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NTSB investigations, IL

11 cases where NTSB found Recip eng cyl section.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

20082026

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Latest cases

Query with 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", '01058530')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

duckdb -csv -c "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\", '01058530'))
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

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", '01058530'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.

NTSB CEN25LA322Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-18-150 · Joliet, ILThe failure of the No. 2 cylinder exhaust valve, which resulted in a total loss of engine power.Aug 14, 2025 · N476SM · Substantial damage NTSB CEN19LA098Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA32R · Waterloo, ILThe loss of engine power due to a connecting rod failure for reasons that could not be determined due to secondary mechanical damage, which resulted in a subsequent forced landing.Mar 12, 2019 · N750R · Substantial damage NTSB CEN18LA299Accident · Serious injuriesLimited investigationFinal reportPiper PA28 · Columbia, ILThe 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.Jul 28, 2018 · N624FL · Substantial damage NTSB CEN16LA297Accident · No injuriesLimited investigationFinal reportCessna 172F · Newark, ILThe 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.Jul 31, 2016 · N211FC · Substantial damage NTSB CEN16LA218Accident · No injuriesLimited investigationFinal reportAeronca 7AC · East St. Louis, ILA total loss of engine power due to fracture of the piston pin, which led to fatigue cracking and eventual fracture of the adjacent connecting rod.Jun 11, 2016 · N82694 · Substantial damage NTSB CEN13LA103Accident · Serious injuriesLimited investigationFinal reportAuman JL T-51 · Dekalb, ILThe improper engine overhaul by the airplane kit manufacturer, which resulted in a catastrophic engine failure.Dec 11, 2012 · N512JA · Substantial damage NTSB CEN11LA413Accident · No injuriesLimited investigationFinal reportCessna 172N · Bedford Park, ILA loss of engine power due to a fractured push rod precipitated by a stuck exhaust valve.Jun 18, 2011 · N172NT · Substantial damage NTSB CEN11FA227Accident · No injuriesField investigationFinal reportLancair LC41-550FG · Carbondale, ILThe fatigue fracture and subsequent failure of the No. 2 cylinder exhaust valve during cruise flight, which resulted in a total loss of engine power.Mar 11, 2011 · N521RT · Substantial damage NTSB CEN10LA420Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Toulin, ILA partial loss of engine power as a result of a cracked cylinder and the reduced visibility due to the oil-covered windshield.Jul 21, 2010 · N45297 · Substantial damage NTSB CEN09IA172Incident · No injuriesIncident investigationFinal reportCessna 150 · Grayslake, ILThe 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.Feb 17, 2009 · N747KA · No damage NTSB CHI08CA112Accident · No injuriesData collectionFinal reportPierson RV-6 · Newark, ILThe 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…Apr 20, 2008 · N606JP · Substantial damage