Major NTSB investigations

6 cases where the first occurrence was “Loss of engine power(partial) - mech failure/malf”.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19852026

Major NTSB investigations per year, 1985–2026: 6 cases
1985	2
1986	1
1987	2
1990	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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 352) 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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 352)
  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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 352)
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 FTW90MA161Accident · 3 fatalMajor investigationFinal reportGrumman G-159 · Houston, TXPartial failure of the left engine fuel pump, which resulted in a partial loss of power in the left engine, but not enough of a power loss to trigger and/or complete the autofeathering operation of the left propeller, thus allowing insufficient time for the…Aug 23, 1990 · N80RD · Destroyed NTSB DCA88MA011Accident · 6 fatalMajor investigationFinal reportPiper PA-31-350 · Kenai, AKThe pilot had just departed the runway when he reported to the flight service station that he had engine problems. The aircraft was observed by witnesses to be about 300 ft on a descending downwind. The pilot stated that he was circling for runway one.…Dec 23, 1987 · N496SC · Destroyed NTSB DCA87MA024Accident · 5 fatalMajor investigationFinal reportLockheed L-382G · Travis Afb, CACrashed in steep left turn drg go-around after balked landing. Instructor took controls and initiated go-around after student lndd in improper attitude. Engines number 1 & 2 failed to respond when throttles advanced. Both engines decelerated. Airspeed…Apr 9, 1987 · N517SJ · Destroyed NTSB BFO87MA007Accident · 1 fatalMajor investigationFinal reportBeech 65-A80 · Baltimore, MDDrg clb after tkof, l eng seized. Plt said he atmtd 1 eng restart; prop would not rotate or feather. No emerg declared. Plt stated eng shut-dwn proc was used, scientific bus sws were shut off, r gen was recycled & appeared to oper normally. Plts got imt…Nov 8, 1986 · N304D · Destroyed NTSB FTW86MA018Accident · 2 fatalMajor investigationFinal reportBell 222UT · East CameronThree pax rprtd that just prior to reaching the helipad, the helicopter's forward movement stopped and the helicopter wobbled or yawed from side to side. The pax's rprted that the pilot appeared to be trying to gain altitude and go forward when they heard a…Oct 24, 1985 · N3194M · Destroyed NTSB DCA85AA036Accident · 31 fatalFinal reportDouglas DC-9-14 · Milwaukee, WIThe Safety Board's full report on this investigation is provided as Aviation Accident Report number AAR-87/01. To obtain a copy of this report, or to view the executive summary online, please see the Web site at http://www.ntsb.gov/publictn/publictn.htm Drg…Sep 6, 1985 · N100ME · Destroyed