Johnson County
6A4 · Mountain City, Tennessee · Johnson County · map
Johnson County is a public-use airport owned by Johnson County, 4 miles south of Mountain City, Tennessee, 2,241 feet above sea level. Its one runway, 07/25, is 4,498 feet of asphalt. It has fuel (100LL avgas, Jet A with additive).
The airport
- Codes
- FAA 6A4
- Kind
- Airport · open to the public · publicly owned
- Owner
- Johnson County
- Elevation
- 2,241 feet above sea level
- Control tower
- No control tower
- Attended
- every day, 9:00 am to 6:00 pm
- Lights
- runway lights see the remarks below
- Fuel
- 100LL avgas, Jet A with additive
- Repairs
- airframe: major repairs; engine: major repairs
- Parking
- hangar, tiedown
- On the chart
- Cincinnati sectional
- Magnetic variation
- 7W
- In the FAA's files since
- September 1971
Runway
For understanding the field, not for navigation.
| Runway | Length × width | Surface | Lights |
|---|---|---|---|
| 07/25 | 4,498 × 75 ft | Asphalt, good | Medium-intensity lights |
- Runway 07: PAPI, two lights on the left, right-hand traffic pattern, tree 34 ft high 784 ft from the end
- Runway 25: PAPI, two lights on the left, tree 97 ft high 1,797 ft from the end
Radio frequencies
| Common traffic advisory (CTAF) · UNICOM | 122.7 | |
| Approach and departure | 134.425 | |
| Hickory and center (remote transmitter) Low | 125.15 | |
| 6A4 AWOS-3 | 126.225 |
Automated weather (AWOS-3), by phone 423-727-4365.
Wind map live wind over the area, from Windy.com
Colours show wind speed, the moving lines its direction; drag the time bar for the coming days. Map and forecast by Windy.com.
Aircraft registered in Mountain City from the FAA register
8 aircraft are registered to owners in Mountain City, Tennessee: 8 piston singles. Not every one of them is based at this airport; the based-aircraft count above is the FAA's figure for this airport alone.
Individuals are counted, never named. All aircraft registered in Tennessee.
Accidents and incidents at or near this airport NTSB records · 2 since 1982, 0 fatal
Cases the NTSB recorded with this as the nearest airport, newest first. Each opens the full report in plain English.
Nearby within 30 nautical miles
The FAA's remarks as written in the airport file
- VFR operns only.
- MT trrn and high peaks all quads; transient night operations not recommended.
- Activate PAPI runway 07 and 25; medium-intensity runway lights runway 07/25 - the common traffic frequency.
- Aft hour and service - amgr.
- Dynon only.
- Runway 07 PAPI does not provide obstruction clnc beyond 1.4 NM from threshold. PAPI runway 07 unusable beyond 5 degreess left of centerline.
- PAPI runway 25 does not provide obstruction clnc beyond 1.4 NM from threshold. Runway 25 PAPI unusable beyond 8 degreess left of centerline.
- Deer and birds in the vicinity of airport.
- Cold temperature airport. Altitude correction required at or below -9C.
Facts from the FAA's airport file effective October 1, 2026, written out in plain English; weather from the National Weather Service's aviation weather service; registered aircraft from the FAA register as of October 5, 2026; accidents from the NTSB's public database. Owners are shown only when they are an organisation; no person is named. Check the official sources before a flight: this page is for understanding an airport, not for planning one.