NTSB investigations, 1981, MT

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.

Cases per year

19632026
NTSB investigations, 1981, MT per year, 1963–2026: 2,223 cases
19632
196478
196573
196687
196782
196861
196956
197067
197155
197246
197349
197459
197561
197660
197761
197857
197950
198046
198152
198257
198337
198438
198542
198634
198727
198831
198926
199032
199128
199229
199325
199429
199526
199623
199729
199838
199924
200028
200118
200225
200323
200429
200521
200633
200728
200820
200916
201014
201121
201217
201329
201421
201520
201618
201712
201814
201915
202019
202118
202214
202316
202418
202524
202615

Latest cases

Query with SQL
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\") = 1981
    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.

NTSB DEN82FTA08Accident · Serious injuriesClosedPiper PA-24 · Rock Springs, MTDec 27, 1981 · N9376P · Substantial damageNTSB DEN81DTA07Accident · Minor injuriesClosedCessna 152 · Big Timber, MTDec 23, 1981 · N5528B · Substantial damageNTSB DEN82FTA06Accident · No injuriesClosedAeronca 7DC · Billings, MTDec 17, 1981 · N2848E · Substantial damageNTSB DEN82FTA05Accident · No injuriesClosedHughes 269C · Billings, MTNov 26, 1981 · N9832F · Substantial damageNTSB DEN82FTA04Accident · Minor injuriesClosedAyres S2R · Richey, MTNov 23, 1981 · N5686X · Substantial damageNTSB DEN82FTI08Accident · No injuriesClosedCessna 182 · Chinook, MTNov 17, 1981 · N2390R · Substantial damageNTSB DEN82FTI07Accident · No injuriesClosedBeech 35-C33 · Dillion, MTNov 10, 1981 · N5649S · Substantial damageNTSB DEN82FTI06Accident · No injuriesClosedPiper PA-22 · Missoula, MTNov 6, 1981 · N9704D · Substantial damageNTSB DEN82FTI05Accident · Minor injuriesClosedPiper PA-30 · Sheridan, MTOct 31, 1981 · N7306Y · Substantial damageNTSB DEN82FTI04Accident · No injuriesClosedBellanca 7GCBC · Fairfield, MTOct 31, 1981 · N5542K · Substantial damageNTSB DEN82FTI03Accident · No injuriesClosedBell 47D1 · Haugen, MTOct 27, 1981 · N112B · Substantial damageNTSB DEN82FTI02Accident · No injuriesClosedBell 206B · Whitehall, MTOct 25, 1981 · N90142 · Substantial damageNTSB DEN81FTA03Accident · No injuriesClosedBrantly B-2B · Broadus, MTOct 18, 1981 · N2271U · Substantial damageNTSB DEN82FTA02Accident · No injuriesClosedPiper PA-18 · Ekalaka, MTOct 10, 1981 · N62672 · Substantial damageNTSB DEN81FTA01Accident · Serious injuriesClosedPiper PA-18 · Glasgow, MTOct 10, 1981 · N1081A · Substantial damageNTSB DEN82FTI01Accident · Serious injuriesClosedPiper PA-28 · Helena, MTOct 3, 1981 · N30355 · Substantial damageNTSB DEN81FA068Accident · 1 fatalClosedCessna T210L · Big Timber, MTSep 25, 1981 · N94136 · DestroyedNTSB DEN81DTI21Accident · No injuriesClosedCessna 185 · Somers, MTSep 23, 1981 · N5045R · Substantial damageNTSB DEN81FTI20Accident · Serious injuriesClosedBeech 23 · Deer Lodge, MTSep 22, 1981 · N2387Z · Substantial damageNTSB DEN81FTA14Accident · Minor injuriesClosedPiper PA-18 · Zortman, MTSep 19, 1981 · N4432Z · Substantial damageNTSB DEN81FTI19Accident · No injuriesClosedEnstrom 280C · Helena, MTSep 9, 1981 · N51694 · Substantial damageNTSB DEN81FTI18Accident · No