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NTSB investigations, 1974, MD

180,641 investigations by the National Transportation Safety Board since 1962: 174,620 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, 1974, MD per year, 1962–2026: 1,680 cases
1962	2
1963	1
1964	76
1965	81
1966	68
1967	72
1968	52
1969	69
1970	56
1971	39
1972	36
1973	35
1974	35
1975	32
1976	40
1977	41
1978	31
1979	29
1980	25
1981	22
1982	29
1983	34
1984	28
1985	30
1986	26
1987	32
1988	25
1989	33
1990	29
1991	21
1992	25
1993	16
1994	18
1995	24
1996	27
1997	25
1998	20
1999	24
2000	18
2001	19
2002	12
2003	12
2004	11
2005	11
2006	19
2007	13
2008	20
2009	13
2010	21
2011	23
2012	10
2013	15
2014	13
2015	20
2016	10
2017	14
2018	12
2019	17
2020	12
2021	10
2022	17
2023	8
2024	7
2025	5
2026	10

Where

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") = 1974 AND c."eventStateOrRegion" = 'MD' 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\") = 1974
    AND c.\"eventStateOrRegion\" = 'MD' 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") = 1974
  AND c."eventStateOrRegion" = 'MD' 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 IAD75AI037Accident · 2 fatalClosedPiper PA-32 · Laytonsville, MDDec 29, 1974 · N3840W · Substantial damage NTSB IAD75FIA01Accident · No injuriesClosedGrumman AA5 · California, MDDec 20, 1974 · N9516L · Destroyed NTSB IAD75FIA09Accident · No injuriesClosedCessna 150E · Clinton, MDNov 29, 1974 · N3518J · Substantial damage NTSB IAD75FIG09Accident · No injuriesClosedCessna 180 · Ridgely, MDNov 3, 1974 · N1717C · Substantial damage NTSB IAD75AI027Accident · 1 fatalClosedGlasflugel H301B · Fredrick, MDNov 3, 1974 · N301H · Destroyed NTSB IAD75FIG07Accident · Minor injuriesClosedPiper PA-18 · Emmitsburg, MDOct 23, 1974 · N10468 · Substantial damage NTSB IAD75FIG08Accident · No injuriesClosedCessna 310 · Easton, MDOct 18, 1974 · N157R · Destroyed NTSB IAD75II025Incident · No injuriesClosedPiper PA-34 · Ocean City, MDOct 16, 1974 · N15686 · Minor damage NTSB IAD75FIA04Accident · No injuriesClosedCessna 150 · Clinton, MDOct 1, 1974 · N6089G · Substantial damage NTSB IAD75FIG05Accident · No injuriesClosedMaule M-4C · Easton, MDSep 26, 1974 · N9845M · Substantial damage NTSB IAD75AI016Accident · No injuriesClosedCessna 172M · Indianhead, MDSep 26, 1974 · N20271 · 2 aircraft · Substantial damage NTSB IAD75F1A07Accident · No injuriesClosedPiper PA-28 · Churchton, MDSep 21, 1974 · N8764N · Substantial damage NTSB IAD75FIA06Accident · No injuriesClosedCessna 172B · Clinton, MDSep 8, 1974 · N6918X · Substantial damage NTSB IAD75FIG03Accident · 1 fatalClosedAmer Avco AA1-B · Laytonsville, MDAug 20, 1974 · N9946L · Substantial damage NTSB IAD75FIG02Accident · No injuriesClosedStinson 108-2 · Laurel, MDAug 15, 1974 · N9730K · Substantial damage NTSB IAD75FIG01Accident · No injuriesClosedBeech C18S · Ridgely, MDJul 2, 1974 · N334G · Substantial damage NTSB IAD74FIG31Accident · Minor injuriesClosedSmith Mini · Pasadena, MDJun 29, 1974 · N8426 · Substantial damage NTSB IAD74FIG29Accident · Minor injuriesClosedPiper PA-28 · Whitemarsh, MDJun 12, 1974 · N51175 · Substantial damage NTSB IAD74AI061Accident · 4 fatalClosedCessna 337 · Clinton, MDMay 24, 1974 · N6363F · Destroyed NTSB IAD74AI062Accident · No injuriesClosedPiper PA-23 · Cove Point, MDMay 22, 1974 · N40592 · Substantial damage NTSB IAD74FIG27Accident · Serious injuriesClosedAeronca 65-C · Rocks State Pk, MDMay 18, 1974 · N24277 · Substantial damage NTSB IAD74FIG30Accident · No injuriesClosedPiper PA-22 · Westminster, MDMay 17, 1974 · N5014Z · Substantial damage NTSB IAD74DIG26Accident · No injuriesClosedCessna 150 · Rhodesdale, MDMay 17, 1974 · N6364G · Substantial damage NTSB IAD74AI059Accident · 2 fatalClosedPiper PA-28 · Salisbury, MDMay 16, 1974 · N56624 · Destroyed NTSB IAD74FIG25Accident · Minor injuriesClosedCessna 150 · White Marsh, MDApr 26, 1974 · N6755G · Substantial damage NTSB IAD74FIG24Accident · No injuriesClosedCessna 182H · Stevensville, MDApr 21, 1974 · N2498X · Substantial damage NTSB IAD74FIG23Accident · No injuriesClosedAmer Avco AA1 · Stevensville, MDApr 21, 1974 · N1012G · Substantial damage NTSB IAD74FIG22Accident · No injuriesClosedBeech F35 · College Park, MDApr 21, 1974 · N3811B · Substantial damage NTSB IAD74DIG21Accident · No injuriesClosedCessna 172K · Oakland, MDApr 3, 1974 · N78149 · Substantial damage NTSB IAD74DIG20Accident · No injuriesClosedPiper PA-24 · Harrisonville, MDMar 23, 1974 · N7608P · Substantial damage NTSB IAD74FIA08Accident · No injuriesClosedPiper PA-28 · Clinton, MDMar 22, 1974 · N7126R · Substantial damage NTSB IAD74AI053Accident · 3 fatalClosedNavion B · Bowie, MDMar 17, 1974 · N5245K · Destroyed NTSB IAD74AI052Accident · 1 fatalClosedBellanca 17-31A · Upper Marlboro, MDMar 10, 1974 · N39824 · Destroyed NTSB IAD74AI046Accident · 1 fatalClosedPiper PA-28 · Mchenry, MDFeb 24, 1974 · N6010W · Destroyed NTSB IAD74DIG19Accident · No injuriesClosedHughes 269B · Gaithersburg, MDFeb 13, 1974 · N9397F · Substantial damage