Non-towered · Class G at the surface
Grand Coulee Dam (3W7) radio calls
Electric City, WAFAA identifier 3W7; no ICAO code assigned
Grand Coulee Dam is a non-towered airport in Electric City, WA. Nobody clears you to do anything: you self-announce on the CTAF, 122.9, as Grand Coulee Dam 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
| CTAFGrand Coulee Dam Traffic | 122.9 |
|---|
Airport
- Runways
- 04 · 22
- Right-hand pattern
- Runway 22
- Elevation
- 1,593 ft
- Position
- 47.922, -119.083
Non-towered airport: self-announce on the CTAF
Sample calls at 3W7
Grand Coulee Dam 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 04; 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).
- YouGrand Coulee Dam traffic, Cessna Three One Six Zero Foxtrot, taxiing to runway zero four, Grand Coulee Dam.
- YouGrand Coulee Dam traffic, Cessna Six Zero Foxtrot, departing runway zero four, departing the pattern to the north, Grand Coulee Dam.
- 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).
- YouGrand Coulee Dam traffic, Cessna Three One Six Zero Foxtrot, one zero miles south, two thousand five hundred, landing Grand Coulee Dam, Grand Coulee Dam.
- YouGrand Coulee Dam traffic, Cessna Six Zero Foxtrot, entering left downwind runway zero four, full stop, Grand Coulee Dam.
- YouGrand Coulee Dam traffic, Cessna Six Zero Foxtrot, left base runway zero four, Grand Coulee Dam.
- YouGrand Coulee Dam traffic, Cessna Six Zero Foxtrot, final runway zero four, full stop, Grand Coulee Dam.
- YouGrand Coulee Dam traffic, Cessna Six Zero Foxtrot, clear of runway zero four, Grand Coulee Dam.
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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