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NTSB investigations, 1977, MD

180,624 investigations by the National Transportation Safety Board since 1962: 174,602 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, 1977, MD per year, 1962–2026: 1,679 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	9

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") = 1977 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\") = 1977
    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") = 1977
  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 IAD78DIG04Accident · No injuriesClosedCessna 182 · Hempstead, MDDec 23, 1977 · C-FUFE · Substantial damage NTSB IAD78FA019Accident · 2 fatalClosedVarga 2150A · Jessup, MDDec 5, 1977 · N4612V · Destroyed NTSB IAD78FIG03Accident · Minor injuriesClosedCessna 195B · Elkton, MDDec 4, 1977 · N4472C · Substantial damage NTSB IAD78FA011Accident · 2 fatalClosedPiper PA-32 · Emmitsburg, MDNov 7, 1977 · N3347W · Destroyed NTSB IAD78FIG02Accident · No injuriesClosedCessna 210 · Edgewater, MDNov 1, 1977 · N7429E · Substantial damage NTSB IAD78FIG01Accident · Minor injuriesClosedPiper PA28 · Baltimore, MDOct 10, 1977 · N5310T · Destroyed NTSB IAD77FIG36Accident · No injuriesClosedBeech 200 · Gaithersburg, MDSep 26, 1977 · N725MC · Substantial damage NTSB IAD77FIG35Accident · No injuriesClosedHughes 269B · Gaithersburg, MDSep 15, 1977 · N9568F · Substantial damage NTSB IAD77FA066Accident · Serious injuriesClosedPiper PA-28 · Clinton, MDSep 15, 1977 · N9879W · Destroyed NTSB IAD77FIA23Accident · Serious injuriesClosedChampion 7ACA · Brandywine, MDAug 28, 1977 · N9110L · Substantial damage NTSB IAD77FIG34Accident · No injuriesClosedCessna 150L · Tryaskin, MDAug 21, 1977 · N10765 · Substantial damage NTSB IAD77FIG32Accident · Minor injuriesClosedPiper PA-22 · Edgewater, MDAug 14, 1977 · N8006C · Substantial damage NTSB IAD77FIG33Accident · No injuriesClosedPiper PA-22 · Mitchellville, MDAug 11, 1977 · N2544A · Substantial damage NTSB IAD77FA058Accident · 1 fatalClosedGrum Amer AA1-B · Unity, MDAug 11, 1977 · N9677L · Destroyed NTSB IAD77IA057Incident · No injuriesClosedBell 206L · Poolesville, MDAug 7, 1977 · N16664 · No damage NTSB IAD77FIG31Accident · No injuriesClosedBeech 23 · Essex, MDJul 27, 1977 · N824PJ · Substantial damage NTSB IAD77FIG28Accident · No injuriesClosedBeech 23 · Gaithersburg, MDJul 23, 1977 · N6VT · Substantial damage NTSB IAD77FIG26Accident · No injuriesClosedCessna 150 · Baltimore, MDJul 18, 1977 · N50823 · Substantial damage NTSB IAD77FIG27Accident · Minor injuriesClosedCessna 172C · Stevensville, MDJul 17, 1977 · N2029Y · Substantial damage NTSB IAD77FIG25Accident · No injuriesClosedBeech B24R · Carmichael, MDJul 15, 1977 · N2570W · Substantial damage NTSB IAD77FIG24Accident · Minor injuriesClosedCessna 150G · Aberdeen, MDJul 11, 1977 · N6310S · Substantial damage NTSB IAD77FIA20Accident · Minor injuriesClosedAeronca 7AC · Balalton, MDJul 7, 1977 · N85226 · Substantial damage NTSB IAD77FIG30Accident · No injuriesClosedRyan ST-A · Frederick, MDJul 1, 1977 · N17364 · Substantial damage NTSB IAD77FIG29Accident · No injuriesClosedChampion 7KCAB · Ocean City, MDJul 1, 1977 · N7532F · Substantial damage NTSB IAD77FIG22Accident · No injuriesClosedLake LA4 · Essex, MDJun 30, 1977 · N1236L · Substantial damage NTSB IAD77FIG21Accident · Minor injuriesClosedCessna 172 · College Park, MDJun 25, 1977 · N2477L · Substantial damage NTSB IAD77DIA19Accident · No injuriesClosedCessna 150A · California, MDJun 25, 1977 · N9852J · Substantial damage NTSB IAD77FA043Accident · 1 fatalClosedCessna 172 · Cavetown, MDMay 31, 1977 · N20480 · Destroyed NTSB IAD77FIG20Accident · Minor injuriesClosedSchweizer 1-26 · Frostburg, MDMay 21, 1977 · N8668R · Substantial damage NTSB IAD77FIG19Accident · Minor injuriesClosedPiper PA22 · Laytonsville, MDMay 20, 1977 · N1612P · Substantial damage NTSB IAD77FIG18Accident · Serious injuriesClosedAero Cmdr 200D · Sussex, MDMay 15, 1977 · N5501M · Substantial damage NTSB IAD77FIG17Accident · No injuriesClosedGrum Amer AA1 · Darlington, MDMay 8, 1977 · N5748L · Substantial damage NTSB IAD77FIA13Accident · Serious injuriesClosedBeech B-35 · Hollywood, MDMay 8, 1977 · N8922A · Destroyed NTSB IAD77FIG16Accident · No injuriesClosedEnstrom F28A · Pikesville, MDApr 21, 1977 · N9566 · Destroyed NTSB IAD77IA037Incident · No injuriesClosedPiper PA-32R · Forest Hills, MDApr 20, 1977 · N4505X · Minor damage NTSB IAD77FIG15Accident · Minor injuriesClosedChampion 7ECA · Churchville, MDMar 27, 1977 · N11030 · Substantial damage NTSB IAD77DIA10Accident · Minor injuriesClosedPitts S1 · Clinton, MDMar 19, 1977 · N4111 · Substantial damage NTSB IAD77FIG13Accident · Serious injuriesClosedCessna 172 · Cumberland, MDMar 18, 1977 · N75632 · Destroyed NTSB IAD77FIG11Accident · Serious injuriesClosedBellanca 7ECA · Galena, MDFeb 19, 1977 · N57679 · Substantial damage NTSB IAD77FIG10Accident · No injuriesClosedHughes 269B · Gaithersburg, MDJan 23, 1977 · N9483F · Substantial damage NTSB IAD77FA017Accident · Serious injuriesClosedDouglas DC-8 · Baltimore, MDJan 16, 1977 · N904CL · Minor damage