# NTSB investigations, IL: Not determined, general

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 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 CEN23LA403](https://openairdocs.org/ntsb/CEN23LA403.md): Israel Aircraft Industries 1125 Westwind Astra · Wheeling, IL · Accident · No injuries · Class 3 · Limited · Final report · Aug 21, 2023 · N39TT · Substantial damage
  > A loss of braking effectiveness during landing for reasons that could not be determined, which resulted in a runway excursion.
- [NTSB CEN23FA340](https://openairdocs.org/ntsb/CEN23FA340.md): Richards Heavylift Helo UH-1H · Oakdale, IL · Accident · 1 fatal · Class 3 · Field · Final report · Jul 31, 2023 · N567VF · Substantial damage
  > An in-flight loss of control for undetermined reasons.
- [NTSB CEN23LA306](https://openairdocs.org/ntsb/CEN23LA306.md): Robinson Helicopter R44 II · Pocahontas, IL · Accident · No injuries · Class 3 · Limited · Final report · Jul 14, 2023 · N62RK · Substantial damage
  > A reported loss of engine power for undetermined reasons.
- [NTSB CEN23LA295](https://openairdocs.org/ntsb/CEN23LA295.md): Bell UH-1H · Woodlawn, IL · Accident · No injuries · Class 3 · Limited · Final report · Jul 11, 2023 · N900VF · Substantial damage
  > The separation of the tail boom from the fuselage for reasons that could not be determined.
- [NTSB CEN22LA361](https://openairdocs.org/ntsb/CEN22LA361.md): Vans RV-10 · Hurst, IL · Accident · No injuries · Class 3 · Limited · Final report · Aug 3, 2022 · N255CP · Substantial damage
  > A loss of engine power for reasons that could not be determined.
- [NTSB CEN22LA333](https://openairdocs.org/ntsb/CEN22LA333.md): Robinson Helicopter R44 II · Waterloo, IL · Accident · No injuries · Class 3 · Limited · Final report · Jul 22, 2022 · N442JE · Substantial damage
  > The malfunction of the flight controls for undetermined reasons.
- [NTSB CEN22LA323](https://openairdocs.org/ntsb/CEN22LA323.md): Bell 206B · Verona, IL · Accident · No injuries · Class 3 · Limited · Final report · Jul 18, 2022 · N6BU · Substantial damage
  > A loss of rotor rpm for reasons that could not be determined.
- [NTSB CEN22LA128](https://openairdocs.org/ntsb/CEN22LA128.md): Ryan L17 · Livingston, IL · Accident · No injuries · Class 3 · Limited · Final report · Feb 20, 2022 · N5042K · Substantial damage
  > A total loss of engine power due to fuel injection system contamination from an unknown source.
- [NTSB CEN21LA369](https://openairdocs.org/ntsb/CEN21LA369.md): Robinson Helicopter R44 II · Wheeling, IL · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 11, 2021 · N4043B · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on available information.
- [NTSB CEN20LA400](https://openairdocs.org/ntsb/CEN20LA400.md): Safari S · Red Bud, IL · Accident · 1 fatal · Class 3 · Limited · Final report · Sep 19, 2020 · N60WD · Destroyed
  > A loss of control for reasons that could not be determined.
- [NTSB CEN20LA352](https://openairdocs.org/ntsb/CEN20LA352.md): Beech 200 · Rockford, IL · Accident · 1 fatal · Class 3 · Limited · Final report · Aug 20, 2020 · N198DM · Destroyed
  > The pilot’s failure to maintain airplane control following a reduction of thrust in the left engine during takeoff. The reason for the reduction in thrust could not be determined based on the available evidence.
- [NTSB CEN20LA342](https://openairdocs.org/ntsb/CEN20LA342.md): Siebel Auriga · Rockford, IL · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 14, 2020 · N505JS · Substantial damage
  > The total loss of engine power for reasons that could not be determined based on available information.
