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KONZ Grosse Ile Municipal Airport
Detroit/Grosse Ile, Michigan, USA

GOING TO DETROIT/GROSSE ILE?


FAA INFORMATION EFFECTIVE 10 JULY 2025

Location

FAA Identifier: ONZ
Lat/Long: 42-05-56.6810N 083-09-41.2560W
42-05.944683N 083-09.687600W
42.0990781,-83.1614600
(estimated)
Elevation: 590.5 ft. / 180.0 m (surveyed)
Variation: 07W (2010)
From city: 2 miles S of central business district of the associated city
Time zone: UTC -4 (UTC -5 during Standard Time)
Zip code: 48138

Airport Operations

Airport use: Open to the public
Activation date: 05/1941
Control tower: no
ARTCC: CLEVELAND CENTER
FSS: LANSING FLIGHT SERVICE STATION
NOTAMs facility: ONZ (NOTAM-D service available)
Attendance: MON-FRI 0800-1800, ALL SAT-SUN PRIOR ARNGMT
Wind indicator: lighted
Segmented circle: yes
Lights: ACTVT REIL RWY 04 & 22; PAPI RWY 04, 22, 17, & 35; MIRL RWY 04/22 & 17/35 - CTAF.
Beacon: white-green (lighted land airport)
Operates sunset to sunrise.
Airline operations: ARPT CLSD TO ACR OPS GTR THAN 30 PAX SEATS EXC PPR CALL AMGR.

Airport Communications

CTAF/UNICOM: 123.0
WX AWOS-3: 119.675 (734-692-9686)
DETROIT APPROACH: 134.3
DETROIT DEPARTURE: 134.3
WX ASOS at DTW (11 nm NW): PHONE 231-202-2054
WX AWOS-3 at TTF (15 nm SW): 119.075 (734-384-0259)
WX ASOS at YIP (19 nm NW): PHONE 734-961-6843
WX ASOS at DET (20 nm N): PHONE 313-371-9696

Nearby radio navigation aids

VOR radial/distance  VOR name  Freq  Var
DXOr133/11.4DETROIT VOR/DME113.4006W
CRLr080/13.5CARLETON VOR/DME115.7003W
SVMr137/26.7SALEM VORTAC114.3003W

 
NDB name  Hdg/Dist  Freq  Var  ID
TECUMSEH089/32.523906WTCU - -.-. ..-

Airport Services

Fuel available: 100LL JET-A
Parking: hangars and tiedowns
Airframe service: MAJOR
Powerplant service: MAJOR
Bottled oxygen: NONE
Bulk oxygen: NONE

Runway Information

Runway 4/22

Dimensions: 4846 x 100 ft. / 1477 x 30 m
Surface: asphalt, in good condition
Weight bearing capacity: 
Single wheel: 66.0
Double wheel: 83.0
Double tandem: 105.0
Runway edge lights: medium intensity
RUNWAY 4  RUNWAY 22
Latitude: 42-05.601227N42-06.289745N
Longitude: 083-09.742193W083-09.200983W
Elevation: 576.8 ft.589.3 ft.
Traffic pattern: rightleft
Runway heading: 037 magnetic, 030 true217 magnetic, 210 true
Displaced threshold: no428 ft.
Markings: nonprecision, in good conditionnonprecision, in good condition
Visual slope indicator: 4-light PAPI on left (3.04 degrees glide path)4-light PAPI on left (3.04 degrees glide path)
Runway end identifier lights: yesyes
Touchdown point: yes, no lightsyes, no lights
Obstructions: 37 ft. tree, 790 ft. from runway, 308 ft. left of centerline, 15:1 slope to clear65 ft. trees, 1010 ft. from runway, 344 ft. left of centerline, 12:1 slope to clear
APCH RATIO 20:1 TO DTHR.

