K7A4
Foster Field
Apple River, IllinoisElevation 990 ftSmall airport
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Runway detail & declared distances
18/36
RWY 18
Displaced threshold187 ft
Traffic patternLeft
RWY 36
Displaced threshold57 ft
Traffic patternLeft
Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.
AIRPORT INFORMATION
Facility & services
Foster Field is in Apple River, Illinois. Field elevation 990 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.
OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerSCOTT HEINEN
Manager phone785-336-3788
AttendedUNATTND
CHARTS & AIRSPACE
ICAO / IATAK7A4
SectionalCHICAGO
Center (ARTCC)CHICAGO
Flight service (AFSS)KANKAKEE
RegionIllinois
CountryUnited States
Coordinates42.4664, -90.1694
Distance from city6 NM SW
SERVICES & LIGHTING
Control towerNon-towered
Field lightingSee remarks
Traffic pattern alt800 ft MSL
CTAF122.800
UNICOM122.800
FREQUENCIES
Communications
122.8
CTAF/UNICOM
UNIC
122.800
CTAF
CTAF
122.800
UNICOM
UNICOM
Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.
AIRPORT REMARKS
Operational remarks
›FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
›ACTVT MIRL RY 18/36 - CTAF - 7 CLICKS.
›20 FT TURF SHOULDERS.
›NSTD MIRL; NON-FRANGIBLE; SPACING & INTST.
›DSPLCD THLDS RYS 18 & 36 NSTD WHITE STRIPE & NRS - NO ARROWS.
›BEACON OTS INDEFLY.
›RWY 18 SLOPE IS 201 TO DISP THRS .
›PERMISSION REQUIRED PRIOR TO LANDING.
›SNW REMOVAL UNAVBL. CALL FOR RWY COND AT 815 541-9751.
›UNLIT 40 FT AGL POWERLINE 1140 FT NORTH OF RWY 18 DTHR.
›PRVDD OBSTN IN RY APCH SLOPE REMOVED/LOWERED OR THR DSPLCD & MKD TO PRVD MIN 20:1 APCH CLNC OVER OBSTN; AREA 125 FT EITHER SIDE OF RY CL CLEAR OF OBSTN; APPROP RY SAFETY AREAS PROVDD.
›20 FT+ BRUSH & TREES 80 FT L&R 0 FT ON FENCE LINE.
›THIS AIRPORT HAS BEEN SURVEYED BY THE NATIONAL GEODETIC SURVEY.
›RY 36 SLOPE IS 42:1 TO DISP THRS.
FREQUENTLY ASKED
Does K7A4 have a METAR?
No on-field METAR is issued for K7A4. This page uses the nearest reporting station as a reference.
Does K7A4 have a TAF?
No TAF is issued directly for K7A4. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at K7A4?
K7A4 sits at 990 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for K7A4?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.