- [NTSB CEN19LA126](https://openairdocs.org/ntsb/CEN19LA126.md): Piper PA28 · Dwight, IL · Accident · No injuries · Class 3 · Limited · Final report · Apr 19, 2019 · N838JH · Substantial damage
  > A partial loss of engine power due to a restriction in fuel flow for undetermined reasons.
- [NTSB CEN18LA270](https://openairdocs.org/ntsb/CEN18LA270.md): Air Tractor AT 602 · Bismarck, IL · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 13, 2018 · N629LA · Substantial damage
  > A loss of control for reasons that could not be determined based on the available information.
- [NTSB CEN18FA235](https://openairdocs.org/ntsb/CEN18FA235.md): Ercoupe 415 D · Monmouth, IL · Accident · 2 fatal · Field investigation · Final report · Jun 24, 2018 · N94070 · Destroyed
  > A loss of engine power for reasons that could not be determined based on the available information.
- [NTSB CEN18LA008](https://openairdocs.org/ntsb/CEN18LA008.md): Piper PA 34-220T · Sugar Grove, IL · Accident · No injuries · Limited investigation · Final report · Oct 6, 2017 · N4136D · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on the available information.
- [NTSB CEN17LA338](https://openairdocs.org/ntsb/CEN17LA338.md): Golden Eagle Chief · Mt. Zion, IL · Accident · No injuries · Limited investigation · Final report · Sep 3, 2017 · N68N · Substantial damage
  > A total loss of engine power for reasons that could not be determined based on the available information.
- [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 CEN17FA053](https://openairdocs.org/ntsb/CEN17FA053.md): Aircraft Mfg & Design CH601XL Slsa · Marengo, IL · Accident · 1 fatal · Field investigation · Final report · Dec 10, 2016 · N4218 · Destroyed
  > A loss of control in flight for reasons that could not be determined because no anomalies consistent with a preimpact failure or malfunction were identified during the investigation.
- [NTSB CEN16LA166](https://openairdocs.org/ntsb/CEN16LA166.md): Cessna 172 · Brimfield, IL · Accident · Minor injuries · Limited investigation · Final report · Apr 23, 2016 · N7614X · Substantial damage
  > A loss of engine power for reasons that could not be determined, as postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN16LA119](https://openairdocs.org/ntsb/CEN16LA119.md): Beech 95 C55 · Casey, IL · Accident · No injuries · Limited investigation · Final report · Feb 27, 2016 · N88FL · Substantial damage
  > The pilot's inadvertent landing on a taxiway after a reported loss of engine power in both engines, which resulted in an overrun of the paved surface. The reason for the loss of engine power could not be determined because a postaccident test run of the…
- [NTSB CEN15FA289](https://openairdocs.org/ntsb/CEN15FA289.md): Cessna 172P · Bartlett, IL · Accident · 1 fatal · Field investigation · Final report · Jul 3, 2015 · N62681 · Destroyed
  > The pilot’s loss of airplane control for reasons that could not be determined because an examination of the airplane did not reveal any preimpact abnormalities.
- [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 CEN15LA231](https://openairdocs.org/ntsb/CEN15LA231.md): Robinson Helicopter R44 II · Columbia, IL · Accident · No injuries · Limited investigation · Final report · May 13, 2015 · N165RV · Substantial damage
  > A total loss of engine power while maneuvering at low altitude for reasons that could not be determined during postaccident examination.
- [NTSB CEN15LA198](https://openairdocs.org/ntsb/CEN15LA198.md): Robinson Helicopter R44 II · Dunlap, IL · Accident · No injuries · Limited investigation · Final report · Apr 15, 2015 · N754R · Substantial damage
  > A loss of main rotor rpm for reasons that could not be determined during postaccident examinations.
