# NTSB investigations, IL: Unknown

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB CEN26FA141](https://openairdocs.org/ntsb/CEN26FA141.md): Piper PA-28-140 · Rock Falls, IL · Accident · 1 fatal · Class 3 · Field · Preliminary report · Mar 20, 2026 · N9913W · Destroyed
  > On March 20, 2026, about 1503 central daylight time, a Piper PA-28-140 airplane, N9913W, was destroyed when it was involved in an accident near Rock Falls, Illinois. The student pilot sustained fatal injuries. The airplane was being operated as a Title 14…
- [NTSB CEN26FA132](https://openairdocs.org/ntsb/CEN26FA132.md): Cessna T210M · Deerfield, IL · Accident · 1 fatal · Class 3 · Field · Preliminary report · Mar 5, 2026 · N19FB · Substantial damage
  > On March 4, 2026, about 2145 central standard time, a Cessna T210M airplane, N19FB sustained substantial damage when it was involved in an accident near Deerfield, Illinois. The pilot was fatally injured. The airplane was operated under Title 14 Code of…
- [NTSB CEN26FA064](https://openairdocs.org/ntsb/CEN26FA064.md): Piper PA-30 · West Chicago, IL · Accident · 2 fatal · Class 3 · Field · Preliminary report · Dec 17, 2025 · N8693Y · Substantial damage
  > On December 17, 2025, about 1349 central standard time, a Piper PA-30 airplane, N8693Y, was substantially damaged when it was involved in an accident near West Chicago, Illinois. The pilot and pilot-rated passenger were fatally injured. The airplane was…
- [NTSB CEN24FA312](https://openairdocs.org/ntsb/CEN24FA312.md): Engineering & Research Ercoupe 415-C · Elkhart, IL · Accident · 1 fatal · Class 3 · Field · Final report · Aug 7, 2024 · N3093H · Destroyed
  > An off-airport landing in a soybean field for reasons that could not be determined. Contributing to the severity of the pilot’s injuries and airplane damage was a fire that occurred at an unknown time.
- [NTSB CEN21FA024](https://openairdocs.org/ntsb/CEN21FA024.md): Glasair III · Ford Heights, IL · Accident · 1 fatal · Class 3 · Field · Final report · Oct 20, 2020 · N713MJ · Substantial damage
  > The loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB CEN17CA140](https://openairdocs.org/ntsb/CEN17CA140.md): Cessna 172R · Cahokia, IL · Accident · No injuries · Data collection · Final report · Feb 23, 2017 · N51827 · Substantial damage
  > A hard landing for reasons that could not be determined based on the available evidence.
- [NTSB GAA15CA161](https://openairdocs.org/ntsb/GAA15CA161.md): Cessna 172S · Galesburg, IL · Accident · No injuries · Data collection · Final report · Jun 10, 2015 · N740SP · Substantial damage
  > Firewall damage reported by maintenance personnel that occurred during an unknown phase of flight, because the accident flight and pilot could not be determined.
- [NTSB CHI08LA041](https://openairdocs.org/ntsb/CHI08LA041.md): Herink H R/Herink R W Challenger · Apple River, IL · Accident · 1 fatal · Limited investigation · Final report · Nov 27, 2007 · N2159M · Substantial damage
  > The pilot's failure to maintain adequate airspeed which resulted in an inadvertent stall. Contributing to the accident was the low altitude and the gusty wind conditions.
- [NTSB CHI08CA011](https://openairdocs.org/ntsb/CHI08CA011.md): Cessna 172P · Belleville, IL · Accident · No injuries · Data collection · Final report · Sep 29, 2007 · N65998 · Substantial damage
  > the design limits of the aircraft being exceeded by a previous pilot during an unknown phase of flight.
- [NTSB CHI06LA178](https://openairdocs.org/ntsb/CHI06LA178.md): Moon Rans S-14 · Berlin, IL · Accident · 1 fatal · Limited investigation · Final report · Jul 7, 2006 · N43293 · Destroyed
  > The pilot's failure to maintain control of the airplane for undetermined reasons.
