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KSQI · Whiteside County Airport - Joseph H Bittorf Field

ICAO · US · 7 NTSB events

ID KSQI FAA SQI Elev 648 ft Lat 41° 44.53' N Lon 89° 40.42' 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: 6,499 ft. Max gradient: 0.05%

Designator Heading Length Width Surface Lighting Gradient
07 70.1° 6,499 ft 150 ft ASP Yes 0.01%
25 250.1° 6,499 ft 150 ft ASP Yes 0.01%
18 180.1° 3,900 ft 100 ft ASP Yes 0.05%
36 0.1° 3,900 ft 100 ft ASP Yes 0.05%

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 · 4 frequencies

  • AWOS AWOS 3 119.175
  • CLD ROCKFORD CLNC DEL 128.000
  • A/D ROCKFORD APP/DEP 126.000
  • UNIC CTAF/UNICOM 123.000

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

Chart Supplement remarks, plain English · cycle 22JAN2026 · 5 matched · 28 not yet translated

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

TL;DR

  • ·Pilot-controlled lighting: click mic 7 times on the CTAF to activate HIRL Rwy 07–25; MALSR Rwy 25; REIL Rwys 07, 18 and 36. Lights stay on 15 minutes — click again to refresh.
  • ·Non-standard pattern direction on Runway 18–36: right traffic. Watch for traffic from the opposite quadrant.
  • ·Non-standard pattern direction on Runway 27L: right traffic. Watch for traffic from the opposite quadrant.

Watch for

  • Pilot-controlled lighting: click mic 7 times on the CTAF to activate HIRL Rwy 07–25; MALSR Rwy 25; REIL Rwys 07, 18 and 36. Lights stay on 15 minutes — click again to refresh.

    pcl ctaf

  • Non-standard pattern direction on Runway 18–36: right traffic. Watch for traffic from the opposite quadrant.

    right traffic

  • Non-standard pattern direction on Runway 27L: right traffic. Watch for traffic from the opposite quadrant.

    right traffic

  • Runway 09L threshold displaced 286 feet. Usable landing distance is reduced; the displaced portion may still be used for takeoff and rollout.

    displaced threshold

All translated remarks (5)

  • Pilot-controlled lighting: click mic 7 times on the CTAF to activate HIRL Rwy 07–25; MALSR Rwy 25; REIL Rwys 07, 18 and 36. Lights stay on 15 minutes — click again to refresh.

    Raw FAA text · service · operational

    actvt HIRL Rwy 07–25; MALSR Rwy 25; REIL Rwys 07, 18 and 36—CTAF

  • Airport attended 1400–2300Z‡. Self-service or limited operations outside attended hours.

    Raw FAA text · airport remarks · advisory

    Attended 1400–2300Z‡.

  • Non-standard pattern direction on Runway 18–36: right traffic. Watch for traffic from the opposite quadrant.

    Raw FAA text · radio aids · operational

    RWY 18–36: H4001X75 (ASPH–PFC) MIRL RWY 18: REIL. PVASI(PSIL…

  • Non-standard pattern direction on Runway 27L: right traffic. Watch for traffic from the opposite quadrant.

    Raw FAA text · radio aids · operational

    RWY 27L: REIL. PVASI(PSIL)—GA 4.0º TCH 34´. RWY 09L–27R: 193…

  • Runway 09L threshold displaced 286 feet. Usable landing distance is reduced; the displaced portion may still be used for takeoff and rollout.

