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Grosse Ile Municipal Airport
KONZ ONZ (Detroit/Grosse Ile, MI)
Class G: untowered

Elevation: 590


RwySizeTypeCond.
04/224846x100AsphaltGood
17/354424x75ConcretePoor


Chart Supplement (pdf version)

(ONZ)(KONZ) 2 S UTC–5(–4DT) N42º05.94´ W83º09.69´
591 B NOTAM FILE ONZ
RWY 04–22: H4846X100 (Asphalt) S–66, D–83, 2D–105 MIRL 0.3% up NE
RWY 04: Runway End Identifier Lights. PAPI(P4L)—GA 3.04º TCH 40´. Tree. Right Traffic.
RWY 22: Runway End Identifier Lights. PAPI(P4L)—GA 3.04º TCH 40´. Threshold displaced 428´. Trees.

RWY 17–35: H4424X75 (Concrete) S–40, D–55, 2D–90 MIRL

RWY 17: PAPI(P4L)—GA 3.0º TCH 26´. Threshold displaced 672´. Trees.
RWY 35: PAPI(P4L)—GA 3.0º TCH 20´. Right Traffic.
SERVICE: S4 FUEL 100LL, JET A LIGHTING ACTIVATE Runway End Identifier Lights Runway 04 & 22; PAPI Runway 04, 22, 17, & 35; MIRL Runway 04–22 & 17–35—CTAF.
AIRPORT REMARKS: Attended Monday–Friday 1300–2300Z‡, Saturday–Saturday prior arrangment. Birds and deer on and in the vicinity of airport. Ultralight & powered parachute activity in the vicinity of airport. Airport closed to air carrier operations greater than 30 passenger seats except Prior Permission Required call airport manager. Runway 17–35 extensive peeling & cracking–FOD hazard.

AIRPORT MANAGER: 734-675-0155
WEATHER DATA SOURCES: AWOS–3P 119.675 (734) 692–9686.
COMMUNICATIONS: CTAF/UNICOM 123.0
CARLETON RCO 122.1R 115.7T (LANSING RADIO)
® DETROIT APPROACH/DEPARTURE CONTROL 134.3 CLEARANCE DELIVERY PHONE: For clearance delivery contact Detroit Approach at 734-955-1404.
RADIO AIDS TO NAVIGATION: NOTAM FILE LAN.
CARLETON (VH) (DH) VOR/DME 115.7 VOR unusable: CRL Chan. 104 N42º02.88´ W83º27.45´ 080º 13.6 NM to field. 628/3W. 000º–019º below 5,000´
020º–025º beyond 40 NM
020º–030º beyond 13 NM below 5,000´ 031º–040º below 5,000´
041º–050º beyond 25 NM below 8,000´
041º–055º beyond 65 NM
056º–083º beyond 40 NM
084º–104º beyond 40 NM below 18,000´
105º–246º beyond 40 NM
247º–283º beyond 60 NM below 12,500´
255º–335º beyond 30 NM below 8,000´
284º–294º beyond 40 NM
295º–305º beyond 40 NM below 18,000´
306º–359º beyond 40 NM

COMM/NAV/WEATHER REMARKS: For clearance delivery contact Detroit Approach at 734–955–1404. • • • HELIPAD H1: H25X25 (Concrete) HELIPAD H2: H25X25 (Concrete)
• • • • • • • • • • • • • • •



ApproachTypeCat B MinsPlate
RNAV (GPS) RWY 22LNAV
CIRCLING		980-1
1220-1		chart
RNAV (GPS) RWY 04LNAV
CIRCLING		960-1
1220-1		chart
VOR-ACIRCLING1220-1¼chart


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Database updated: 2026/03/19

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