6A4 Johnson County Airport

Before you fly into 6A4

Conditions

VFR

Good for visual flying

Airport

Non-towered

Self-announce on CTAF

Pattern alt

3,241.1'

MSL · field 2,241.1' + 1,000 AGL

Favored RWY

RWY 25

H/W +4 · X/W 3 kt R

METAR & TAF 6A4

6A4 does not publish a METAR.

Showing the nearest reporting station: KVJI (VIRGINIA HIGHLANDS) · 19.0 NM away. Conditions at 6A4 may differ.

METAR · KVJI

Observed 23:35Z

KVJI 112335Z AUTO 27005KT 10SM CLR 28/18 A3001 RMK AO2

Wind: 270° @ 5 kt
Visibility: 10 SM
Temp / Dew: 28°C / 18°C
Altimeter: 30.01 inHg
Clouds: CLR
Density alt: 4,227 ft
Ceiling: Unlimited
Rules: VFR

6A4 does not issue a TAF.

Showing the forecast from the nearest station: KTRI (TRI-CITIES) · 28.3 NM away. Conditions at 6A4 may differ.

Forecast · TAF

Valid 12 00:00Z–13 00:00Z

TAF KTRI 112337Z 1200/1224 25008KT P6SM SCT050 SCT250 FM120300 24004KT P6SM FEW250 FM121500 26011G19KT P6SM BKN040 BKN100 PROB30 1218/1224 2SM TSRA BR BKN100CB

BASEVFR

12 00:00Z–12 03:00Z

Wind: 250° at 8 kt
Visibility: ≥ 6 SM
Sky: Scattered 5,000 ft, Scattered 25,000 ft
Weather: None forecast

00Z

03Z

06Z

09Z

12Z

15Z

18Z

21Z

00Z

NOW

How to read

The top lane is always the active baseline (BASE + FM). Secondary lanes stack temporary and probabilistic deviations in the order they appear in the TAF.

Tap any pill to see the decoded conditions for that period.

Change indicators

BASEBase

Initial conditions at the start of the forecast.

FMFrom

A new baseline that replaces the previous forecast completely, starting at the stated time.

BECMGBecoming

Conditions change gradually over the window shown. By the end, the new conditions apply.

TEMPOTemporary

Fluctuating conditions lasting less than an hour at a time within the window — not the dominant forecast.

PROB30/40Probability

30 or 40% chance of the conditions occurring within the period. Never combined with BECMG.

Airport info & contacts

Manager on record, flight service, ARTCC, attendance schedule and pattern altitude — published by the FAA and refreshed every 28 days.

Location

From city: 4 NM S
VFR sectional: CINCINNATI
ARTCC: ZTL · ATLANTA
NOTAM facility: BNA (NOTAM-D)

Airport manager

Name: DAVE GARRIS
Phone: 423-727-1223
Address: 611 AIRPORT ROAD, MOUNTAIN CITY TN 37683

Flight service · Hours

FSS BNA: NASHVILLE1-800-WX-BRIEF
Attendance: 0900-1800

Frequencies

Tap any row to copy the frequency to your clipboard.

Advisory / CTAF

Approach / Departure

Runways & pattern

Full page

Runway & wind

tap a runway

270° · 5 kt

See full METAR & TAF

RWY 25

231°M

Head/Tail

+4 kt

Crosswind

3 kt R

Pattern entry · RWY 25

LEFT TRAFFIC

Runway	Heading (°M)	Length	Surface	Traffic
07/25Favored	51° / 231°	4,498 ft	ASPH	07 R

Runway end performance

End	TORA	TODA	ASDA	LDA	VGSI	Approach lights	Obstruction
07	—	—	—	—	PAPI 2-box left(4°)	—	34', tree, 784' from thr, 193' R of cntrln, slope 17
25	—	—	—	—	PAPI 2-box left(4°)	—	97', tree, 1797' from thr, 423' R of cntrln, slope 16

Declared distances in feet. TORA = takeoff run available, TODA = takeoff distance, ASDA = accelerate-stop, LDA = landing distance.

Airport sketch

Runways drawn to scale from FAA survey coordinates, rendered over satellite imagery. Not for navigation.

Top-down satellite sketch of 6A4 JOHNSON COUNTY in MOUNTAIN CITY, TENNESSEE, showing runways 07/25 drawn to scale over Esri World Imagery

Approaches & charts

RNAV (GPS) RWY 07

6A4 · IAP

RNAV (GPS) RWY 07

6A4 · IAP

Services on the field

Fuel grades, oxygen, maintenance, ramp storage and lighting — as declared to the FAA by the airport operator.

Fuel & services

Fuel: 100LLA+
Airframe repair: Major
Power plant repair: Major
Other services: AVNCS,GLD,INSTR,PAJA,RNTL

Ramp & ground

Transient storage: Tie-down
Hangar
Landing fee: No fee published
Customs: Not available
Lighting schedule: SEE RMK
Wind indicator: Lighted
Segmented circle: Yes

Fuel & FBOs

Cheapest 100LL and Jet A on the field and nearby. Always confirm with the FBO before taxi.