- [NTSB CHI05LA125](https://openairdocs.org/ntsb/CHI05LA125.md): Hurley Searey · South Beloit, IL · Accident · 1 fatal · Limited investigation · Final report · May 24, 2005 · N60667 · Destroyed
  > In-flight collision with the ground for undetermined reasons.
- [NTSB CHI03LA236](https://openairdocs.org/ntsb/CHI03LA236.md): Polsgrove Bluegrass Express · Grafton, IL · Accident · 1 fatal · Limited investigation · Final report · Jan 9, 2003 · N113YE · Destroyed
  > Undetermined.
- [NTSB CHI00LA038](https://openairdocs.org/ntsb/CHI00LA038.md): Cessna 310Q · Moline, IL · Accident · No injuries · Limited investigation · Final report · Nov 26, 1999 · N7762Q · Substantial damage
  > the landing gear locking mechanism was not properly locked. Factors relating to this accident were the improper rigging of the gear and the runway marker.
- [NTSB CHI96LA352](https://openairdocs.org/ntsb/CHI96LA352.md): Cessna 172RG · Aurora, IL · Accident · No injuries · Limited investigation · Final report · Sep 17, 1996 · N966LA · Substantial damage
  > undetermined.
- [NTSB CHI96FA301](https://openairdocs.org/ntsb/CHI96FA301.md): Bellanca 7GCAA · Hinckley, IL · Accident · 2 fatal · Field investigation · Final report · Aug 19, 1996 · N5026Q · Destroyed
  > the instructor pilot exceeded the design stress limits of the aircraft which resulted in the overload failure of the wing. A factor was that the weight and balance of the aircraft was exceeded by the instructor pilot.
- [NTSB CHI95FA212](https://openairdocs.org/ntsb/CHI95FA212.md): Taylorcraft BC-65 · Plato Center, IL · Accident · 1 fatal · Field investigation · Final report · Jul 8, 1995 · N1027K · Substantial damage
  > the pilot not maintaining an adequate fuel supply, and not maintaining airspeed.
- [NTSB CHI95LA343](https://openairdocs.org/ntsb/CHI95LA343.md): Beech C23 · Waukegan, IL · Accident · 1 fatal · Limited investigation · Final report · Mar 31, 1995 · N23990 · Destroyed
  > The pilot's VFR flight into instrument meteorolical conditions.
- [NTSB DCA90IA048](https://openairdocs.org/ntsb/DCA90IA048.md): Airbus Industrie A320-211 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Aug 10, 1990 · N306US · Minor damage
  > The pilot(s) allowed the aircraft to rotate to an excessive nose high attitude, either during a takeoff or landing.
- [NTSB CHI89FA030](https://openairdocs.org/ntsb/CHI89FA030.md): Mooney M20J · Vermillion, IL · Accident · 2 fatal · Field investigation · Final report · Dec 3, 1988 · N201UL · Destroyed
- [NTSB CHI88FA190](https://openairdocs.org/ntsb/CHI88FA190.md): Mcdonnell Douglas 269B · Braceville, IL · Accident · 2 fatal · Field investigation · Final report · Aug 2, 1988 · N9522F · Destroyed
  > Conducting maneuvering flight the PIC failed to monitor the helicopter systems and allowed the main rotor RPM to decay to the point where it would not produce enough lift to sustain flight.
