Skip to content

KONZ · Grosse Ile Municipal Airport

ICAO · US · 6 NTSB events

ID KONZ FAA ONZ Elev 591 ft Lat 42° 5.95' N Lon 83° 9.69' W Zulu …

Live conditions

METAR

fetching…

Wind / Visibility

—

Density altitude (now)

—

Decode in METAR tool TAF on AWC ↗ NOTAMs ↗

Aerial view

No FAA diagram published

Imagery © Esri, Maxar, Earthstar Geographics, USDA FSA

Runways

4 runway ends on file. Longest: 4,846 ft. Max gradient: 0.26%

Designator Heading Length Width Surface Lighting Gradient
04 030° 4,846 ft 100 ft Concrete Yes 0.26%
22 210° 4,846 ft 100 ft Concrete Yes 0.26%
17 167° 4,424 ft 75 ft Concrete Yes 0.07%
35 347° 4,424 ft 75 ft Concrete Yes 0.07%

Lengths + headings: in-app airport database. Surface, width, lighting: OurAirports. Gradient: derived from FAA NASR runway-end elevations (NASR's RWY_GRAD field is empty in 99.99% of rows).

Communications · 5 frequencies

  • AWOS AWOS 3 119.675
  • APP DETROIT APP 134.300
  • DEP DETROIT DEP 134.300
  • RDO LANSING RDO 115.700
  • UNIC CTAF/UNICOM 123.000

Live ATC audio (streaming + archived): Open KONZ on LiveATC ↗

Chart Supplement remarks, plain English · cycle 22JAN2026 · 7 matched · 15 not yet translated

Translations anchored to the FAA text; the raw FAA text is authoritative.

TL;DR

  • ·Non-standard pattern direction on Runway 04–22: right traffic. Watch for traffic from the opposite quadrant.
  • ·Non-standard pattern direction on Runway 17–35: right traffic. Watch for traffic from the opposite quadrant.
  • ·Pilot-controlled lighting: click mic 7 times on the CTAF to activate REIL Rwy 04 & 22; PAPI Rwy 04, 22, 17, & 35; MIRL Rwy 04–22 & 17–35. Lights stay on 15 minutes — click again to refresh.

Watch for

  • Non-standard pattern direction on Runway 04–22: right traffic. Watch for traffic from the opposite quadrant.

    right traffic

  • Non-standard pattern direction on Runway 17–35: right traffic. Watch for traffic from the opposite quadrant.

    right traffic

  • Pilot-controlled lighting: click mic 7 times on the CTAF to activate REIL Rwy 04 & 22; PAPI Rwy 04, 22, 17, & 35; MIRL Rwy 04–22 & 17–35. Lights stay on 15 minutes — click again to refresh.

    pcl ctaf

  • Wildlife on or near runways. Vigilant scan during taxi, takeoff, and landing roll. Birds also reported in the area.

    wildlife hazard

  • Runway 06 threshold displaced 515 feet. Usable landing distance is reduced; the displaced portion may still be used for takeoff and rollout.

    displaced threshold

  • Runway 24 threshold displaced 500 feet. Usable landing distance is reduced; the displaced portion may still be used for takeoff and rollout.

    displaced threshold

All translated remarks (7)

  • Non-standard pattern direction on Runway 04–22: right traffic. Watch for traffic from the opposite quadrant.

    Raw FAA text · preamble · operational

    RWY 04–22: H4846X100 (ASPH) S–66, D–83, 2D–105 MIRL 0.3% up…

  • Non-standard pattern direction on Runway 17–35: right traffic. Watch for traffic from the opposite quadrant.

    Raw FAA text · preamble · operational

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

  • Pilot-controlled lighting: click mic 7 times on the CTAF to activate REIL Rwy 04 & 22; PAPI Rwy 04, 22, 17, & 35; MIRL Rwy 04–22 & 17–35. Lights stay on 15 minutes — click again to refresh.

    Raw FAA text · service · operational

    Actvt REIL Rwy 04 & 22; PAPI Rwy 04, 22, 17, & 35; MIRL Rwy 04–22 & 17–35—CTAF

  • Wildlife on or near runways. Vigilant scan during taxi, takeoff, and landing roll. Birds also reported in the area.

