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NTSB investigations, 1973, MT

180,611 investigations by the National Transportation Safety Board since 1962: 174,590 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

19632026

NTSB investigations, 1973, MT per year, 1963–2026: 2,223 cases
1963	2
1964	78
1965	73
1966	87
1967	82
1968	61
1969	56
1970	67
1971	55
1972	46
1973	49
1974	59
1975	61
1976	60
1977	61
1978	57
1979	50
1980	46
1981	52
1982	57
1983	37
1984	38
1985	42
1986	34
1987	27
1988	31
1989	26
1990	32
1991	28
1992	29
1993	25
1994	29
1995	26
1996	23
1997	29
1998	38
1999	24
2000	28
2001	18
2002	25
2003	23
2004	29
2005	21
2006	33
2007	28
2008	20
2009	16
2010	14
2011	21
2012	17
2013	29
2014	21
2015	20
2016	18
2017	12
2018	14
2019	15
2020	19
2021	18
2022	14
2023	16
2024	18
2025	24
2026	15

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") = 1973 AND c."eventStateOrRegion" = 'MT' 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\") = 1973
    AND c.\"eventStateOrRegion\" = 'MT' 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") = 1973
  AND c."eventStateOrRegion" = 'MT' 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 SEA74FTA15Accident · No injuriesClosedCessna 150 · Belle Creek, MTDec 29, 1973 · N2295J · Substantial damage NTSB SEA74DTI15Accident · No injuriesClosedPiper PA-22 · Hogeland, MTDec 15, 1973 · N803A · Substantial damage NTSB SEA74DTI14Accident · No injuriesClosedBell 47G-3 · Missoula, MTDec 2, 1973 · N178B · Substantial damage NTSB SEA74DTA14Accident · No injuriesClosedPiper J-3 · Culbertson, MTNov 21, 1973 · N70234 · Substantial damage NTSB SEA74FTA13Accident · No injuriesClosedCessna 172H · Forsyth, MTNov 18, 1973 · N1720F · Substantial damage NTSB SEA74DTI13Accident · No injuriesClosedStinson 108-2 · Plains, MTNov 9, 1973 · N9610K · Substantial damage NTSB SEA74DTI12Accident · No injuriesClosedPiper PA-22 · Martinsdale, MTOct 28, 1973 · N4563Z · Substantial damage NTSB SEA74FTI11Accident · Minor injuriesClosedCessna 182 · Bozeman, MTOct 15, 1973 · N5673B · Destroyed NTSB SEA74FTI10Accident · No injuriesClosedCallair A-2 · Anaconda, MTOct 13, 1973 · N2918V · Substantial damage NTSB SEA74FTA11Accident · No injuriesClosedCessna 185E · Custer, MTOct 10, 1973 · N4560F · Substantial damage NTSB SEA74AS018Accident · 8 fatalClosedCessna 402B · Utica, MTSep 29, 1973 · N69307 · Destroyed NTSB SEA74DTA10Accident · No injuriesClosedBellanca 7GCA · Lodge Pole, MTSep 25, 1973 · N57476 · Substantial damage NTSB SEA74DTA09Accident · No injuriesClosedCessna 170B · Glasgow, MTSep 24, 1973 · N3469C · Substantial damage NTSB SEA74DTA08Accident · No injuriesClosedCessna 175A · Willard, MTSep 23, 1973 · N6761E · Substantial damage NTSB SEA74AS015Accident · 2 fatalClosedAerostar M20F · St Xavier, MTSep 11, 1973 · N6805V · Destroyed NTSB SEA74FTA07Accident · Minor injuriesClosedBell 206B · Lewistown, MTSep 10, 1973 · N8110J · Destroyed NTSB SEA74DTI09Accident · No injuriesClosedCessna 182 · Missoula, MTSep 10, 1973 · N8957G · Substantial damage NTSB SEA74FTI08Accident · No injuriesClosedBell 205-A1 · Thompson Fls, MTAug 21, 1973 · N2215W · Destroyed NTSB SEA74AS006Accident · Serious injuriesClosedBoeing 737 · Missoula, MTAug 16, 1973 · N7381F · No damage NTSB