KONZ

IFR

GROSSE ILE MUNI

DETROIT/GROSSE ILE · MICHIGAN

Elev
590.5'
Longest RWY
4,846'04/22
Tower
None
Status
Uncontrolled
Now--Z· METAR12:55Z
© Esri
Runways rendered from FAA survey · not for navExpand →
Before you fly into KONZ
Conditions
IFR
IFR only · VFR stays grounded
Airport
Non-towered
Self-announce on CTAF
Pattern alt
1,590.5'
MSL · field 590.5' + 1,000 AGL
Favored RWY
RWY 22
H/W +11 · X/W 4 kt L

METAR & TAF KONZ

Current METAR

Observed 12:55Z

KONZ 281255Z AUTO 19012KT 9SM -DZ BR OVC005 15/15 A2978 RMK AO2
Wind
190° @ 12 kt
Visibility
9 SM
Temp / Dew
15°C / 15°C
Altimeter
29.78 inHg
Clouds
OVC
Density alt
906 ft
Ceiling
500 ft AGL
Rules
IFR

Airport info & contacts

Manager on record, flight service, ARTCC, attendance schedule and pattern altitude — published by the FAA and refreshed every 28 days.

Location

From city
2 NM S
VFR sectional
DETROIT
ARTCC
ZOB · CLEVELAND
NOTAM facility
ONZ (NOTAM-D)

Airport manager

Name
JANEL MACNEE
Address
P.O. BOX 129, PO BOX 129, GROSSE ILE MI 48138

Flight service · Hours

FSS LAN
LANSING1-800-WX-BRIEF
Attendance
  • MON-FRI · 0800-1800
  • SAT-SUN · PRIOR ARNGMT

Frequencies

Tap any row to copy the frequency to your clipboard.

Advisory / CTAF
Approach / Departure

Runways & pattern

Full page

Runway & wind

tap a runway
190° · 12 kt
RWY 22
203°M
Head/Tail
+11 kt
Crosswind
4 kt L

Pattern entry · RWY 22

LEFT TRAFFIC
CrosswindCrosswindDownwindDownwindBaseBaseFinalFinal45° entry45° entryRWY 22 · 203° · LEFT TRAFFICPattern 1,591 ft MSL
RunwayHeading (°M)LengthSurfaceTraffic
04/22Favored23° / 203°4,846 ftASPH04 R
17/35160° / 340°4,424 ftCONC35 R

Runway end performance

EndTORATODAASDALDAVGSIApproach lightsObstruction
04PAPI 4-box left(3.04°)37', tree, 790' from thr, 308' R of cntrln, slope 15
22PAPI 4-box left(3.04°)65', trees, 1010' from thr, 344' R of cntrln, slope 12
17PAPI 4-box left(3°)80', trees, 1180' from thr, 40' R of cntrln, slope 12
35PAPI 4-box left(3°)

Declared distances in feet. TORA = takeoff run available, TODA = takeoff distance, ASDA = accelerate-stop, LDA = landing distance.

Airport sketch

Runways drawn to scale from FAA survey coordinates, rendered over live satellite imagery. Not for navigation.

© Esri

Approaches & charts

RNAV (GPS) RWY 04
KONZ · IAP
Can’t preview this PDF inline. Open it →

Services on the field

Fuel grades, oxygen, maintenance, ramp storage and lighting — as declared to the FAA by the airport operator.

Fuel & services

Fuel
100LLA
Oxygen (bottled)
Not available
Oxygen (bulk)
Not available
Airframe repair
Major
Power plant repair
Major
Other services
CHTR,INSTR,RNTL

Ramp & ground

Transient storage
  • Tie-down
  • Hangar
Landing fee
No fee published
Customs
Not available
Lighting schedule
SEE RMK
Beacon schedule
SS-SR
Beacon
White / Green (civil land)(WG)
Wind indicator
Lighted
Segmented circle
Yes

Fuel & FBOs

Cheapest 100LL and Jet A on the field and nearby. Always confirm with the FBO before taxi.

Airport notes

Surface conditions, obstructions, local procedures, lighting outages and other notes published with each FAA cycle.

