# NTSB investigations, IL: Loss of engine power (partial)

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 CEN26LA330](https://openairdocs.org/ntsb/CEN26LA330.md): Cessna 152 · Bolingbrook, IL · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Sep 29, 2026 · N69009 · Substantial damage
  > On September 29, 2026, about 1828 central daylight time, a Cessna 152 II airplane, N69009, sustained substantial damage when it was involved in an accident near Bolingbrook, Illinois. The flight instructor and the student pilot sustained minor injuries. The…
- [NTSB CEN25LA313](https://openairdocs.org/ntsb/CEN25LA313.md): Air Tractor AT-502 · Lawrenceville, IL · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Aug 10, 2025 · N9193V · Substantial damage
  > On August 10, 2025, about 1321 central daylight time, an Air Tractor AT-502, was substantially damaged when it was involved in an accident near Lawrenceville, Illinois. The pilot sustained minor injuries. The airplane was operated as a Title 14 Code of…
- [NTSB CEN23LA317](https://openairdocs.org/ntsb/CEN23LA317.md): Grumman G-164A · Patoka, IL · Accident · No injuries · Class 3 · Limited · Final report · Jul 22, 2023 · N9892 · Substantial damage
  > A partial loss of engine power due to the failure of two compressor turbine blades as a result of the engine operating near or above the engine’s operating limits for an undetermined amount of time beyond the recommended engine’s TBO limit, which led to…
- [NTSB CEN20LA403](https://openairdocs.org/ntsb/CEN20LA403.md): Cessna 177RG · Palatine, IL · Accident · No injuries · Class 3 · Limited · Final report · Sep 17, 2020 · N2699V · Substantial damage
  > The loss of partial engine power due to fuel starvation during departure which resulted in a forced landing and collision with a utility pole.
- [NTSB CEN20LA219](https://openairdocs.org/ntsb/CEN20LA219.md): Flight Design Ctls · Beecher, IL · Accident · 1 fatal · Class 3 · Limited · Final report · Jun 8, 2020 · N257V · Destroyed
  > The pilot’s decision to continue takeoff after a partial loss of engine power, and the pilot’s subsequent failure to control airplane pitch during a forced landing. Contributing to the accident was the partial loss of engine power for reasons that could not…
- [NTSB CEN19LA152](https://openairdocs.org/ntsb/CEN19LA152.md): Rand Robinson KR2 · Poplar Grove, IL · Accident · Minor injuries · Class 3 · Limited · Final report · May 26, 2019 · N886MJ · Substantial damage
  > The loss of engine power due to vapor lock of the throttle body injection system.
- [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 CEN18LA299](https://openairdocs.org/ntsb/CEN18LA299.md): Piper PA28 · Columbia, IL · Accident · Serious injuries · Limited investigation · Final report · Jul 28, 2018 · N624FL · Substantial damage
  > The airplane's inability to climb due to reduced engine power as a result of insufficient compression in all cylinders and fouled spark plugs in the No. 2 cylinder while operating near its maximum gross weight.
- [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 CEN16LA387](https://openairdocs.org/ntsb/CEN16LA387.md): Pahnke Vernon A Vans RV 9A · Newark, IL · Accident · Minor injuries · Limited investigation · Final report · Sep 22, 2016 · N699RV · Substantial damage
  > The pilot's failure to properly assemble the fuel pump, which resulted in the loss of fuel pressure and the subsequent partial loss of engine power.
- [NTSB CEN16LA297](https://openairdocs.org/ntsb/CEN16LA297.md): Cessna 172F · Newark, IL · Accident · No injuries · Limited investigation · Final report · Jul 31, 2016 · N211FC · Substantial damage
  > The failure of the No. 4 cylinder exhaust valve, which resulted in a partial loss of engine power and a forced landing. Contributing to the valve failure and loss of engine power was the extended time since the last overhaul.
- [NTSB CEN12CA599](https://openairdocs.org/ntsb/CEN12CA599.md): Cessna 152 · Rockford, IL · Accident · No injuries · Data collection · Final report · Aug 17, 2012 · N152BA · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no anomalies.
- [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 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 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 CEN11FA007](https://openairdocs.org/ntsb/CEN11FA007.md): Piper PA-32R-300 · Naperville, IL · Accident · Serious injuries · Field investigation · Final report · Oct 6, 2010 · N3402Q · Substantial damage
  > The pilot’s failure to abort the takeoff when he realized the airplane was not attaining sufficient takeoff and climb performance. Contributing to the accident was the airplane’s partial loss of engine power due to an obstruction of the fuel servo air inlet…
- [NTSB CEN10CA252](https://openairdocs.org/ntsb/CEN10CA252.md): Piper J3C-65 · Sandwich, IL · Accident · No injuries · Data collection · Final report · May 15, 2010 · N22394 · Substantial damage
  > The pilot's delay in using carburetor heat resulting in a partial loss of engine power due to carburetor icing.
- [NTSB CEN09FA243](https://openairdocs.org/ntsb/CEN09FA243.md): Engineering and Research 415C · Sandwich, IL · Accident · 2 fatal · Field investigation · Final report · Apr 11, 2009 · N87384 · Destroyed
  > The pilot's failure to execute an immediate forced landing to a suitable field and the engine's partial loss of power for an undetermined reason.
- [NTSB CEN09IA172](https://openairdocs.org/ntsb/CEN09IA172.md): Cessna 150 · Grayslake, IL · Incident · No injuries · Incident investigation · Final report · Feb 17, 2009 · N747KA · No damage
  > The failure of the number 1 cylinder intake valve which resulted in a partial loss of engine power. Contributing to the incident was the failure of the operator to maintain the engine per manufacturer's recommendations.
- [NTSB CHI08LA134](https://openairdocs.org/ntsb/CHI08LA134.md): Cessna 150M · Palestine, IL · Accident · Serious injuries · Limited investigation · Final report · May 12, 2008 · N66381 · Substantial damage
  > The loss of engine power due to carburetor icing. Contributing to the accident were the pilot's decision to conduct a low-power spiraling descent operation during conditions conducive to carburetor icing, and the weather that was conducive to carburetor icing.
- [NTSB CHI08CA112](https://openairdocs.org/ntsb/CHI08CA112.md): Pierson RV-6 · Newark, IL · Accident · No injuries · Data collection · Final report · Apr 20, 2008 · N606JP · Substantial damage
  > The partial loss of engine power due to the fracture of the number 4 exhaust valve, and the pilot's decision to shut-down the engine without sufficient altitude to ensure a safe glide path to the runway. Contributing to the accident was the barbed wire fence…

## 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 e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e."isDefiningEvent" AND e."tier2Number" = '342')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/342/cases?state=IL

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