- [NTSB CEN15LA147](https://openairdocs.org/ntsb/CEN15LA147.md): Piper PA 31-350 · Chicago, IL · Accident · No injuries · Limited investigation · Final report · Feb 16, 2015 · N727SC · Substantial damage
  > The collapse of the nose and right main landing gears during landing for reasons that could not be determined because examination of the landing gear system revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB CEN15LA114](https://openairdocs.org/ntsb/CEN15LA114.md): Cessna 150G · Pontiac, IL · Accident · Minor injuries · Limited investigation · Final report · Jan 9, 2015 · N2871S · Substantial damage
  > The flight instructor’s loss of directional control during an attempted go-around with a crosswind. Contributing to the accident was the loss of engine power for reasons that could not be determined during examination of the engine.
- [NTSB CEN13FA509](https://openairdocs.org/ntsb/CEN13FA509.md): Cessna 421C · Paris, IL · Accident · 1 fatal · Field investigation · Final report · Aug 27, 2013 · N229H · Destroyed
  > The pilot's failure to abort the takeoff during the ground roll after detecting the airplane's degraded performance. Contributing to the accident was the pilot's decision to attempt a flight with a known problem with the left engine and the likely partial…
- [NTSB CEN13LA204](https://openairdocs.org/ntsb/CEN13LA204.md): Beech A36 · Cordova, IL · Accident · No injuries · Limited investigation · Final report · Mar 23, 2013 · N6038R · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because a postaccident test run of the engine revealed no mechanical failures or malfunctions that would have precluded normal operation.
- [NTSB CEN13FA089](https://openairdocs.org/ntsb/CEN13FA089.md): Beech 58 · Manhattan, IL · Accident · 1 fatal · Field investigation · Final report · Dec 4, 2012 · N4016A · Substantial damage
  > An in-flight loss of control and impact with terrain for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN12LA632](https://openairdocs.org/ntsb/CEN12LA632.md): Bruce M Barrett Stolp Starlet SA500 · Shelbyville, IL · Accident · No injuries · Limited investigation · Final report · Sep 13, 2012 · N935B · Substantial damage
  > An abrupt, complete loss of engine power during cruise flight for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN12LA481](https://openairdocs.org/ntsb/CEN12LA481.md): Raytheon B36TC · Sugar Grove, IL · Accident · No injuries · Limited investigation · Final report · Jul 25, 2012 · N471BB · Substantial damage
  > The partial loss of engine power for reasons that could not be determined because postaccident testing and examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN12FA395](https://openairdocs.org/ntsb/CEN12FA395.md): Nappi Tito C Lancair 235M · Monroe Center, IL · Accident · 1 fatal · Field investigation · Final report · Jun 26, 2012 · N18TN · Substantial damage
  > The in-flight fire for a reason that could not be determined due to extensive damage from the fire.
- [NTSB CEN12LA456](https://openairdocs.org/ntsb/CEN12LA456.md): Piper PA-46-310P · Metropolis, IL · Accident · No injuries · Limited investigation · Final report · Jun 22, 2012 · N43840 · Substantial damage
  > Landing gear collapse for reasons that could not be determined because testing could not replicate the problem.
- [NTSB CEN11LA656](https://openairdocs.org/ntsb/CEN11LA656.md): Quicksilver GT400 · Bolingbrook, IL · Accident · No injuries · Limited investigation · Final report · Sep 10, 2011 · N2590A · Substantial damage
  > The loss of engine power for reasons that could not be determined during postaccident examination of the engine or airframe.
- [NTSB CEN11LA618](https://openairdocs.org/ntsb/CEN11LA618.md): Vicari Waiex · Marion, IL · Accident · No injuries · Limited investigation · Final report · Sep 2, 2011 · N100VY · Substantial damage
  > The partial loss of engine power during initial climb for undetermined reasons.
- [NTSB CEN11LA596](https://openairdocs.org/ntsb/CEN11LA596.md): Suminski Walter M Jabiru SP · Columbia, IL · Accident · No injuries · Limited investigation · Final report · Aug 17, 2011 · N284E · Substantial damage
  > Separation of the right main wheel during landing rollout for undetermined reasons.