    Raw FAA text · radio aids · operational

    RWY 09L–27R: 1933X165 (TURF) RWY 27R: Thld dsplcd 286´

Not yet translated · raw FAA text (28 sentences)
  • ·90 ILLINOIS STERLING/ROCKFALLS WHITESIDE CO/JOS H BITTORF FLD (SQI)(KSQI) 2 S UTC–6(–5DT) N41º44.57´ W89º40.58´ 648 B NOTAM FILE SQI RWY 07–25: H6499X150 (ASPH–PFC) S–50, D–60, 2D–90 HIRL RWY 07: REIL.
  • ·PAPI(P4L)—GA 3.0º TCH 49´.
  • ·RWY 18–36: H3900X100 (ASPH–GRVD) S–18 MIRL RWY 18: REIL.
  • ·Unattended New Years; Christmas; and Thanksgiving. 100LL and Jet A fuel dispenser is self serve with credit card.
  • ·Terminal bldg can be accessed after hrs by cipher lock which has applicable instructions.
  • ·Rwy 07 preferred calm wind rwy.
  • ·AIRPORT MANAGER: (815) 213-7939
  • ·AWOS–3PT 119.175 (815) 626–2704.
  • ·CTAF/UNICOM 123.0 ®ROCKFORD APP/DEP CON 126.0 CLNC DEL 128.0 CLEARANCE DELIVERY PHONE: For CD ctc Chicago ARTCC at 630-906-8921.
  • ·POLO (L) DME 113.75 PLL Chan 84(Y) N41º57.94´ W89º31.45´ 207º 15.0 NM to fld. 843.
  • ·ILS/DME 111.5 I–SQI Chan 52 Rwy 25.
  • ·Localizer backcourse unusable byd 15 NM.
  • ·DME backcourse unusable byd 10 NM.
  • ·S4 FUEL 100LL, JET A LGT ACTIVATE REIL Rwy 09R, Rwy 18, Rwy 27L; PVASI Rwy 09R, Rwy 18, Rwy 27L, Rwy 36; MIRL Rwy 09R–27L—CTAF.
  • ·MIRL Rwy 18–36 preset low ints; to incr ints—CTAF.
  • ·Rwy 09R PVASI unusbl byd 8º rgt of cntrln.
  • ·Rwy 18 PVASI unusbl byd 6º left/rgt of cntrln, opr only when rwy lgts are activated by CTAF.
  • ·Rwy 27L PVASI unusbl 6º rgt and 8º left of cntrln.
  • ·Rwy 36 PVASI unusbl byd 5º left/rgt of cntrln.
  • ·Attended Mon–Fri 1500–2300Z‡.
  • ·Self svc fuel lctd on N ramp avbl 24 hrs with credit card.
  • ·TPA—Rwy 09L–27R 1222 (600), Rwy 09R–27L and Rwy 18–36 1422 (800).
  • ·Rwy 09L marked with white rocks. 172´ lgtd water twr located 3007´ from Rwy 27L end and 488´ L.
  • ·AIRPORT MANAGER: 217-824-9313
  • ·AWOS–3PT 123.875 (217) 824–9323.
  • ·CTAF/UNICOM 122.8 ®SAINT LOUIS APP/DEP CON 126.15 CLEARANCE DELIVERY PHONE: For CD ctc St Louis Apch 314-890-1017.
  • ·SPINNER (VH) (H) VORTACW 112.7 SPI Chan 74 N39º50.38´ W89º40.66´ 140º 24.4 NM to fld. 586/1W.
  • ·TACAN AZIMUTH unusable: 025º–045º byd 15 NM blo 3,000´ 190º–244º byd 15 NM blo 4,000´ 245º–300º byd 10 NM VOR unusable: 269º–271º byd 40 NM 328º–331º byd 40 NM TINLEY PARK HELISTOP HELIPORT (See CHICAGO/TINLEY PARK on page 52) CHICAGO H–5D, L–28G IAP ST LOUIS L–27C IAP EC, 22 JAN 2026 to 19 MAR 2026

Field profile

Use

Public-use

Ownership

Public

Scheduled service

No

Tags

Sauk Valley Aviation

Source: OurAirports community

IATA · SQI Airport website ↗

FAA Chart Supplement

NTSB events

7 NTSB-recorded events on file at this airport .

Total events

9

since 1982

Fatal

1

11.1% of total

Last 5 years

1

≈ 0.2/yr

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: 34,626 ops in 1994

2024 total

32,720

10-yr total

327,200

2024 mix

AC/AT 2% · GA 98% · Mil 0%

Events / million ops

3.1

last 10 years

Fatal / million ops

0.34

approximate · 10-yr scaled

Last 10 years · n=0

No NTSB events at this field in the last decade.

