NTSB investigations: Continental IO-520 series, 1981, OK

6 cases on aircraft whose registry engine model is Continental IO-520 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

19652026

NTSB investigations: Continental IO-520 series, 1981, OK per year, 1965–2026: 80 cases
1965	1
1966	3
1967	1
1968	1
1969	1
1970	1
1971	1
1972	3
1973	3
1974	4
1975	2
1978	2
1979	4
1980	2
1981	6
1983	2
1984	1
1985	2
1987	1
1991	1
1992	2
1995	2
1996	1
1997	1
1999	2
2001	1
2003	1
2004	2
2006	1
2007	3
2009	2
2010	2
2013	2
2015	1
2016	2
2017	5
2018	1
2020	1
2022	3
2023	3

Where

Open the map

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 year(c."eventDate") = 1981 AND c."eventStateOrRegion" = 'OK' 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 ('17032')) 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 year(c.\"eventDate\") = 1981
    AND c.\"eventStateOrRegion\" = 'OK' 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 ('17032'))
  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 year(c."eventDate") = 1981
  AND c."eventStateOrRegion" = 'OK' 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 ('17032'))
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 FTW82DPJ07Accident · No injuriesClosedCessna 401 · Oklahoma City, OKNov 27, 1981 · N4099Q · Substantial damage NTSB FTW81DPJ39Accident · No injuriesClosedCessna 188B · Anioch, OKSep 20, 1981 · N9560G · Substantial damage NTSB FTW81DPJ41Accident · No injuriesClosedBeech A36 · Stillwater, OKAug 21, 1981 · N440SU · Substantial damage NTSB FTW81DPM15Accident · Serious injuriesClosedCessna A188B · Mcalester, OKJun 30, 1981 · N4823Q · Destroyed NTSB FTW81DPJ15Accident · No injuriesClosedCessna 188 · Seiling, OKApr 9, 1981 · N4830R · Substantial damage NTSB FTW81DPJ13Accident · No injuriesClosedCessna A188B · Cherokee, OKApr 1, 1981 · N731AM · Substantial damage