Runway 17/35

Dimensions: 4424 x 75 ft. / 1348 x 23 m
Surface: concrete, in poor condition
EXTSV PEELING & CRACKING - FOD HAZ.
Weight bearing capacity: 
Single wheel: 40.0
Double wheel: 55.0
Double tandem: 90.0
Runway edge lights: medium intensity
RUNWAY 17  RUNWAY 35
Latitude: 42-06.298312N42-05.589238N
Longitude: 083-10.036057W083-09.812280W
Elevation: 581.3 ft.578.3 ft.
Traffic pattern: leftright
Runway heading: 174 magnetic, 167 true354 magnetic, 347 true
Displaced threshold: 672 ft.no
Markings: basic, in fair conditionbasic, in fair condition
Visual slope indicator: 4-light PAPI on left (3.00 degrees glide path)4-light PAPI on left (3.00 degrees glide path)
Runway end identifier lights: nono
Touchdown point: yes, no lightsyes, no lights
Obstructions: 80 ft. trees, 1180 ft. from runway, 40 ft. right of centerline, 12:1 slope to clearnone

Helipad H1

Dimensions: 25 x 25 ft. / 8 x 8 m
Surface: concrete
Latitude: 42-06.319333N
Longitude: 083-09.471333W
Elevation: 595.0 ft.
Traffic pattern: leftleft

Helipad H2

Dimensions: 25 x 25 ft. / 8 x 8 m
Surface: concrete
Latitude: 42-06.318500N
Longitude: 083-09.449667W
Elevation: 594.0 ft.
Traffic pattern: leftleft

Airport Ownership and Management from official FAA records

Ownership: Publicly-owned
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

Additional Remarks

BIRDS & DEER ON & INVOF ARPT.
ULTRALIGHT & PWRD PRCHT ACT INVOF ARPT.
FOR CD CTC DETROIT APCH AT 734-955-1404.

Instrument Procedures

NOTE: All procedures below are presented as PDF files. If you need a reader for these files, you should download the free Adobe Reader.

NOT FOR NAVIGATION. Please procure official charts for flight.
FAA instrument procedures published for use from 10 July 2025 at 0901Z to 07 August 2025 at 0900z.

 
STARs - Standard Terminal Arrivals
FOREY TWO (RNAV)   download (159KB)
GIGGY TWO (RNAV)   download (139KB)
PETTE TWO (RNAV)   download (210KB)
RRALF THREE (RNAV)   download (161KB)
 
IAPs - Instrument Approach Procedures
RNAV (GPS) RWY 04   download (185KB)
RNAV (GPS) RWY 22   download (197KB)
VOR-A   download (196KB)
NOTE: Special Alternate Minimums apply   download (140KB)
 
Departure Procedures
BARII THREE (RNAV)   download (178KB)
CCOBB THREE (RNAV)   download (215KB)
CLVIN THREE (RNAV)   download (198KB)
HHOWE FOUR (RNAV)   download (203KB)
KAYLN THREE (RNAV)   download (183KB)
KZLOV TWO (RNAV)   download (178KB)
LIDDS FOUR (RNAV)   download (202KB)
MIGGY THREE (RNAV)   download (215KB)
PAVYL THREE (RNAV)   download (191KB)
SNDRS THREE (RNAV)   download (230KB)
TRMML FOUR (RNAV)   download (182KB)
ZETTR FOUR (RNAV)   download (225KB)
NOTE: Special Take-Off Minimums/Departure Procedures apply   download (208KB)

Other nearby airports with instrument procedures:

KDTW - Detroit Metro Wayne County Airport (11 nm NW)
KTTF - Custer Airport (15 nm SW)
KYIP - Willow Run Airport (19 nm NW)
1D2 - Canton-Plymouth-Mettetal Airport (20 nm NW)
KDET - Coleman A Young Municipal Airport (20 nm N)
 
Loc | Ops | Rwys | IFR | FBO | Links
Com | Nav | Svcs | Stats | Notes
Area around KONZ (Grosse Ile Municipal Airport)
 
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Aerial photo
WARNING: Photo may not be current or correct
Aerial photo of KONZ (Grosse Ile Municipal Airport)
Photo by Cathy Vajtay
Photo taken 21-Jun-2015
looking southeast.

