ONZ
Grosse Ile Municipal Airport
Official FAA Data Effective 2026-06-11 0901Z
Chart Supplement
AF/D
AF/D
VFR Chart of KONZ
Sectional Charts at SkyVector.com
IFR Chart of KONZ
Enroute Charts at SkyVector.com
Location Information for KONZ
Coordinates: N42°5.94' / W83°9.69'
Located 02 miles S of Detroit/Grosse Ile, Michigan on 607 acres of land. View all Airports in Michigan.
Surveyed Elevation is 590 feet MSL.
Operations Data
Airport Use:Open to the public
Activation Date:May 1941
Status:Operational
Control Tower:No
Seg-Circle:Yes
Beacon:White-Green
(Lighted Land Airport)
Wind Indicator:Yes, Lighted
Lighting Schedule:SEE RMK
A.R.T.C.C.:CLEVELAND
F.S.S.:LANSING
NOTAMs Facility:ONZ (NOTAM-D available)
Sectional Chart:DETROIT
AirspaceAnalysis:NO OBJECTION
Attendance:ALL/MON-FRI/0800-1800
ALL/SAT-SUN/PRIOR ARNGMT
Airport Communications
AWOS-3P:119.675 Tel. 734-692-9686
DETROIT APPROACH:134.3 284.0
DETROIT DEPARTURE:134.3 284.0
CTAF:123.000
UNICOM:123.000
D-ATIS at DTW (10.9 NW):118.125 ;DEP
ASOS at DTW (10.9 NW): 231-202-2054
AWOS-3P at TTF (15.5 SW):119.075 734-384-0259
Nearby Navigation Aids
IDNameFreqRadial / Range
VOD DXO DETROIT 113.40 132°11.4
VOD CRL CARLETON 115.70 079°13.6
VOT SVM SALEM 114.30 136°26.8
VOR MTC SELFRIDGE 133.70 211°34.1
IDNameFreqBearing / Range
VOR ADG ADRIAN 278 251°43.2
VOR TO TOPHR 219 226°47.2
VOR PH PHURN 332 029°51.2
VOR GW SHENK 227 239°93.1
Runway 04/22
Dimensions:4846 x 100 feet / 1477 x 30 meters
Surface:Asphalt in Good Condition
Weight Limits:S-66, D-83, ST-105
Edge Lighting:Medium Intensity
Runway 04Runway 22
Coordinates:N42°5.60' / W83°9.74'N42°6.29' / W83°9.20'
Elevation: 576.8 589.3
Traffic Pattern: Right Left
Runway Heading: 30° True 210° True
Displaced Threshold: 428 Feet
Markings:Non-Precision Instrument in good condition.Non-Precision Instrument in good condition.
Glide Slope IndicatorP4L (3.04° Glide Path Angle)P4L (3.04° Glide Path Angle)
REIL:YesYes
Obstacles: 37 ft Tree 790 ft from runway, 308 ft left of center 65 ft Trees 1010 ft from runway, 344 ft left of center
APCH RATIO 20:1 TO DTHR.
Runway 17/35
Dimensions:4424 x 75 feet / 1348 x 23 meters
Surface:Concrete in Poor Condition
EXTSV PEELING & CRACKING - FOD HAZ.
Weight Limits:S-40, D-55, ST-90
Edge Lighting:Medium Intensity
Runway 17Runway 35
Coordinates:N42°6.30' / W83°10.04'N42°5.59' / W83°9.81'
Elevation: 581.3 578.3
Traffic Pattern: Left Right
Runway Heading: 167° True 347° True
Displaced Threshold: 672 Feet
Markings:Basic in fair condition.Basic in fair condition.
Glide Slope IndicatorP4L (3.00° Glide Path Angle)P4L (3.00° Glide Path Angle)
Obstacles: 80 ft Trees 1180 ft from runway, 40 ft right of center
Helipad H1
Dimensions:25 x 25 feet / 8 x 8 meters
Surface:Concrete
Coordinates:N42°6.32' / W83°9.47'N0°0.00' / E0°0.00'
Elevation: 595.0
Helipad H2
Dimensions:25 x 25 feet / 8 x 8 meters
Surface:Concrete
Coordinates:N42°6.32' / W83°9.45'N0°0.00' / E0°0.00'
Elevation: 594.0
Services Available
Fuel:100LL (blue), Jet-A
Transient Storage:Hangars,Tiedowns
Airframe Repair:MAJOR
Engine Repair:MAJOR
Bottled Oxygen:NONE
Bulk Oxygen:NONE
Other Services:CHARTER SERVICE,PILOT INSTRUCTION,AIRCRAFT RENTAL
Ownership Information
Ownership:Publicly owned
Owner:TOWNSHIP OF GROSSE ILE
PO BOX 129, PO BOX 129
GROSSE ILE, MI 48138
734-675-0155
Manager:JANEL MACNEE
P.O. BOX 129, PO BOX 129
GROSSE ILE, MI 48138
734-675-0155
Other Remarks
  • BIRDS & DEER ON & INVOF ARPT.
  • ULTRALIGHT & PWRD PRCHT ACT INVOF ARPT.
  • FOR CD CTC DETROIT APCH AT 734-955-1404.
  • ARPT CLSD TO ACR OPS GTR THAN 30 PAX SEATS EXC PPR CALL AMGR.
  • ACTVT REIL RWY 04 & 22; PAPI RWY 04, 22, 17, & 35; MIRL RWY 04/22 & 17/35 - CTAF.
Instrument Approach Procedure (IAP) Charts