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KONZ

ICAO KONZLocal ONZ

GROSSE ILE MUNI

PublicPUB

2 miles S of DETROIT/GROSSE ILE, MI, US

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Status

Operational

Coordinates

42° 05' 57"N 83° 09' 41"W

Elevation

591' MSL

Pattern Alt

1591' MSL

Mag Variation

7°W

Declination

7°W

Fuel

JET A, 100LL

FSS

LANSING (LAN)

Sectional

DETROIT

ARTCC

CLEVELAND (ZOB)

Data Effective

7/9/26-8/6/26

KONZ VFR

9:35 PM EDT RAW

Clear

Viz

10sm

Temp

77°F

Dew

70°F

Pres

30.14"Hg

Wind

200° 4kts

RMK

AO2

METAR KONZ 140135Z AUTO 20004KT 10SM CLR 25/21 A3014 RMK AO2

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KONZ FBOs

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Millennium Flight

UNICOM: 123.0

Phone: (734) 692-6424

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Grosse Ile Municipal Airport

UNICOM: 123.0

Phone: (734) 675-0155

Other: (734) 692-6424

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Phillips 66

As of 6/28	100LL	JET A	JET A (FSII)	MOGAS	UL94
Self Serve	6.52	6.02
Full Serve

Fuel Notes

Prices include tax
Assistance is available for self-serve 100LL and JET A.

Your Information

Business

Weather and Advisory

AWOS-3P	119.675
(734) 692-9686

Common

CTAF	123.0
ACTVT REIL RWY 04 & 22; PAPI RWY 04, 22, 17, & 35; MIRL RWY 04/22 & 17/35 - CTAF.
UNICOM	123.0

Approach

DETROIT APPROACH

134.3

Departure

DETROIT DEPARTURE

134.3

FAA A/FD Pages

FAA A/FD Page

Airport Minimums

Departure Procedures

Instrument Approach

Terminal Area Forecast

KDTW (11nm)

RAW

Reported

Mon, 7/13 7:41 PM EDT

Valid

Mon, 7/13 8:00 PM EDT - Wed, 7/15 2:00 AM EDT

VFR

8:00 PM EDT - 9:00 PM EDT

Few 25,000'

Viz

6sm

Wind

250° 6kts

VFR

9:00 PM EDT - 10:00 AM EDT

Scattered 25,000'

Viz

6sm

Wind

230° 5kts

VFR

10:00 AM EDT - 4:00 PM EDT

Scattered 25,000'

Viz

6sm

Wind

260° 8kts

VFR

4:00 PM EDT - 2:00 AM EDT

Sky Clear

Viz

6sm

Wind

250° 10kts

TAF KDTW 132341Z 1400/1506 25006KT P6SM FEW250
   FM140100 23005KT P6SM SCT250
   FM141400 26008KT P6SM SCT250
   FM142000 25010KT P6SM SKC