Cheapest 100LLNearby

$5.90

KGEV·Ashe County Airport·19.7 nm

Cheapest Jet ANearby

$6.35

KMKJ·Mountain Empire Airport·36.7 nm

FBO	100LL	Jet A	Amenities
Doe Mountain Aviation Services 122.700(423) 727-1223 WebsiteTitan3d ago	$7.25	—

Doe Mountain Aviation Services
122.700(423) 727-1223
100LL
$7.25
Jet A
—

Cheaper nearby (within 50 nm)

100LL$5.90atKGEVAshe County Airport19.7 nmsave $1.35
Jet A$6.35atKMKJMountain Empire Airport36.7 nm

Airport notes

Surface conditions, obstructions, local procedures, lighting outages and other notes published with each FAA cycle.

General notes

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.

Lighting notes

ACTVT PAPI RWY 07 & 25; MIRL RWY 07/25 - CTAF.

Approach & departure obstructions

07RWY 07 PAPI DOES NOT PRVD OBSTN CLNC BYD 1.4 NM FM THR. PAPI RWY 07 UNUSBL BYD 5 DEGS LEFT OF CNTRLN.
25PAPI RWY 25 DOES NOT PRVD OBSTN CLNC BYD 1.4 NM FM THR. RWY 25 PAPI UNUSBL BYD 8 DEGS LEFT OF CNTRLN.

Other notes

VFR OPERNS ONLY.
1AFT HR & SVC - AMGR.
AVNCSDYNON ONLY.

VFR map & nearby airports

VFR sectional. Tap any ICAO chip to open that airport.

Key facts · 6A4

Answer card

ICAO: 6A4
Name: JOHNSON COUNTY
Location: MOUNTAIN CITY, TENNESSEE
Elevation: 2,241.1 ft MSL
Traffic pattern altitude: 3,241.1 ft MSL (1,000 AGL)
Control tower: Non-towered (use CTAF)
Total runways: 1
Longest runway: 07/25 · 4,498 ft
Published ILS approaches: 0
Published frequencies: 4
Magnetic variation: 7°
Current flight rules: VFR
Current wind: 270° at 5 kt
Favored runway now: RWY 25

Johnson County Airport (6A4) is in Mountain City, Tennessee. The field elevation is 2,241.1 ft MSL. It has one runway, 07/25, which is 4,498 ft long. The airport is not towered. CTAF and UNICOM are both 122.7. Approach and departure service is on 134.425 and 349.0 with Tri City. No ILS approaches are published, so plan for VFR operations only.

Pattern altitude is not published. Use the standard 1,000 ft AGL for light piston aircraft unless current local guidance says otherwise. Doe Mountain Aviation Services is on the field. It carries 100LL and Jet A. Call (423) 727-1223 for current service details before you go.

The Chart Supplement remarks matter here. This is a cold temperature airport, so altitude correction is required at or below minus 9 degrees Celsius. Mountainous terrain and high peaks are present in all quadrants. Night transient operations are not recommended. Runway 07 and 25 have medium intensity runway lights and PAPI. The PAPI on 07 is not usable beyond 5 degrees left of centerline. The PAPI on 25 is not usable beyond 8 degrees left of centerline. Deer and birds are also reported in the area. For clearance delivery, contact Atlanta Center at 770-210-7692. After hours and service are available through the airport manager.

Frequently asked questions

What is the runway length at Johnson County Airport (6A4)?

The runway is 07/25 and it is 4,498 ft long. That is the longest runway on the field.

Does 6A4 have an ILS approach?

No ILS approaches are published for 6A4. Plan for VFR operations and verify current procedures in the FAA Chart Supplement before departure.

What is the pattern altitude at 6A4?

Pattern altitude is not published. Use the standard 1,000 ft AGL for light piston aircraft unless current local guidance says otherwise.

Is Johnson County Airport towered?

No. 6A4 is a non-towered airport. Use CTAF 122.7 for self-announce traffic.

Which FBO is on the field at 6A4?

Doe Mountain Aviation Services is on the field. It carries 100LL and Jet A. Call (423) 727-1223 for current service details.

What should I know about night operations at 6A4?

The Chart Supplement says transient night operations are not recommended. The airport also has mountainous terrain and high peaks in all quadrants, so plan conservatively.

Does 6A4 have runway lights and PAPI?

Yes. Medium intensity runway lights are available on runways 07 and 25. PAPI is also available on both ends.

Are there any cold weather or terrain cautions at 6A4?

Yes. This is a cold temperature airport, so altitude correction is required at or below minus 9 degrees Celsius. Mountainous terrain and high peaks are present in all quadrants.

6A4