NTSB investigations: Lycoming IGSO-540-B1A, FL

16 cases on aircraft whose registry engine model is Lycoming IGSO-540-B1A. 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

19662026

NTSB investigations: Lycoming IGSO-540-B1A, FL per year, 1966–2026: 16 cases
1966	1
1969	1
1973	1
1975	1
1976	1
1977	1
1978	1
1980	4
1981	1
1984	1
1985	1
1991	1
1994	1

Where

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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" = 'FL' 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 ('41535')) 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\" = 'FL' 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 ('41535'))
  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" = 'FL' 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 ('41535'))
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 MIA94LA149Accident · Serious injuriesLimited investigationFinal reportBeech 65 · Pensacola, FLImproper installation of nuts on the nosewheel (split rim) through-bolts by unknown personnel, which resulted in a subsequent failure (separation of the wheel halves).May 23, 1994 · N6166Y · Minor damage NTSB MIA91LA151Accident · Minor injuriesLimited investigationFinal reportBeech 80 · Fort Lauderdale, FLThe improper maintenance work by an unknown person who crossthreaded a fuel nozzle injector fitting which allowed fuel to leak on the exhaust system initiating a fire. No reason for the right engine not to develop full power was found.May 25, 1991 · N5128Y · Destroyed NTSB MIA86LA011Accident · No injuriesLimited investigationFinal reportBeech 65A-80 · Ochopee, FLWhile on a night pleasure flt, both engs surged and lost pwr and an emergency landing was made. The plt stated that he had a total of 3 hrs flt time in this type of acft. He later recanted his statement & stated that he had never flown this type acft before.…Oct 12, 1985 · N8000R · Substantial damage NTSB MIA84FA163Accident · Serious injuriesField investigationFinal reportBeech 65-80 · Opa Locka, FLThe plt stated that he did not check the acft fuel visually prior to departure. About 10 minutes after takeoff, while using auxiliary fuel tanks, the right eng lost power. The plt selected crossfeed & the eng restarted. He then turned off the right fuel…May 8, 1984 · N741H · Substantial damage NTSB MIA81FA102Accident · 2 fatalClosedBeech 65-B80 · Groveland, FLJul 28, 1981 · N1028C · Destroyed NTSB MIA80FLD96Accident · No injuriesClosedBeech 65-B80 · Lake Marion, FLSep 7, 1980 · N242Q · Destroyed NTSB MIA80FLD52Accident · Serious injuriesClosedBeech 65-80 · Sebring, FLApr 6, 1980 · N717Q · Destroyed NTSB MIA80FLA17Accident · No injuriesClosedAero Comdr 680F · N Smyrna Beach, FLMar 15, 1980 · N2302P · Substantial damage NTSB MIA80FA032Accident · 2 fatalClosedAero Comdr 680FL · Sebring, FLFeb 14, 1980 · N662B · Destroyed NTSB MIA78FA060Accident · 1 fatalClosedAero Comdr 680F · Fellsmere, FLApr 5, 1978 · N2998C · Destroyed NTSB MIA77DKT56Accident · No injuriesClosedBeech 65 · W.Palm Beach, FLMar 29, 1977 · N580CA · Substantial damage NTSB MIA7LDLD77Accident · No injuriesClosedBeech 65-80 · Lake Placid, FLAug 15, 1976 · N345X · Destroyed NTSB MIA76FLD68Accident · No injuriesClosedBeech 65-80 · Clearwater, FLApr 22, 1975 · N6811Q · Substantial damage NTSB MIA74FLA28Accident · No injuriesClosedBeech 65-80 · Crestview, FLDec 5, 1973 · N741H · Substantial damage NTSB MIA70D0013Accident · No injuriesClosedBeech 65-80 · Ft.Meyers, FLMay 27, 1969 · N366Q · Substantial damage NTSB MIA67F0162Accident · No injuriesClosedBeech 65-80 · Merritt Isl., FLSep 8, 1966 · N601F · Substantial damage