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ST CLAIR COUNTY INTL - Airport Diagram
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KPHN
ICAO KPHNIATA PHNLocal PHN
ST CLAIR COUNTY INTL
PublicPUB

5 miles SW of PORT HURON, MI, US
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Status
Operational
Coordinates
42° 54' 39"N 82° 31' 44"W
Elevation
650' MSL
Pattern Alt
1650' MSL
Mag Variation
8°W
Declination
7°W
Fuel
JET A (FSII), 100LL
FSS
LANSING (LAN)
Sectional
DETROIT
ARTCC
CLEVELAND (ZOB)
Data Effective
5/14/26-6/11/26
KPHN VFR
3:15 AM EDT  
Clear
10sm
50°F
46°F
30.20"Hg
Calm
AO2
METAR KPHN 040715Z AUTO 00000KT 10SM CLR 10/08 A3020 RMK AO2
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KPHN FBOs

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St. Clair County International Airport
UNICOM: 123.05
Phone: (810) 364-4187
No Rating Available
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Other
As of 5/27
 100LL JET A JET A (FSII) MOGAS UL94
Self Serve 5.81
Full Serve 6.41 6.50
Fuel Notes
Prices include tax
JET A is premixed with Prist (FSII).
Fuel Hours
Fuel services hours 7 a.m. - 5 p.m. EST, 24 hr Avgas self-serve
Volume Discounts
Callout after hours available, service fees apply (810-364-4187).

KPHN Aircraft Service & Maintenance

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Great Lakes Aviation Services LLC
Phone: (810) 364-2181
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Weather and Advisory

AWOS-3P 118.375
(810) 364-7787

Common

CTAF 123.05
ACTVT MALSR RWY 04; REIL RWY 22, 10, & 28; PAPI RWY 10 & 28; HIRL RWY 04/22; MIRL RWY 10/28 - CTAF. PAPI RWY 04 & 22 OPR CONSLY.
UNICOM 123.05

Approach

SELFRIDGE APPROACH 119.6

Departure

SELFRIDGE DEPARTURE 119.6

Center

SELFRIDGE CENTER 126.525
HIGH, APCH/DEP SVC PRVDD BY CLEVELAND ARTCC (ZOB) ON FREQS 126.525/285.525 (ALGONAC RCAG) WHEN SELFRIDGE APCH CTL CLSD.

Terminal Area Forecast

CYZR (11nm)
Wed, 6/3 3:40 PM EDT
Wed, 6/3 4:00 PM EDT - Wed, 6/3 10:00 PM EDT
VFR
4:00 PM EDT - 7:00 PM EDT
Sky Clear
6sm
010° 10kts
VFR
Becoming 7:00 PM EDT - 10:00 PM EDT
Sky Clear
6sm
200° 5kts
TAF CYZR 031940Z 0320/0402 01010KT P6SM SKC
   BECMG 0323/0401 20005KT RMK FCST BASED ON AUTO OBS. NXT FCST BY 040800Z
KPHN
EffectiveExpiresCategoryNOTAM
Domestic
6/4/26
1300Z
6/4/26
2100Z
!PHN 06/002 PHN NAV ILS RWY 04 PHURN LOM U/S 2606041300-2606042100
6/4/26
1300Z
6/4/26
2100Z
!PHN 06/001 PHN NAV ILS RWY 04 U/S 2606041300-2606042100
6/3/26
1948Z
6/5/26
2300Z
!PHN 06/003 PHN AD AP SELF SERVE 100LL FUEL NOT AVBL 2606031948-2606052300
5/18/26
1410Z
11/30/26
2359Z
!PHN 05/002 PHN AD AP ALL SFC WIP MOWING 2605181410-2611302359
4/15/26
1539Z
7/15/26
2359Z
!PHN 04/011 PHN OBST TOWER LGT (ASR UNKNOWN) 425526.49N0822736.82W (3.7NM E PHN) 872FT (275FT AGL) U/S 2604151539-2607152359
FDC
6/4/26
1300Z
6/11/26
1909Z
!FDC 6/5331 PHN IAP ST CLAIR COUNTY INTL, PORT HURON, MI.
ILS OR LOC RWY 4, AMDT 4...
S-LOC 4: NA EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS.
MISSED APPROACH: CLIMB TO 2500 THEN CLIMBING LEFT TURN TO 4000 ON HEADING 220 AND FNT VORTAC R-097 TO MARGN INT/FNT VORTAC 48.47 DME AND HOLD, CONTINUE CLIMB-IN-HOLD TO 4000 (DME REQUIRED).
RADAR REQUIRED FOR PROCEDURE ENTRY EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS,
PHURN (PH) LOM OUT OF SERVICE. 2606041300-2606111909EST
5/14/26
1429Z
!FDC 6/0361 PHN IAP ST CLAIR COUNTY INTL, PORT HURON, MI.
ILS OR LOC RWY 4, AMDT 4...
MSA 2700.
2605141429-2803101520EST
No
0800-1700
UNATNDD MAJOR HOLS.
SAINT CLAIR COUNTY
201 MCMORRAN BLVD
PORT HURON, MI 48060
Phone: 810-364-6890
CATHERINE FIORE
177 ASH DR
KIMBALL, MI 48074
Phone: 810-364-6890
LANSING FSS (LAN)
Toll Free: 1-800-WX-BRIEF
PHN
--
ACTVT MALSR RWY 04; REIL RWY 22, 10, & 28; PAPI RWY 10 & 28; HIRL RWY 04/22; MIRL RWY 10/28 - CTAF. PAPI RWY 04 & 22 OPR CONSLY.
N/A
Yes - Lighted
Yes
Yes
Hanger, Tie-Down
NOT a Landing Rights Airport
Airport of Entry
Major
Major
None
None
None