KONZ

Effective	Expires	Category	NOTAM
Domestic
6/30/26 1228Z		Runway	!ONZ 06/021 ONZ RWY 04 RWY END ID LGT U/S 2606301228-2701062111EST
6/30/26 1228Z		Runway	!ONZ 06/020 ONZ RWY 04 PAPI U/S 2606301228-2701062111EST
6/30/26 1226Z		Runway	!ONZ 06/019 ONZ RWY 22 RWY END ID LGT U/S 2606301226-2701062111EST
6/24/26 1954Z	8/8/26 1953Z		!ONZ 06/018 ONZ OBST TOWER LGT (ASR 1006094) 421005.00N0831254.00W (4.8NM NNW ONZ) 1305.1FT (710.0FT AGL) U/S 2606241954-2608081953
6/24/26 1708Z	9/24/26 2359Z		!ONZ 06/015 ONZ AD AP WILDLIFE HAZARD NEAR MOV AREAS 2606241708-2609242359
6/24/26 1707Z	9/24/26 2359Z	Runway	!ONZ 06/014 ONZ RWY 22 PAPI U/S 2606241707-2609242359
6/24/26 1706Z	9/24/26 2359Z	Runway	!ONZ 06/013 ONZ RWY 17/35 CLSD 2606241706-2609242359
6/10/26 1728Z	7/25/26 1727Z		!ONZ 06/005 ONZ OBST TOWER LGT (ASR 1006095) 421008.00N0831249.00W (4.8NM NNW ONZ) 912.1FT (315.9FT AGL) U/S 2606101728-2607251727
FDC
7/7/26 2050Z			!FDC 6/3655 ONZ IAP GROSSE ILE MUNI, DETROIT/GROSSE ILE, MI. RNAV (GPS) RWY 22, AMDT 2... HOLD IN LIEU OF PT (UFDIV IF/IAF) MINIMUM ALTITUDE 2500. INTERMEDIATE FIX CROSSING ALTITUDE AT UFDIV 2500. INITIAL SEGMENT YEGHI (IAF) TO UFDIV (IF/IAF) MINIMUM ALTITUDE 2500. TEMPORARY CRANE 1449FT MSL 11.3NM NE OF RWY 22 (2024-AGL-8166-OE). 2607072050-2611302050EST
7/7/26 2049Z			!FDC 6/3652 ONZ IAP GROSSE ILE MUNI, DETROIT/GROSSE ILE, MI. RNAV (GPS) RWY 4, ORIG-B... CHANGE MISSED APPROACH INSTRUCTIONS TO READ: CLIMB TO 2500 DIRECT UFDIV AND HOLD. TEMPORARY CRANE 1449FT MSL 11.3NM NE OF RWY 22 (2024-AGL-8166-OE). 2607072049-2611302049EST
2/12/26 2000Z	2/21/28 2000Z		!FDC 6/3462 ONZ STAR GROSSE ILE MUNICIPAL AIRPORT, DETROIT/GROSSE ILE, MI PETTE TWO ARRIVAL... HOSSA TRANSITION: MOCA 2800 HOSSA TO PETTE. QBURT TRANSITION: MOCA 2800 HAZIT TO PETTE. TORRR TRANSITION: MOCA 2800 HAZIT TO PETTE. WWODD TRANSITION: MOCA 2800 HAZIT TO PETTE. ALL OTHER DATA REMAINS AS PUBLISHED. 2602122000-2802212000
12/17/25 1445Z			!FDC 5/0302 ONZ IAP GROSSE ILE MUNI, DETROIT/GROSSE ILE, MI. VOR-A, AMDT 8... PROCEDURE NA. 2512171445-2712161445EST

ATC Tower

Attendance

MON-FRI 0800-1800
SAT-SUN PRIOR ARNGMT

Owner

TOWNSHIP OF GROSSE ILE
PO BOX 129 PO BOX 129
GROSSE ILE, MI 48138
Phone: 734-675-0155

Manager

JANEL MACNEE
P.O. BOX 129 PO BOX 129
GROSSE ILE, MI 48138
Phone: 734-675-0155

FSS

LANSING FSS (LAN)
Toll Free: 1-800-WX-BRIEF

NOTAM

ONZ

Light Schedule

Lights

ACTVT REIL RWY 04 & 22; PAPI RWY 04, 22, 17, & 35; MIRL RWY 04/22 & 17/35 - CTAF.

Beacon

N/A

Wind Indicator

Yes - Lighted

Segmented Cir.

Yes

Landing Fee

Parking

Hanger, Tie-Down

Int'l Operations

NOT a Landing Rights Airport
NOT an Airport of Entry

Airframe Repair

Major

Pwrplant Repair

Major

Bottled Oxygen

None

Bulk Oxygen

None

Other Services

Charter Service
Pilot Instruction
Aircraft Rental

Runway 04/22

Dimensions

4846 ft. x 100 ft.