General notes

  • Birds and deer are present on and in the vicinity of the airport.Show FAA
  • For clearance delivery, contact Detroit Approach at 734-955-1404.Show FAA
  • Ultralight and powered parachute activity occurs in the vicinity of the airport.Show FAA

Lighting notes

  • Runway end identifier lights are active on runways 04 and 22. Precision approach path indicators are available on runways 04, 22, 17, and 35. Medium intensity runway lights are available on runways 04/22 and 17/35 and are controlled by the common traffic advisory frequency.Show FAA

Approach & departure obstructions

  • 22The approach slope to the displaced threshold on runway 22 is 20 to 1.Show FAA

Other notes

  • The airport is closed to aircraft operations greater than 30 passenger seats except with prior permission requested by calling the airport manager.Show FAA
  • 17/35Runway 17/35 has extensive peeling and cracking which is a foreign object debris hazard.Show FAA

VFR map & nearby airports

VFR sectional. Tap any ICAO chip to open that airport.

Key facts · KONZ

Answer card
ICAO
KONZ
Name
GROSSE ILE MUNI
Location
DETROIT/GROSSE ILE, MICHIGAN
Elevation
590.5 ft MSL
Traffic pattern altitude
1,590.5 ft MSL (1,000 AGL)
Control tower
Non-towered (use CTAF)
Total runways
2
Longest runway
04/22 · 4,846 ft
Published ILS approaches
0
Published frequencies
4
Magnetic variation
Current flight rules
IFR
Current wind
190° at 12 kt
Favored runway now
RWY 22

Grosse Ile Muni sits in Detroit/Grosse Ile, Michigan. Field elevation is 590.5 ft MSL. The airport has two runways. The longest is 4,846 ft on 04/22. There is no control tower. No ILS approaches are published. Pattern altitude is not published. Use standard 1,000 ft AGL for light piston traffic unless ATC or the current Chart Supplement says otherwise.

The on-field FBO is Grosse Ile Municipal Airport. It carries 100LL and Jet A. Call the field directly at (734) 675-0155 for current service details. Detroit Approach handles clearance delivery. The published remarks also flag birds and deer on and near the airport. Ultralight and powered parachute activity also occurs nearby. That matters here.

Runway 17/35 is 4,424 ft concrete. The Chart Supplement notes extensive peeling and cracking on that surface. Treat it as a possible FOD issue. Runway 22 has a displaced threshold with a steep approach slope to that threshold. Runway end identifier lights are active on 04 and 22. PAPI is available on both runways. Medium intensity runway lights are pilot-controlled on CTAF. This is a field where a careful preflight and a clean scan on rollout pay off.

Frequently asked questions

What is the longest runway at KONZ?
Runway 04/22 is the longest runway at 4,846 ft. It is asphalt. The published magnetic headings are 30° and 210°.
Does Grosse Ile Muni have any ILS approaches?
No ILS approaches are published for KONZ. Check the current Chart Supplement for the latest approach list before you go.
What is the pattern altitude at KONZ?
Pattern altitude is not published. Use standard 1,000 ft AGL for light piston traffic unless the current Chart Supplement or ATC gives you something different.
Is KONZ towered?
No. KONZ has no control tower. CTAF and UNICOM are both 123.0.
Which FBO is on the field at KONZ?
Grosse Ile Municipal Airport is the on-field FBO. It carries 100LL and Jet A. Call (734) 675-0155 for current services.
What runway lighting is available at KONZ?
Runway end identifier lights are active on 04 and 22. PAPI is available on 04, 22, 17 and 35. Medium intensity runway lights are available on both runways. They are pilot-controlled on CTAF.
Are there any runway surface issues at KONZ?
Yes. Runway 17/35 has extensive peeling and cracking. That is a reported FOD hazard. Plan your landing and rollout with that in mind.
Are there special operating limits at KONZ?
The airport is closed to aircraft operations greater than 30 passenger seats unless you get prior permission from the airport manager. Birds, deer, ultralight activity and powered parachute activity are also published concerns.

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