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Non-towered · Class G at the surface

Crystal Lake (5M5) radio calls

Decatur, ARFAA identifier 5M5; no ICAO code assigned

Crystal Lake is a non-towered airport in Decatur, AR. Nobody clears you to do anything: you self-announce on the CTAF, 122.8, as Crystal Lake Traffic, with the airport name at the start and end of each call. The approach control for the area is Razorback Approach on 121.0, which is who you call for VFR flight following.

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

Clearance Delivery126.6
CTAFCrystal Lake Traffic122.8
Approach / DepartureRazorback Approach121.0

Airport

Runways
13 · 31
Elevation
1,178 ft
Position
36.344, -94.445

Non-towered airport: self-announce on the CTAF

Sample calls at 5M5

Crystal Lake 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 13; 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.

  1. 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).
  2. YouCrystal Lake traffic, Cessna Three One Six Zero Foxtrot, taxiing to runway one three, Crystal Lake.
  3. YouCrystal Lake traffic, Cessna Six Zero Foxtrot, departing runway one three, departing the pattern to the north, Crystal Lake.
  4. 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).
  5. YouCrystal Lake traffic, Cessna Three One Six Zero Foxtrot, one zero miles south, two thousand five hundred, landing Crystal Lake, Crystal Lake.
  6. YouCrystal Lake UNICOM, Cessna Six Zero Foxtrot, one zero miles south, request wind and runway information, Crystal Lake.
  7. 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.
  8. YouCrystal Lake traffic, Cessna Six Zero Foxtrot, entering left downwind runway one three, full stop, Crystal Lake.
  9. YouCrystal Lake traffic, Cessna Six Zero Foxtrot, left base runway one three, Crystal Lake.
  10. YouCrystal Lake traffic, Cessna Six Zero Foxtrot, final runway one three, full stop, Crystal Lake.
  11. YouCrystal Lake traffic, Cessna Six Zero Foxtrot, clear of runway one three, Crystal Lake.

If things change. Want flight following after departure? Call Razorback Approach on 121.0 once clear of the pattern: identification, type, position, altitude, destination, "request VFR flight following" (AIM 4-1-18 a 3). 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).

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

Nearby in Arkansas

Frequencies, runways and airspace from the FAA National Airspace System Resources (NASR) 28-day subscription, cycle effective Oct 29, 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.