothy Scott International, Dorothy Scott International.
- YouDorothy Scott International traffic, Cessna Six Zero Foxtrot, entering left downwind runway one five, full stop, Dorothy Scott International.
- YouDorothy Scott International traffic, Cessna Six Zero Foxtrot, left base runway one five, Dorothy Scott International.
- YouDorothy Scott International traffic, Cessna Six Zero Foxtrot, final runway one five, full stop, Dorothy Scott International.
- YouDorothy Scott International traffic, Cessna Six Zero Foxtrot, clear of runway one five, Dorothy Scott International.
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 →
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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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