    Raw FAA text · airport remarks · operational

    Birds and deer on and invof arpt.

  • Runway 06 threshold displaced 515 feet. Usable landing distance is reduced; the displaced portion may still be used for takeoff and rollout.

    Raw FAA text · radio aids · operational

    RWY 06: Thld dsplcd 515´

  • Runway 24 threshold displaced 500 feet. Usable landing distance is reduced; the displaced portion may still be used for takeoff and rollout.

    Raw FAA text · radio aids · operational

    RWY 24: Thld dsplcd 500´

  • Wildlife on or near runways. Vigilant scan during taxi, takeoff, and landing roll. Birds also reported in the area.

    Raw FAA text · airport remarks · operational

    Deer and lrg birds on and invof rwy.

Not yet translated · raw FAA text (15 sentences)
  • ·PAPI(P4L)—GA 3.04º TCH 40´.
  • ·Attended Mon–Fri 1300–2300Z‡, Sat–Sat prior arngmt.
  • ·Ultralight & pwrd prcht act invof arpt.
  • ·Arpt clsd to acr ops gtr than 30 pax seats exc PPR call amgr.
  • ·Rwy 17–35 extsv peeling & cracking–FOD hazard.
  • ·AIRPORT MANAGER: 734-675-0155
  • ·AWOS–3 119.675 (734) 692–9686.
  • ·CTAF/UNICOM 123.0 CARLETON RCO 122.1R 115.7T (LANSING RADIO) ®DETROIT APP/DEP CON 134.3 CLEARANCE DELIVERY PHONE: For CD ctc Detroit Apch at 734-955-1404.
  • ·CARLETON (VH) (DH) VOR/DME 115.7 CRL Chan 104 N42º02.88´ W83º27.45´ 080º 13.6 NM to fld. 628/3W.
  • ·Rwy 06–24 CLOSED when snow covd.
  • ·Rwy 06 rwy and dthr with 3´ yellow cones.
  • ·Rwy 24 3´ yellow cones dthr mkd with 3´ wide gnd lvl conc stones.
  • ·AIRPORT MANAGER: 734-678-7942
  • ·CTAF 122.9 CLEARANCE DELIVERY PHONE: For CD ctc Detroit Apch at 734-955-1404.
  • ·DETROIT COPTER L–28J, A IAP DETROIT COPTER EC, 22 JAN 2026 to 19 MAR 2026

Field profile

Use

Public-use

Ownership

Public

Scheduled service

No

FAA Chart Supplement

NTSB events

6 NTSB-recorded events on file at this airport .

Total events

13

since 1982

Fatal

2

15.4% of total

Last 5 years

0

no recent events

Last 10 years

1

≈ 0.1/yr

Ranking across all airports · Open in accident map ↗

Operations volume

FAA TAF · history through 2024

2005 2024

Peak: 69,820 ops in 1998

2024 total

16,000

10-yr total

160,000

2024 mix

AC/AT 0% · GA 100% · Mil 0%

Events / million ops

6.3

last 10 years

Fatal / million ops

0.96

approximate · 10-yr scaled

Last 10 years · n=0

No NTSB events at this field in the last decade.

All time · n=6

  • Stall / spin 2
  • Ground collision 1
  • Gear-up landing 1
  • Hard landing 1
  • Other 1

Categories rule-matched from NTSB findings and probable-cause text. "Other" = not enough agency text to classify.

Date Aircraft · Classification · Wx Sev
2015-06-22 GATES LEARJET CORP. 35A · Other · day →
2001-08-12 Cessna 182A · Hard landing · day →
1998-08-25 Piper PA-23-250 · Gear-up · VMC · day →
1997-06-22 Cessna 172M · Stall / spin · VMC · day →
1996-09-02 Piper PA-28-180 · Stall / spin · VMC · day →
1996-08-20 Piper J3C-65 · Ground collision · VMC · day →

