NTSB investigations, 1971, Place not recorded

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

19642026

NTSB investigations, 1971, Place not recorded per year, 1964–2026: 203 cases
1964	1
1965	12
1966	9
1967	12
1968	6
1969	16
1970	12
1971	7
1972	16
1973	11
1974	14
1975	15
1976	8
1977	6
1978	18
1979	19
1980	11
1981	10

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") = 1971 AND c."eventStateOrRegion" = 'UN' 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\") = 1971
    AND c.\"eventStateOrRegion\" = 'UN' 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") = 1971
  AND c."eventStateOrRegion" = 'UN' 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.

NTSB MIA72AM059Accident · 1 fatalClosedCessna 150J · Missing AircraftDec 21, 1971 · N61155 · Destroyed NTSB CHI72AC047Accident · 1 fatalClosedBeech A23 · Missing AircraftNov 25, 1971 · N3500R · Destroyed NTSB FTW72AF013Accident · 2 fatalClosedPiper PA-24 · Missing AircraftJul 7, 1971 · N8779P · Destroyed NTSB NYC71AN126Accident · 4 fatalClosedCessna 172 · Missing AircraftJun 22, 1971 · N3831S · Destroyed NTSB ANC71AA055Accident · 1 fatalClosedCessna 180 · Missing AircraftApr 17, 1971 · N7932V · Destroyed NTSB MIA71AM084Accident · 1 fatalClosedCessna 177B · Missing AircraftMar 20, 1971 · N30844 · Destroyed NTSB CHI71AC050Accident · 2 fatalClosedCessna 172 · Missing AircraftJan 3, 1971 · N8342L · Destroyed