NTSB investigations: Pratt & Whitney R-1830 series, 1971

6 cases on aircraft whose registry engine model is Pratt & Whitney R-1830 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

19622026

NTSB investigations: Pratt & Whitney R-1830 series, 1971 per year, 1962–2026: 70 cases
1962	1
1963	1
1964	2
1965	2
1966	3
1967	1
1968	1
1969	5
1970	2
1971	6
1973	1
1974	4
1977	3
1978	3
1979	2
1980	1
1981	1
1982	4
1984	1
1985	1
1986	1
1987	1
1989	1
1991	1
1992	1
1993	2
1994	1
1995	1
1996	2
1998	2
1999	1
2000	1
2001	2
2006	1
2009	1
2016	2
2018	1
2019	1
2025	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") = 1971 AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52020')) 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52020'))
  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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52020'))
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 MIA72AM038Accident · No injuriesClosedDouglas DC-3 · St Maarten (Atlantic Ocean)Oct 2, 1971 · N1981W · Destroyed NTSB CHI72AC023Accident · Serious injuriesClosedDouglas DC-3 · Peotone, ILSep 6, 1971 · N44992 · Minor damage NTSB SEA72AS004Accident · No injuriesClosedDouglas DC-3C · Redmond, ORJul 26, 1971 · N51041 · Substantial damage NTSB NYC72AN006Accident · Minor injuriesClosedDouglas DC-3 · Windsor Lks, CTJul 16, 1971 · N74844 · Substantial damage NTSB FTW71IF082Incident · No injuriesClosedDouglas DC-3A · Okla.City, OKJun 11, 1971 · N692A · Minor damage NTSB MIA71RKA11Accident · Serious injuriesClosedDouglas DC-3A · East End, U.S. Virgin IslandsApr 5, 1971 · N57372 · Substantial damage