Do you have a better or more recent aerial photo of Grosse Ile Municipal Airport that you would like to share? If so, please send us your photo.

 
Sectional chart

 
Airport distance calculator
Flying to Grosse Ile Municipal Airport? Find the distance to fly.

From to KONZ

Sunrise and sunset
Times for 30-Jul-2025
 Local
(UTC-4)
 Zulu
(UTC)
Morning civil twilight05:5309:53
Sunrise06:2510:25
Sunset20:5300:53
Evening civil twilight21:2501:25

Current date and time
Zulu (UTC)  30-Jul-2025 06:54:40
Local (UTC-4)  30-Jul-2025 02:54:40
 
METAR
KONZ 300635Z AUTO 01001KT 10SM FEW120 23/22 A3004 RMK AO2
KDTW 
11nm NW 
300553Z 00000KT 8SM FEW250 24/22 A3006 RMK AO2 SLP174 T02440217 10289 20244 58003
CXHA 
12nm E 
300600Z AUTO 26001KT 22/22 RMK AO1 SLP173 T02200220 58002
CYQG 
14nm NE 
300634Z AUTO 14002KT 1 1/2SM BR CLR 22/22 A3004 RMK RVR MISG SLP171 DENSITY ALT 1400FT
KTTF 
15nm SW 
300636Z AUTO 25001KT 7SM BR CLR 23/22 A3004 RMK AO2
KYIP 
18nm NW 
300553Z 00000KT 10SM CLR 23/22 A3006 RMK AO2 SLP170 T02280222 10294 20228 58005
KDET 
19nm N 
300553Z 00000KT 10SM CLR 24/21 A3005 RMK AO2 SLP171 T02440211 10306 20239 58004
TAF
KDTW 
11nm NW 
300520Z 3006/3112 VRB03KT P6SM SCT250 FM301400 36006KT P6SM SCT040 SCT250 FM301900 02008KT P6SM BKN060 BKN250 PROB30 3023/3103 3SM -TSRA SCT035CB OVC050 FM310300 02009KT P6SM -SHRA BKN050 OVC100 FM311000 03009KT 5SM -SHRA BKN040 OVC060
CYQG 
14nm NE 
300547Z 3006/3106 VRB03KT P6SM SKC TEMPO 3006/3012 2SM BR PROB30 3008/3012 1SM BR FM301400 03010KT P6SM SCT050 FM310000 03010G20KT P6SM BKN050 FM310500 02015G25KT P6SM -RA OVC050 RMK FCST BASED ON AUTO OBS. NXT FCST BY 301200Z
KYIP 
18nm NW 
300520Z 3006/3106 VRB03KT P6SM SCT250 FM301400 36006KT P6SM SCT040 SCT250 FM301900 02008KT P6SM BKN060 BKN250 PROB30 3023/3103 3SM -TSRA SCT035CB OVC050 FM310300 02009KT P6SM -SHRA BKN060 OVC100
KDET 
19nm N 
300520Z 3006/3106 VRB03KT P6SM SCT250 FM301400 36006KT P6SM SCT040 SCT250 FM301900 02008KT P6SM BKN060 BKN250 PROB30 3023/3103 3SM -TSRA SCT035CB OVC050 FM310300 02009KT P6SM -SHRA BKN060 OVC100
NOTAMs
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FBO, Fuel Providers, and Aircraft Ground Support

  
 Business Name 
 
 Contact 
 
 Services / Description 
 
Fuel Prices
 
Comments
  
 Grosse Ile Municipal Airport
734-675-0155
734-692-6424
[web site]
[email]
Airport management, Aviation fuel, Aircraft parking (ramp or tiedown), Hangars, Hangar leasing / sales, Passenger terminal and lounge, ...

More info about Grosse Ile Municipal Airport
Phillips 66
100LL Jet A
AS $5.54 $4.80 
 Updated 16-Jul-2025
 
   write
AS=Assisted/Self Service
Update Fuel Prices
 

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Other Pages about Grosse Ile Municipal Airport

www.grosseileairport.com
Page from the Michigan Airport Directory (PDF)
 
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