SEA74FTA06Accident · Serious injuriesClosedCessna 140 · Ekalaka, MTAug 13, 1973 · N77002 · Substantial damage NTSB SEA74D7A05Accident · No injuriesClosedPiper PA-22 · Birney, MTJul 28, 1973 · N3369B · Substantial damage NTSB SEA74FTA04Accident · No injuriesClosedCessna 185 · Billings, MTJul 27, 1973 · N9920X · Substantial damage NTSB SEA74FTI07Accident · No injuriesClosedSchweizer 2-33 · Belgrade, MTJul 26, 1973 · N7758S · Substantial damage NTSB SEA74DTI06Accident · No injuriesClosedCessna 195A · Heart Butte, MTJul 19, 1973 · N1528D · Substantial damage NTSB SEA74FTA03Accident · No injuriesClosedPiper PA-24 · Harlowton, MTJul 17, 1973 · N7583P · Substantial damage NTSB SEA74FTA02Accident · No injuriesClosedPiper PA-28 · Flaxville, MTJul 15, 1973 · N7360J · Substantial damage NTSB SEA74DTI05Accident · No injuriesClosedCessna 180 · Kalispell, MTJul 15, 1973 · N93330 · Substantial damage NTSB SEA74DTI04Accident · No injuriesClosedCessna 172 · Chester, MTJul 12, 1973 · N3809L · Substantial damage NTSB SEA74FTA01Accident · No injuriesClosedPitts S1C · Miles City, MTJul 8, 1973 · N26P · Substantial damage NTSB SEA74DTI03Accident · No injuriesClosedCessna 172 · Libby, MTJul 8, 1973 · N8353X · Substantial damage NTSB SEA74DTI02Accident · No injuriesClosedPiper PA-12 · Ennis, MTJul 6, 1973 · N78495 · Substantial damage NTSB SEA74FTI01Accident · Serious injuriesClosedPiper PA-25 · Glen, MTJul 5, 1973 · N6508Z · Destroyed NTSB DEN73AD057Accident · Serious injuriesClosedBoeing 737 · W.Yellowstne, MTJun 29, 1973 · N4508W · No damage NTSB SEA73FTI23Accident · Serious injuriesClosedPiper PA-25 · Belgrade, MTJun 27, 1973 · N6441Z · Destroyed NTSB SEA73AS041Accident · 1 fatalClosedGlasflugel Libell · Choteau, MTJun 26, 1973 · N273S · Destroyed NTSB SEA73FTI22Accident · No injuriesClosedPiper PA-25 · Belgrade, MTJun 22, 1973 · N6530Z · Substantial damage NTSB SEA73FTA09Accident · No injuriesClosedCessna 172 · Malta, MTJun 13, 1973 · N46380 · Substantial damage NTSB SEA73FTA08Accident · No injuriesClosedCessna 210 · Ekalaka, MTMay 22, 1973 · N6660X · Substantial damage NTSB SEA73FTI21Accident · 1 fatalClosedCessna 188 · Rudyard, MTMay 21, 1973 · N5545S · Substantial damage NTSB SEA73FTA07Accident · 1 fatalClosedBell 47G-3 · Moore, MTMay 19, 1973 · N8401E · Destroyed NTSB SEA73FTI20Accident · No injuriesClosedBell 47G3B1 · Dayton, MTMay 16, 1973 · N73946 · Destroyed NTSB SEA73AS033Accident · 2 fatalClosedAmer Avco AA-1B · W.Yellowstne, MTMay 15, 1973 · N9638L · Destroyed NTSB SEA73FTA06Accident · No injuriesClosedBell 47G-3B · Billings, MTApr 23, 1973 · N204Z · Substantial damage NTSB SEA73FTI19Accident · No injuriesClosedPiper PA-22 · Garrison, MTApr 15, 1973 · N4763A · Substantial damage NTSB SEA73FTA05Accident · No injuriesClosedBellanca 7GCBC · Hammon, MTApr 2, 1973 · N68500 · Substantial damage NTSB SEA73AS029Accident · 2 fatalClosedAeronca 15AC · Summit, MTApr 1, 1973 · N1369H · Destroyed NTSB SEA73DTI18Accident · No injuriesClosedPiper PA-18A · Cut Bank, MTMar 24, 1973 · N3087Z · Substantial damage NTSB SEA73DT117Accident · No injuriesClosedPiper PA-18 · Jackson, MTFeb 19, 1973 · N4610Y · Substantial damage NTSB SEA73AS021Accident · 1 fatalClosedBellanca 7GCBC · Brockway, MTFeb 4, 1973 · N31265 · Destroyed