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

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, AZ per year, 1965–2026: 167 cases
1965	3
1966	2
1967	4
1968	6
1969	2
1970	7
1971	1
1972	1
1973	2
1974	5
1975	3
1976	6
1977	8
1978	8
1979	7
1980	5
1981	6
1982	5
1983	4
1984	4
1985	2
1986	1
1987	2
1988	3
1990	1
1991	3
1992	3
1993	3
1994	3
1996	2
1997	2
1998	2
1999	1
2000	4
2001	3
2002	3
2003	4
2004	3
2005	2
2006	3
2007	2
2008	1
2009	2
2010	5
2011	2
2013	1
2014	1
2015	3
2017	2
2018	3
2019	1
2022	3
2023	1
2026	1

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" = 'AZ' 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\" = 'AZ' 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" = 'AZ' 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 LAX82DUJ05Accident · No injuriesClosedCessna A185F · Prescott, AZNov 7, 1981 · N3308S · Substantial damage NTSB LAX81DUJ61Accident · No injuriesClosedBeech V35A · Seligman, AZMay 6, 1981 · N8405N · Substantial damage NTSB LAX81FUJ45Accident · Serious injuriesClosedCessna A188 · San Manuel, AZApr 1, 1981 · N8009V · Destroyed NTSB LAX81FUJ43Accident · No injuriesClosedCessna 210D · Phoenix, AZMar 18, 1981 · N393Q · Substantial damage NTSB LAX81DUJ34Accident · No injuriesClosedBeech F33A · Goodyear, AZFeb 13, 1981 · N4764M · Substantial damage NTSB LAX81FA037Accident · 4 fatalClosedBeech S35 · Casa Grande, AZJan 16, 1981 · N844B · Destroyed