Surface Type

ASPH

Surface Cond

Good

Treatment

NONE

Rwy Edge Lgts

MED

Pavement Class

Single Wheel

66,000lbs

Double Wheel

83,000lbs

Double Tandem

105,000lbs

Dual Dbl Tand

	Runway 04	Runway 22
True Heading	30°	210°
Traffic Pattern	Right	Left
Markings	NPI	NPI
Markings Condition	GOOD	GOOD
Latitude	42° 05' 36"N	42° 06' 17"N
Longitude	83° 09' 45"W	83° 09' 12"W
Elevation	577'	589'
Threshold Crossing Height	40 ft. AGL	40 ft. AGL
Visual Glide Path Angle	3.04°	3.04°
Visual Slope Indicator	P4L	P4L
Approach Lights
Centerline Lights	No	No
Runway End Identifier Lights	Yes	Yes

Runway 17/35

Dimensions

4424 ft. x 75 ft.

Surface Type

CONC

Surface Cond

Poor

Treatment

NONE

Rwy Edge Lgts

MED

Pavement Class

Single Wheel

40,000lbs

Double Wheel

55,000lbs

Double Tandem

90,000lbs

Dual Dbl Tand

	Runway 17	Runway 35
True Heading	167°	347°
Traffic Pattern	Left	Right
Markings	BSC	BSC
Markings Condition	FAIR	FAIR
Latitude	42° 06' 18"N	42° 05' 35"N
Longitude	83° 10' 02"W	83° 09' 49"W
Elevation	581'	578'
Threshold Crossing Height	26 ft. AGL	20 ft. AGL
Visual Glide Path Angle	3°	3°
Visual Slope Indicator	P4L	P4L
Approach Lights
Centerline Lights	No	No
Runway End Identifier Lights	No	No

Runway H1

Dimensions

25 ft. x 25 ft.

Surface Type

Surface Cond

CONC

Treatment

NONE

Rwy Edge Lgts

Pavement Class

Single Wheel

Double Wheel

Double Tandem

Dual Dbl Tand

	Runway H1	Runway
True Heading	Not Listed	Not Listed
Traffic Pattern
Markings
Markings Condition
Latitude	42° 06' 19"N	N/A
Longitude	83° 09' 28"W	N/A
Elevation	595'	--
Threshold Crossing Height	--	--
Visual Glide Path Angle	--	--
Visual Slope Indicator	--	--
Approach Lights
Centerline Lights
Runway End Identifier Lights

Runway H2

Dimensions

25 ft. x 25 ft.

Surface Type

Surface Cond

CONC

Treatment

NONE

Rwy Edge Lgts

Pavement Class

Single Wheel

Double Wheel

Double Tandem

Dual Dbl Tand

	Runway H2	Runway
True Heading	Not Listed	Not Listed
Traffic Pattern
Markings
Markings Condition
Latitude	42° 06' 19"N	N/A
Longitude	83° 09' 27"W	N/A
Elevation	594'	--
Threshold Crossing Height	--	--
Visual Glide Path Angle	--	--
Visual Slope Indicator	--	--
Approach Lights
Centerline Lights
Runway End Identifier Lights

A110-1	BIRDS & DEER ON & INVOF ARPT.
A110-2	ULTRALIGHT & PWRD PRCHT ACT INVOF ARPT.
A110-4	FOR CD CTC DETROIT APCH AT 734-955-1404.
A26	ARPT CLSD TO ACR OPS GTR THAN 30 PAX SEATS EXC PPR CALL AMGR.
A33-17/35_COND	EXTSV PEELING & CRACKING - FOD HAZ.
A57-22	APCH RATIO 20:1 TO DTHR.
A81-APT	ACTVT REIL RWY 04 & 22; PAPI RWY 04, 22, 17, & 35; MIRL RWY 04/22 & 17/35 - CTAF.

GROSSE ILE MUNI (ICAO: KONZ, IATA: ONZ) is a public airport located in DETROIT/GROSSE ILE, MI, US.

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