FAA INFORMATION EFFECTIVE 25 DECEMBER 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 -5 (UTC -4 during Daylight Saving 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 |
| DXOr133/11.4 | | DETROIT VOR/DME | | 113.40 | | 06W |
| CRLr080/13.5 | | CARLETON VOR/DME | | 115.70 | | 03W |
| SVMr137/26.7 | | SALEM VORTAC | | 114.30 | | 03W |
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 |
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| Runway edge lights: | medium intensity |
| RUNWAY 4 | | RUNWAY 22 |
| Latitude: | 42-05.601227N | | 42-06.289745N |
| Longitude: | 083-09.742193W | | 083-09.200983W |
| Elevation: | 576.8 ft. | | 589.3 ft. |
| Traffic pattern: | right | | left |
| Runway heading: | 037 magnetic, 030 true | | 217 magnetic, 210 true |
| Displaced threshold: | no | | 428 ft. |
| Markings: | nonprecision, in good condition | | nonprecision, 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: | yes | | yes |
| Touchdown point: | yes, no lights | | yes, no lights |
| Obstructions: | 37 ft. tree, 790 ft. from runway, 308 ft. left of centerline, 15:1 slope to clear | | 65 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 |
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| Runway edge lights: | medium intensity |
| RUNWAY 17 | | RUNWAY 35 |
| Latitude: | 42-06.298312N | | 42-05.589238N |
| Longitude: | 083-10.036057W | | 083-09.812280W |
| Elevation: | 581.3 ft. | | 578.3 ft. |
| Traffic pattern: | left | | right |
| Runway heading: | 174 magnetic, 167 true | | 354 magnetic, 347 true |
| Displaced threshold: | 672 ft. | | no |
| Markings: | basic, in fair condition | | basic, 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: | no | | no |
| Touchdown point: | yes, no lights | | yes, no lights |
| Obstructions: | 80 ft. trees, 1180 ft. from runway, 40 ft. right of centerline, 12:1 slope to clear | | none |
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: | left | | left |
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: | left | | left |
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 25 December 2025 at 0901z to 22 January 2026 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 (191KB) |
| RNAV (GPS) RWY 22 | |
download (198KB) |
| VOR-A | |
download (168KB) |
| NOTE: Special Alternate Minimums apply **CHANGED** | |
download (139KB) |
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)
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Road maps at:
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Google
| Aerial photo |
WARNING: Photo may not be current or correct
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.
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| Sectional chart |
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| Airport distance calculator |
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| Sunrise and sunset |
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Times for 07-Jan-2026
| | Local (UTC-5) | | Zulu (UTC) |
| Morning civil twilight | | 07:31 | | 12:31 |
| Sunrise | | 08:02 | | 13:02 |
| Sunset | | 17:16 | | 22:16 |
| Evening civil twilight | | 17:47 | | 22:47 |
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| Current date and time |
| Zulu (UTC) | 08-Jan-2026 03:30:07 |
| Local (UTC-5) | 07-Jan-2026 22:30:07 |
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| METAR |
| KONZ | 080315Z AUTO 16003KT 8SM OVC017 02/01 A3001 RMK AO2
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KDTW 11nm NW | 080306Z 17003KT 9SM BKN015 OVC250 03/01 A3001 RMK AO2 T00280011
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CXHA 12nm E | 080300Z AUTO 19002KT 03/02 RMK AO1 SLP167 T00250015 51012
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CYQG 14nm NE | 080300Z AUTO 23005KT 9SM OVC016 04/02 A3000 RMK SLP167
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KTTF 15nm SW | 080315Z AUTO 19005KT 7SM OVC013 03/01 A3001 RMK AO2
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KYIP 18nm NW | 080305Z 15004KT 8SM BKN015 02/01 A3000 RMK AO2 T00170006
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KDET 19nm N | 080253Z 22005KT 8SM OVC015 04/02 A3000 RMK AO2 SLP163 T00390017 50004
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| TAF |
KDTW 11nm NW | 072055Z 0721/0824 24009KT 6SM BR OVC010 FM072300 23004KT P6SM BKN012 FM080300 21005KT 6SM BR SCT015 FM080500 18005KT 3SM BR SCT009 SCT250 FM081300 19007KT P6SM BKN250
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CYQG 14nm NE | 071741Z 0718/0818 25009KT P6SM OVC012 TEMPO 0718/0724 5SM BR OVC008 BECMG 0722/0724 24008KT FM080000 24008KT P6SM SCT012 TEMPO 0800/0803 5SM BR SCT008 BKN012 FM080300 20006KT 1SM BR BKN004 PROB30 0803/0806 1/2SM FG VV001 FM080600 19006KT 1/4SM FG VV001 FM081500 19006KT 3/4SM BR OVC002 FM081700 19012KT P6SM FEW002 BKN200 RMK FCST BASED ON AUTO OBS. NXT FCST BY 080000Z
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KYIP 18nm NW | 071936Z 0720/0818 25007KT 6SM BR OVC008 FM072300 23004KT P6SM OVC010 FM080300 21005KT 6SM BR SCT012 FM080500 18005KT 3SM BR SCT009 SCT250 FM081300 19007KT P6SM BKN250
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KDET 19nm N | 071737Z 0718/0818 24007KT 5SM BR OVC010 TEMPO 0718/0720 4SM BR FM072300 23004KT P6SM OVC012 FM080300 21005KT 6SM BR SCT015 FM080500 18005KT 3SM BR SCT009 SCT250 FM081300 19007KT P6SM BKN250
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| NOTAMs |
NOTAMs are issued by the DoD/FAA and will open in a separate window not controlled by AirNav.
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