- [NTSB CHI87FA124](https://openairdocs.org/ntsb/CHI87FA124.md): Cessna 152 · Ina, IL · Accident · 1 fatal · Field investigation · Final report · May 6, 1987 · N25991 · Destroyed
  > Before the flt, the plt stated his intentions were to practice ngt lndgs. He took off at 2010 CDT with an estd 1.5 hrs of fuel on board. When the acft did not return, a search was initiated. Subsequently, it was fnd by fishermen, submergedin a lake…
- [NTSB CHI85FAMS2](https://openairdocs.org/ntsb/CHI85FAMS2.md): Cessna 170B · Chicago(L.Mich), IL · Accident · 2 fatal · Missing aircraft · Final report · Jul 25, 1985 · N3160B · Destroyed
  > At an unknown time during the night of July 25/26 the acft crashed into lake Michigan. Exact wx conditions are unknown. The passenger was recovered from the lake the next morning, along with the two crushed front seats and two buckled interior side panels.…
- [NTSB CHI85FA259](https://openairdocs.org/ntsb/CHI85FA259.md): Taylorcraft BC12-D1 · Mundelein, IL · Accident · 2 fatal · Field investigation · Final report · Jun 28, 1985 · N44340 · Destroyed
  > The acft contacted terrain in a near vertical attitude aprx 1/4 mile east of the plt's private airstrip. There were no witnesses to the accident, however, the acft was observed flying at low altitudes prior to the accident. An autopsy report on the passenger…
- [NTSB CHI84LA090](https://openairdocs.org/ntsb/CHI84LA090.md): Cessna 210D · Rockford, IL · Accident · No injuries · Limited investigation · Final report · Jan 19, 1984 · N502RF · Substantial damage
  > The plt was on a maintenance test flt to check the landing gear hydraulic power pac. He was unable to lower the main landing gear and landed with the nosewheel down. Examination of the hydraulic pac after the accident revealed that the hydraulic system had…
- [NTSB CHI83FA365](https://openairdocs.org/ntsb/CHI83FA365.md): Cessna 182 · Marseilles, IL · Accident · 1 fatal · Field investigation · Final report · Aug 6, 1983 · N6351A · Destroyed
  > The acft was on a parachute jumping mission. After climbing to 9000 ft MSL, 4 sky divers jumped out & the plt began a descent back to the arpt. The acft was seen level at aprx 500 ft AGL & in the aprx position for a downwind leg for a left pattern for runway…
- [NTSB CHI75IC013](https://openairdocs.org/ntsb/CHI75IC013.md): Boeing 727 · Chicago, IL · Incident · No injuries · Closed · Aug 3, 1974 · N1643 · No damage
- [NTSB CHI71FBQ19](https://openairdocs.org/ntsb/CHI71FBQ19.md): Taylorcraft BC12-D · Belle Rive, IL · Accident · Serious injuries · Closed · Oct 5, 1970 · N94900 · Substantial damage
- [NTSB CHI70AC053](https://openairdocs.org/ntsb/CHI70AC053.md): Cessna 150G · Rantoul, IL · Accident · 2 fatal · Closed · Feb 16, 1970 · N2968J · Destroyed
- [NTSB CHI69A0061](https://openairdocs.org/ntsb/CHI69A0061.md): Piper PA-23 · Chicago, IL · Accident · 1 fatal · Closed · Dec 12, 1968 · N4878P · Destroyed
- [NTSB CHI68A0081](https://openairdocs.org/ntsb/CHI68A0081.md): Dehaviland DH104 · Chicago, IL · Accident · 6 fatal · Closed · Mar 8, 1968 · N999NJ · Destroyed

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
  crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
  current_codes AS (
    SELECT e.case_mkey, TRY_CAST(e."tier1Number" AS INTEGER) AS code,
      row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e."isDefiningEvent", false) DESC, e.position) AS n
    FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
    WHERE e.aircrafts_position = 1 AND e."tier1Number" GLOB '[1-9][0-9]*'
      AND (e."isDefiningEvent" OR e.case_mkey IN (SELECT "mKey" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE "isPre1982"))
  ),
  phases AS (
    SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
    FROM current_codes WHERE n = 1
    UNION ALL
    SELECT o.case_mkey, 'older', o."phaseOfFlightCode", w.main
    FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o."phaseOfFlightCode"
    WHERE o.aircrafts_position = 1 AND o."occurrenceNumber" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
  ),
  case_phases AS (
    SELECT p.*, c."eventDate", c."highestInjuryLevel" = 'Fatal' AS fatal, a.aircraft_model_code
    FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = p.case_mkey
    LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
    WHERE c."eventDate" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
  )
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'IL' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 990)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/990/cases?state=IL

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.