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NTSB investigations: Lycoming 0-540 series, KY

32 cases on aircraft whose registry engine model is Lycoming 0-540 series. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19642026

NTSB investigations: Lycoming 0-540 series, KY per year, 1964–2026: 32 cases
1964	2
1965	3
1966	1
1967	1
1969	2
1970	1
1971	2
1972	1
1973	1
1976	2
1977	1
1979	2
1980	1
1987	1
1992	1
1995	1
1997	1
2000	1
2002	1
2003	1
2010	1
2015	1
2017	1
2019	1
2026	1

Where

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" = 'KY' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41532')) 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\" = 'KY' AND c.\"eventCountry\" = 'USA'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41532'))
  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" = 'KY' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41532'))
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 ERA26LA259Accident · Serious injuriesClass 4 · LimitedFinal reportMaule M-5-235C · Hickman, KYThe pilot’s failure to maintain a proper glide path, which resulted in a runway undershoot.Jul 6, 2026 · N9103E · Substantial damage NTSB ERA20LA053Accident · No injuriesClass 3 · LimitedFinal reportPiper PA28 · Louisville, KYThe pilot’s improper flare to land, which resulted in a hard landing and the nose landing gear collapsing.Dec 10, 2019 · N9097W · Substantial damage NTSB ERA18FA022Accident · 4 fatalField investigationFinal reportPiper PA32 · Fountain Run, KYThe noninstrument-rated pilot's intentional visual flight rules flight into instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation. Contributing to the accident was the pilot's self-induced pressure to complete…Nov 12, 2017 · N3371W · Destroyed NTSB ERA15CA272Accident · Minor injuriesData collectionFinal reportSmith Steen Skybolt · Junction City, KYThe pilot's inaccurate fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.Jul 18, 2015 · N31CS · Substantial damage NTSB ERA10LA348Accident · 1 fatalLimited investigationFinal reportRobinson Helicopter R44 · Marion, KYThe pilot's failure to maintain clearance from power lines during an aerial application flight.Jul 5, 2010 · N857PM · Substantial damage NTSB IAD03LA031Accident · No injuriesLimited investigationFinal reportRobinson R-44 · Russellville, KYThe total loss of engine power due to carburetor ice.Feb 6, 2003 · N7184M · Substantial damage NTSB IAD02LA044Accident · Minor injuriesLimited investigationFinal reportPiper PA-32-260 · Louisville, KYThe pilot's inadvertent selection of an empty fuel tank, which resulted in fuel starvation of the engine.Apr 23, 2002 · N166PA · Substantial damage NTSB NYC01FA053Accident · 3 fatalField investigationFinal reportRobinson R-44A · Sandgap, KYthe pilot's improper weather evaluation, and his failure to maintain terrain clearance while operating over unlighted terrain at night. Factors were the isolated areas of fog, and night conditions.Dec 5, 2000 · N744FC · Destroyed NTSB NYC98LA038Accident · No injuriesLimited investigationFinal reportCessna TR182 · Owenton, KYThe pilot's inadequate preflight/inflight decision and VFR flight in instrument meteorological conditions. Contributing was a low ceiling.Dec 9, 1997 · N4701S · Substantial damage NTSB BFO95LA049Accident · No injuriesLimited investigationFinal reportMaule M-7-235 · Mount Sterling, KYthe pilot's failure to maintain aircraft control during landing. The gusty, crosswind condition and the pilot's inadequate compensation for the wind condition were factors.Apr 21, 1995 · N202GT · Substantial damage NTSB BFO92LA055Accident · Minor injuriesLimited investigationFinal reportPiper PA-24-250 · Falmouth, KYThe pilot misjudged the airplane's altitude and distance in reference to the runway. Contributing to the accident was the fuel system leak.May 8, 1992 · N7851P · Substantial damage NTSB ATL88FA040Accident · Serious injuriesField investigationFinal reportPiper PA-24-250 · Lewisburg, KYThe pilot experienced a loss of engine power at 5500 feet. He was not able to start the engine after completing an emergency procedure. The pilot established an approach to a landing area, and stalled the aircraft on short final. The aircraft moved about 30…Nov 21, 1987 · N6450P · Substantial damage NTSB ATL80DLQ01Accident · No injuriesClosedPiper PA-25 · Paducah, KYOct 1, 1980 · N7243Z · Substantial damage NTSB IAD79FLQ19Accident · Minor injuriesClosedPiper PA-24 · Somerset, KYJul 17, 1979 · N8076P · Substantial damage NTSB IAD79DLQ16Accident · Serious injuriesClosedMaule M-5 · Greenville, KYMay 7, 1979 · N9101E · No damage NTSB IAD77IA056Incident · No injuriesClosedPiper PA-32 · Paducah, KYAug 2, 1977 · N56684 · Minor damage NTSB IAD76DLQ29Accident · No injuriesClosedPiper PA-25 · Smithland, KYJul 12, 1976 · N8641L · Substantial damage NTSB IAD76FLQ24Accident · Serious injuriesClosedPiper PA-24 · Cold Springs, KYJun 20, 1976 · N6232P · Substantial damage NTSB IAD74FLQ01Accident · No injuriesClosedPiper PA-24 · Louisville, KYJul 10, 1973 · N5186P · Substantial damage NTSB CHI73FLQ01Accident · No injuriesClosedPiper PA-24 · Erlanger, KYJul 14, 1972 · N8656P · Substantial damage NTSB CHI72AC014Accident · 2 fatalClosedPiper PA-24 · Bardstown, KYAug 14, 1971 · N7883P · 2 aircraft · Minor damage NTSB CHI71FLQ24Accident · No injuriesClosedAero Comdr A-9 · Morganfield, KYMay 15, 1971 · N7712V · Destroyed NTSB CHI71DLQ19Accident · No injuriesClosedPiper PA-24 · Frankfort, KYDec 19, 1970 · N8183P · Substantial damage NTSB CHI70A0031Accident · 6 fatalClosedPiper PA-32 · Jonestown, KYNov 8, 1969 · N3668W · Destroyed NTSB CHI70D0268Accident · No injuriesClosedPiper PA-25 · Lynnville, KYSep 25, 1969 · N7260Z · Substantial damage NTSB CHI67D0620Accident · No injuriesClosedPiper PA-24 · London, KYApr 30, 1967 · N6407P · Substantial damage NTSB CHI67D0246Accident · No injuriesClosedPiper PA-24 · Lancaster, KYJul 16, 1966 · N5557P · Substantial damage NTSB CHI66F0326Accident · No injuriesClosedPiper PA-28 · Fulton, KYOct 8, 1965 · N8711W · Substantial damage NTSB CHI66F0083Accident · No injuriesClosedPiper PA-24 · Winchester, KYJul 7, 1965 · N7522P · Substantial damage NTSB CHI66F0001Accident · No injuriesClosedPiper PA-24 · Louisville, KYJun 24, 1965 · N6780P · Substantial damage NTSB UNK64X2677Accident · No injuriesClosedPiper PA24 · Lexington, KYJul 6, 1964 · N8387P · Substantial damage NTSB UNK64X0894Accident · No injuriesClosedPiper PA24 · Louisville, KYMar 12, 1964 · N7829P · Substantial damage