Johnson County
6A4 · Mountain City, TN · Non-towered · Print kneeboard · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-18 · night begins 07:56 PM
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:46 AM | 10:46Z |
| Sunrise | 07:12 AM | 11:12Z |
| Sunset | 07:31 PM | 23:31Z |
| Evening civil twilight Loggable night begins | 07:56 PM | 23:56Z |
Plan a flight from 6A4
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
Pilot reports · Loading PIREPs…
Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
RWY 25LEFT traffic
- Heading
- 245° mag · 238° true
- Dimensions
- 4,498 × 75 ft
- TPA
- 3,200 ft MSL (≈1,000 AGL) · standard
- Surface
- Asphalt
- Lights
- 2-light PAPI (left) (4°)
- CTAF
- 122.7
Enter the left downwind (heading 065°) on the 45° at 3,200 ft MSL (≈1,000 AGL).
More details — RWY 25
- Threshold elev
- 2,241 ft
- Markings
- nonprecision
- Approach obstacle
- Tree, 97 ft, 1,797 ft from threshold, 423 ft R of centerline — 16:1 slope to clear · penetrates the 20:1 visual approach surface
- Threshold crossing height
- 39 ft
- TDZ elevation
- 2,241 ft
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 07/25 | 4,498 ft |
Prefer one flat page? Full runway details for 6A4 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 6A4 kneeboard →
Comms & NavAids
Communication frequencies
Before taxi
Taxi & takeoff
Departure & arrival
“Tri City”Also
ATC assigns the exact frequency (in your clearance or on handoff) — which one depends on your SID (departing) or STAR (arriving).
By procedure & sector (2 frequencies)
| Frequency | Used by |
|---|---|
| 263.0 | HICKORY RCAG (LOW) |
| 349.0 | APCH/P DEP/P |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
HMV 114.60 · GZG 115.55
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| HMV · Holston Mountain | VORTAC | 114.60 · 93X | Low | r098° / 14.8 NM |
| GZG · Glade Spring | VOR/DME | 115.55 · 102Y | Low | r155° / 27.3 NM |
Prefer one flat list? All 6A4 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- 6A4
- Coordinates
- 36.4179, -81.8251
- Elevation
- 2,241 ft MSL
- Magnetic variation
- 7W
- Sectional chart
- CINCINNATI
- Airport use
- Public
- Control tower
- No
- Weather station
- AWOS-3 · 126.225 · ☎ 423-727-4365
- ARTCC
- ATLANTA (ZTL)
- Flight service (FSS)
- NASHVILLE · 122.2 · 1-800-WX-BRIEF
- NOTAM facility
- BNA
- Attendance
- ALL 0900-1800
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1971/09
- Distance from city
- 4 S
Night operations
- Airport lighting
- SEE RMK
- Pilot-controlled lighting
- ACTVT PAPI RWY 07 & 25; MIRL RWY 07/25 - CTAF. on 122.7 — Chart Supplement ↗
Runway lighting aids — 07: 2-light PAPI (left) · 25: 2-light PAPI (left).
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Fuel available
- 100LL, Jet A (additive)
- Airframe service
- MAJOR
- Powerplant service
- MAJOR
- Parking
- tiedowns, hangars
- Other services
- Avionics, Glider, Instruction, Parachute ops, Rental
Ownership & management 2 contacts
Remarks FAA · 8 notes
General
- MT TRRN & HIGH PEAKS ALL QUADS; TSNT NIGHT OPS NOT RCMDD.
- DEER & BIRDS INVOF ARPT.
- COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -9C.
- FOR CD CTC ATLANTA ARTCC AT 770-210-7692.
Runways
- RWY 07 PAPI DOES NOT PRVD OBSTN CLNC BYD 1.4 NM FM THR. PAPI RWY 07 UNUSBL BYD 5 DEGS LEFT OF CNTRLN.
- PAPI RWY 25 DOES NOT PRVD OBSTN CLNC BYD 1.4 NM FM THR. RWY 25 PAPI UNUSBL BYD 8 DEGS LEFT OF CNTRLN.
Lighting
- ACTVT PAPI RWY 07 & 25; MIRL RWY 07/25 - CTAF.
Attendance
- AFT HR & SVC - AMGR.
Nearby airports
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Also nearby: NC06 Elk River (private) (16 NM) · NC14 Boone INC (private) (16 NM) · 81TN Southfork (private) (17 NM) · 0A9 William B Greene Jr Regional (17 NM) · 1TN9 Crumley Field (private) (18 NM)
About 6A4
Johnson County (6A4) is an airport in Mountain City, TN, at 2,241 ft MSL. It has 1 runway, the longest 4,498 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 6A4, refreshed from the Aviation Weather Center and FAA NASR.
Does 6A4 have a control tower?
No. Johnson County is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 6A4?
Johnson County has 1 runway; the longest is 4,498 ft. See the Runways section for headings, surface, and lighting.
Where is 6A4?
Johnson County is in Mountain City, TN, at an elevation of 2,241 ft MSL. Coordinates: 36.4179, -81.8251.
More about 6A4
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 6A4 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
Something here wrong or out of date? Report a data problem.