All time · n=7

  • Fuel exhaustion / starvation 1
  • Stall / spin 1
  • Other 1
  • Hard landing 1
  • Weather · wind / icing / convective 1
  • Engine failure / power loss 1
  • Loss of control 1

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

Date Aircraft · Classification · Wx Sev
2012-05-08 Cessna A188 · Loss of control · VMC · day →
2006-07-27 Beech 95-B55 · Engine failure · IMC · day →
1995-04-19 Piper PA-22-160 · Fuel exhaustion · VMC · day →
1990-03-16 Cessna C172N · Weather · day →
1989-10-12 Beech C23 · Hard landing · VMC · day →
1984-12-01 Stinson 108-2 · Other · day →
1984-01-18 Cessna 150L · Stall / spin · VMC · dawn →

Designees in IL

CFI Flight Instructors 2,147 A&P Mechanics 6,104 AME Medical Examiners (AME) 49 DME Mechanic Examiners (DME) 13 DPRE Parachute Rigger Examiners (DPRE) 1 DAR-F Manufacturing Airworthiness (DAR-F) 9 DAR-T Maintenance Airworthiness (DAR-T) 4 DER-Y Engineering — Company (DER-Y) 3 DER-T Engineering — Consultant (DER-T) 11 SAE Specialty Aircraft Examiners (SAE) 43 ODA Organizational Designations 4 Schools Flight Schools 64 FBO Fixed Base Operators 67 Clubs Flying Clubs 56 Repair Repair / Maintenance Shops 8 EAA EAA Chapters 40

DPEs nearby

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

Designee City ST Distance
Joseph Lawrence Kinzer Peru IL 33 nm
Thomas James Norton Peru IL 33 nm
Steven Paul Kirik Bettendorf IA 38 nm
Steven Paul Kirik Rockford IL 41 nm
Chris Alan Frazier Davenport IA 43 nm
Fred A Sweet Poplar Grove IL 52 nm
Matthew Edward Massey Yorkville IL 56 nm
Jeffrey Allen Galesburg IL 57 nm
Jerry Kelvin Lay Minonk IL 58 nm
Gregory Mark Wilson Oswego IL 60 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
Dean Charles Laws Rock Falls IL 2 nm
Darrell Lee Mattson Sterling IL 4 nm
Darin Wilson Heffelfinger Sterling IL 4 nm
Keith Edward Cowell Dixon IL 11 nm
Andrew Joseph Wilson Dixon IL 11 nm
Julia Lee Ritz Walnut IL 12 nm
Norman Dale Headings Walnut IL 12 nm
Nicholas James Nauman Amboy IL 15 nm
Jerry Allen Hose Polo IL 15 nm
Robert Gerald Hough Iii Mount Morris IL 21 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
Leslie Lee Cady Rock Falls IL 2 nm
Perry Thomas Ports Rock Falls IL 2 nm
Darin Wilson Heffelfinger Sterling IL 4 nm
Kenneth Lyle Habben Sterling IL 4 nm
Charles Anthony Nash Sterling IL 4 nm
Korey Kent Foreman Sterling IL 4 nm
Zachary Keith Knutsen Sterling IL 4 nm
Robert Claybourne Sigel Tampico IL 8 nm
John Felix Cisneros Dixon IL 11 nm
Keith Edward Cowell Dixon IL 11 nm

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

Repair stations nearby

By airport location.

Shop Distance
Avionics Place, Inc
Rockford, IL
 38 nm
GreenWing Aviation & Welding Co.
Lacon, IL
 45 nm
The Polished Hare
West Chicago, IL
 64 nm
Mobile Avionics Technologies, Inc.
Lake In The Hills, IL
 67 nm
Aero-Fix LLC
Pekin, IL
 75 nm
Aircraft Propeller Service, LLC
Lake Zurich, IL
 77 nm
West Star Aviation, Inc
Wheeling, IL
 82 nm
Sunshine Aircraft Repair, Inc.
Kenosha, WI
 93 nm
Skycom Avionics, Inc.
Waukesha, WI
 101 nm
Northwest Aviation Maintenance, Inc.
Griffith, IN
 103 nm

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