Runway 04/22

5104 ft. x 100 ft.
ASPH  
Good 
GRVD 
HIGH 
 
40,000lbs 
55,000lbs 
90,000lbs 
-- 
  Runway 04 Runway 22
True Heading 36°216°
Traffic Pattern Left Left
Markings PIR PIR
Markings Condition GOOD GOOD
Latitude 42° 54' 17"N 42° 54' 57"N
Longitude 82° 32' 07"W 82° 31' 27"W
Elevation 640' 650'
Threshold Crossing Height 50 ft. AGL 45 ft. AGL
Visual Glide Path Angle 3° 3°
Visual Slope Indicator P4L P4L
Approach Lights MALSR
Centerline Lights No No
Runway End Identifier Lights No Yes

Runway 10/28

4000 ft. x 75 ft.
ASPH  
Good 
NONE 
MED 
 
16,000lbs 
-- 
-- 
-- 
  Runway 10 Runway 28
True Heading 95°275°
Traffic Pattern Left Left
Markings NPI NPI
Markings Condition FAIR FAIR
Latitude 42° 54' 44"N 42° 54' 41"N
Longitude 82° 32' 07"W 82° 31' 13"W
Elevation 643' 650'
Threshold Crossing Height 26 ft. AGL 33 ft. AGL
Visual Glide Path Angle 3° 3.5°
Visual Slope Indicator P4L P4L
Approach Lights
Centerline Lights No No
Runway End Identifier Lights Yes Yes
A110-1DEER & LRG BIRDS ON & INVOF ARPT.
A110-5TSATLC FLTS MUST NTFY US CUST AT 810-985-9541 ONE HR PRIOR TO ENTRY INTO THE US. NTFY US DEPT OF AGRICULTURE AT 810-985-6126 & AMGR 24 HRS PRIOR FOR DISPOSAL OF ACFT INTL TRASH.
A110-7FOR CD CTC SELFRIDGE APCH AT 586-239-5706, WHEN APCH CLSD CTC CLEVELAND ARTCC AT 440-774-0224/0490.
A17-M1UNATNDD MAJOR HOLS.
A24COML & CORPORATE LDG FEE WAIVED WITH FUEL PURCHASE.
A81-APTACTVT MALSR RWY 04; REIL RWY 22, 10, & 28; PAPI RWY 10 & 28; HIRL RWY 04/22; MIRL RWY 10/28 - CTAF. PAPI RWY 04 & 22 OPR CONSLY.
ST CLAIR COUNTY INTL (ICAO: KPHN, IATA: PHN) is a public airport located in PORT HURON, MI, US.