- [NTSB CEN11LA544](https://openairdocs.org/ntsb/CEN11LA544.md): Air Tractor AT802 · Ullin, IL · Accident · Minor injuries · Limited investigation · Final report · Jul 22, 2011 · N396LA · Substantial damage
  > The loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN11FA220](https://openairdocs.org/ntsb/CEN11FA220.md): Mooney M20J · Romeoville, IL · Accident · No injuries · Field investigation · Final report · Feb 19, 2011 · N888DF · Substantial damage
  > The collapse of the left main landing gear during the landing roll for undetermined reasons.
- [NTSB CEN11LA090](https://openairdocs.org/ntsb/CEN11LA090.md): Southerland Freebird Litesport U · Decatur, IL · Accident · 1 fatal · Limited investigation · Final report · Dec 2, 2010 · N415US · Substantial damage
  > The pilot's reported inability to control his amateur-built airplane for undetermined reasons after the airplane inadvertently became airborne while conducting a high-speed taxi.
- [NTSB CEN10LA437](https://openairdocs.org/ntsb/CEN10LA437.md): Air Tractor AT-602 · Yates City, IL · Accident · Minor injuries · Limited investigation · Final report · Jul 25, 2010 · N8521L · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CEN10MA088](https://openairdocs.org/ntsb/CEN10MA088.md): Gates Learjet 35A · Prospect Heights, IL · Accident · 2 fatal · Major investigation · Final report · Jan 5, 2010 · N720RA · Substantial damage
  > A loss of control for undetermined reasons.
- [NTSB CEN10LA023](https://openairdocs.org/ntsb/CEN10LA023.md): Piper PA-32-260 · Peoria, IL · Accident · No injuries · Limited investigation · Final report · Oct 18, 2009 · N3357W · Destroyed
  > A loss of engine power for undetermined reasons during climb out after takeoff, which resulted in a forced landing to a roadway.
- [NTSB CEN09LA466](https://openairdocs.org/ntsb/CEN09LA466.md): Luscombe 8C · Mount Carmel, IL · Accident · 1 fatal · Limited investigation · Final report · Jul 25, 2009 · N37080 · Substantial damage
  > The reason for this accident was not determined.
- [NTSB CEN09LA285](https://openairdocs.org/ntsb/CEN09LA285.md): Rockwell International 112A · Metropolis, IL · Accident · Serious injuries · Limited investigation · Final report · May 10, 2009 · N1348J · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB CHI08CA183](https://openairdocs.org/ntsb/CHI08CA183.md): Challenger II · Williamsfield, IL · Accident · No injuries · Data collection · Final report · Jul 3, 2008 · N23764 · Substantial damage
  > The loss of engine power for undertermined reasons and the unsuitable landing area encountered during the forced landing. Contributing to the accident were the trees and the residence.
- [NTSB CHI08CA175](https://openairdocs.org/ntsb/CHI08CA175.md): Beech A36 · Dwight, IL · Accident · No injuries · Data collection · Final report · Jul 1, 2008 · N6051M · Substantial damage
  > The loss of engine power for undetermined reasons. Contributing to the accident was the highway signpost that the airplane impacted during the landing rollout.
- [NTSB CHI08LA171](https://openairdocs.org/ntsb/CHI08LA171.md): Piper PA-28R-200 · Watseka, IL · Accident · Minor injuries · Limited investigation · Final report · Jun 22, 2008 · N6144J · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CHI08CA170](https://openairdocs.org/ntsb/CHI08CA170.md): Kindig Sonex · Metropolis, IL · Accident · No injuries · Data collection · Final report · Jun 7, 2008 · N184L · Substantial damage
  > The loss of engine power for undermined reasons and the low altitude at the time of engine power loss while turning. An additional cause was the proper touchdown point not attained by the pilot, A contributing factor was the runway lights.

## The whole list in SQL

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

```sql
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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '05000000'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/05000000/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.