NTSB investigations, 1999, CT

180,610 investigations by the National Transportation Safety Board since 1962: 174,589 accidents, the rest incidents and other occurrences. Each has NTSB’s narrative and, once the investigation is done, its probable cause; since 2008, its findings and sequence of events.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19622026

NTSB investigations, 1999, CT per year, 1962–2026: 1,081 cases
1962	1
1964	32
1965	45
1966	50
1967	48
1968	34
1969	31
1970	34
1971	40
1972	31
1973	34
1974	24
1975	22
1976	18
1977	27
1978	26
1979	26
1980	21
1981	14
1982	22
1983	21
1984	33
1985	17
1986	23
1987	24
1988	17
1989	18
1990	17
1991	15
1992	21
1993	15
1994	13
1995	10
1996	14
1997	8
1998	16
1999	10
2000	9
2001	15
2002	12
2003	8
2004	13
2005	9
2006	7
2007	7
2008	9
2009	2
2010	4
2011	11
2012	6
2013	7
2014	5
2015	9
2016	8
2017	13
2018	8
2019	8
2020	5
2021	5
2022	5
2023	6
2024	6
2025	9
2026	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") = 1999 AND c."eventStateOrRegion" = 'CT' AND c."eventCountry" = 'USA' 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\") = 1999
    AND c.\"eventStateOrRegion\" = 'CT' AND c.\"eventCountry\" = 'USA'
  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") = 1999
  AND c."eventStateOrRegion" = 'CT' AND c."eventCountry" = 'USA'
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.