Major NTSB investigations: Douglas DC-9-31

8 cases on aircraft the registry lists as Douglas DC-9-31. 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

19692026

Major NTSB investigations: Douglas DC-9-31 per year, 1969–2026: 8 cases
1969	1
1970	2
1971	2
1976	2
1986	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 (c.board_report_url IS NOT NULL OR c."investigationClass" = 'Class 1' OR c."caseType" = 'Major - Launch') AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3022065')) 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 (c.board_report_url IS NOT NULL OR c.\"investigationClass\" = 'Class 1' OR c.\"caseType\" = 'Major - Launch')
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3022065'))
  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 (c.board_report_url IS NOT NULL OR c."investigationClass" = 'Class 1' OR c."caseType" = 'Major - Launch')
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3022065'))
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 CHI86MA142Incident · No injuriesMajor investigationFinal reportMcdonnell Douglas DC-9-31 · Chicago, ILU.S. Air flight 373 passed over American airlines flight 695 at the intersection of runways 32R and 4L while both aircraft were taking off. Both aircraft had been cleared for takeoff by the local controller at o'hare tower. The aircraft came within twenty…May 17, 1986 · N973VJ · 2 aircraft · Minor damage NTSB DCA76AZ029Accident · Serious injuriesClosedDouglas DC-9 · Philadelphia, PAJun 23, 1976 · N994VJ · Destroyed NTSB SEA761S041Incident · No injuriesClosedDouglas DC-9 · Spokane, WAApr 1, 1976 · N9333 · No damage NTSB NYC72AN074Accident · 2 fatalClosedCessna 206 · Raleigh, NCDec 4, 1971 · N2110F · 2 aircraft · Destroyed NTSB DCA71A0010Accident · 50 fatalClosedDouglas DC-9 · Duarte, CAJun 6, 1971 · N9345 · 2 aircraft · Destroyed NTSB DCA71AZ005Accident · 75 fatalClosedDouglas DC-9 · Huntington, WVNov 14, 1970 · N97S · Destroyed NTSB FTW70AF046Accident · No injuriesClosedDouglas DC-9 · Harlingen, TXJan 11, 1970 · N1308T · Substantial damage NTSB DCA70A0004Accident · 83 fatalClosedPiper PA-28 · Fairland, INSep 9, 1969 · N7374J · 2 aircraft · Destroyed