injuriesClosedAero Comdr 681 · Great Falls, MTSep 2, 1981 · N578KA · Substantial damageNTSB DEN81FTI17Accident · Serious injuriesClosedPiper PA-18 · Buffalo, MTSep 1, 1981 · N1334A · Substantial damageNTSB DEN81FTI15Accident · Serious injuriesClosedCessna 172N · Libby, MTAug 15, 1981 · N738XH · Substantial damageNTSB DEN81FTA13Accident · No injuriesClosedCessna 177 · Lavina, MTAug 9, 1981 · N34007 · Substantial damageNTSB DEN81FA056Accident · 2 fatalClosedCessna 150M · Sidney, MTAug 5, 1981 · N740AP · DestroyedNTSB DEN81FA055Accident · 3 fatalClosedPiper PA-28 · Kalispell, MTAug 2, 1981 · N20776 · Substantial damageNTSB DEN81FTA12Accident · 1 fatalClosedAero Comdr A-9B · Park City, MTJul 31, 1981 · N7781V · DestroyedNTSB DEN81FTA11Accident · Serious injuriesClosedCessna T-50 · Ft Smith, MTJul 12, 1981 · N68006 · DestroyedNTSB DEN81DTI16Accident · No injuriesClosedCessna 182 · Great Falls, MTJul 12, 1981 · N21055 · Substantial damageNTSB DEN81DTI13Accident · No injuriesClosedCessna 172 · Schafers Mdws, MTJul 12, 1981 · N7304A · Substantial damageNTSB DEN81FTI14Accident · Minor injuriesClosedPiper PA-28 · Seely Lake, MTJul 10, 1981 · N41179 · Substantial damageNTSB DEN81DTA10Accident · No injuriesClosedPiper PA-24 · Miles City, MTJun 27, 1981 · N8935P · Substantial damageNTSB DEN81FTI12Accident · No injuriesClosedBell UH1B · Heart Butte, MTJun 26, 1981 · N4237V · Substantial damageNTSB DEN81FTI11Accident · No injuriesClosedHughes 269C · Ennis, MTJun 26, 1981 · N8988F · Substantial damageNTSB DEN81FTA08Accident · No injuriesClosedCessna 188A · Lavina, MTJun 14, 1981 · N5380J · Substantial damageNTSB DEN81FTA09Accident · No injuriesClosedCessna 188 · Flaxville, MTJun 12, 1981 · N9852V · Substantial damageNTSB DEN81DTI09Accident · No injuriesClosedCessna 180 · Jackson, MTJun 5, 1981 · N3431Y · Substantial damageNTSB DEN81DTI10Accident · No injuriesClosedHiller Acft UH-12E · Ulm, MTJun 2, 1981 · N67088 · Substantial damageNTSB DEN81FTI08Accident · Serious injuriesClosedCessna 188B · Turner, MTMay 27, 1981 · N4827Q · Substantial damageNTSB DEN81FTA07Accident · No injuriesClosedPiper PA-18 · Billings, MTMay 15, 1981 · N7474L · Substantial damageNTSB DEN81DTI07Accident · No injuriesClosedAero Comdr A9B · Townsend, MTMay 9, 1981 · N7949V · Substantial damageNTSB DEN81FTI06Accident · 1 fatalClosedBell 47G-3B · Thompson Falls, MTMay 4, 1981 · N14802 · DestroyedNTSB DEN81FTI05Accident · 1 fatalClosedCessna 185F · Geraldine, MTApr 30, 1981 · N1846R · DestroyedNTSB DEN81DTI04Accident · Minor injuriesClosedCessna 175 · Belgrade, MTApr 12, 1981 · N9428B · Substantial damageNTSB DEN81FTA06Accident · No injuriesClosedCessna 182 · Wolf Point, MTMar 24, 1981 · N2315G · Minor damageNTSB DEN81FA023Accident · 2 fatalClosedMooney M20G · Ryegate, MTMar 21, 1981 · N6844N · DestroyedNTSB DEN81FA021Accident · 2 fatalClosedTavlorcraft BC-12D · Stevensville, MTMar 14, 1981 · N96689 · Substantial damageNTSB DEN81FTA05Accident · No injuriesClosedCessna 210 · Billings, MTFeb 5, 1981 · N3964Y · Substantial damageNTSB DEN81FTA04Accident · Minor injuriesClosedBell 206B · Columbus, MTJan 28, 1981 · N8533K · Substantial damage