Designees in MI

CFI Flight Instructors 1,786 A&P Mechanics 5,757 AME Medical Examiners (AME) 55 DME Mechanic Examiners (DME) 5 DPRE Parachute Rigger Examiners (DPRE) 1 DAR-F Manufacturing Airworthiness (DAR-F) 5 DAR-T Maintenance Airworthiness (DAR-T) 4 DER-Y Engineering — Company (DER-Y) 1 DER-T Engineering — Consultant (DER-T) 9 SAE Specialty Aircraft Examiners (SAE) 29 APD Aircrew Program Designees (APD) 16 TCE Training Center Evaluators (TCE) 1 ODA Organizational Designations 3 Schools Flight Schools 54 FBO Fixed Base Operators 103 Clubs Flying Clubs 41 Repair Repair / Maintenance Shops 9 EAA EAA Chapters 40

DPEs nearby

Distance is city-centroid to airport, a first cut, not the exam location.

Designee City ST Distance
Sara Diane Bey Van Buren Charter Township MI 15 nm
Donald E Wedekemper Ypsilanti MI 22 nm
Amanda Kirsten Roggow Ann Arbor MI 27 nm
William Clark Ann Arbor MI 27 nm
Spencer Norris Sylvania OH 34 nm
Gerald Leigh Stanley Waterford Township MI 34 nm
Stephen Duane Arnold Port Clinton OH 37 nm
Jeffrey Brian Schorsch Perrysburg OH 40 nm
Kerry Michael Brown Adrian MI 41 nm
Craig Fortson Howell MI 46 nm

Showing 10 closest of ~1,400 DPEs nationwide. Source: FAA Designee Locator.

CFIs nearby

City-centroid distance; ratings as on the FAA certificate.

Instructor City ST Distance
William Alexander Hunter Gibraltar MI 2 nm
Matthew Ronald Jamison Gibraltar MI 2 nm
Joseph Stanley Lemanski Grosse Ile MI 2 nm
Christopher Scott Lind Grosse Ile MI 2 nm
Craig Michael Kelly Grosse Ile MI 2 nm
Jeffery Landon Samford Grosse Ile MI 2 nm
Joshua Kaleb Sterling Grosse Ile MI 2 nm
Matthew James Lowlor Grosse Ile MI 2 nm
Jonathan Theodore Mikek Grosse Ile MI 2 nm
Andrew Stephen Alford Grosse Ile MI 2 nm

Showing 10 closest of ~70,900 active CFIs nationwide. Source: FAA Airmen Certification Database.

A&P mechanics nearby

City-centroid distance. A = airframe, P = powerplant, IA = inspection authorization.

Mechanic City ST Distance
Matthew Ronald Jamison Gibraltar MI 2 nm
Royal Percy Lilly Jr Gibraltar MI 2 nm
Peter William Garr Gibraltar MI 2 nm
Arni Elvarsson Einarsson Gibraltar MI 2 nm
Joseph Anthony Goroni Gibraltar MI 2 nm
Viktor Khmelnitsky Gibraltar MI 2 nm
Joseph Stanley Lemanski Grosse Ile MI 2 nm
Lauren Alexandra Quandt Grosse Ile MI 2 nm
Michael Alan Cummings Grosse Ile MI 2 nm
Rickey Lee Lionberger Grosse Ile MI 2 nm

Showing 10 closest of ~248,300 certificated mechanics nationwide. Source: FAA Airmen Certification Database.

Repair stations nearby

By airport location.

Shop Distance
Top Flight Avionics
Belleville, MI
 18 nm
Unique One Aircraft Interiors
Waterford Twp, MI
 36 nm
Unique Avionics, LLC
Waterford, MI
 36 nm
Preferred Avionics
Howell, MI
 49 nm
Great Lakes Aviation Services
Kimball, MI
 56 nm
TAS Aviation, INC.
Lima, OH
 92 nm
Shamrock Air Service, LLC
Delaware, OH
 109 nm
Mac-Michael Avionics, Inc.
Delaware, OH
 109 nm
Premier Avionics, LLC
Fort Wayne, IN
 113 nm
Mayday Avionics, Inc.
Grand Rapids, MI
 115 nm

Showing 10 closest of ~400 geocoded shops in the repair-station directory. Source: AOPA business listings.