Final NTSB investigations: Amateur-built UNKNOWN ENG, ND

12 cases on aircraft whose registry engine model is Amateur-built UNKNOWN ENG. 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

19662026

Final NTSB investigations: Amateur-built UNKNOWN ENG, ND per year, 1966–2026: 12 cases
1966	2
1970	1
1971	1
1973	1
1974	2
1983	1
2000	1
2011	1
2014	1
2016	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."eventStateOrRegion" = 'ND' AND c."eventCountry" = 'USA' AND c."completionStatus" = 'Completed' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('99999')) 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.\"eventStateOrRegion\" = 'ND' AND c.\"eventCountry\" = 'USA'
    AND c.\"completionStatus\" = 'Completed'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('99999'))
  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."eventStateOrRegion" = 'ND' AND c."eventCountry" = 'USA'
  AND c."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('99999'))
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 GAA16CA326Accident · No injuriesData collectionFinal reportSchweizer G 164 · Cummings, NDThe pilot's failure to maintain an adequate rate of descent while landing, which resulted in a hard landing, short of the runway.Jun 17, 2016 · N36333 · Substantial damage NTSB CEN14FA400Accident · 1 fatalField investigationFinal reportLarry Ketterling FEW P-51 Mustang · Lisbon, NDThe partial loss of engine power for a reason that could not be determined because of extensive impact and postcrash fire damage, and the pilot's failure to maintain adequate airspeed, which resulted in the airplane's wing exceeding its critical…Aug 1, 2014 · N116LK · Destroyed NTSB CEN11LA541Accident · No injuriesLimited investigationFinal reportWeatherly 620B · Hettinger, NDInternal failure of the engine for undetermined reasons.Jul 30, 2011 · N90181 · Substantial damage NTSB CHI00LA210Accident · No injuriesLimited investigationFinal reportGrumman G164 · Mcville, NDthe pilot's failure to maintain clearance with the power lines. A factor associated with the accident was the power line.Jul 10, 2000 · N10244 · Substantial damage NTSB DEN83LA099Accident · No injuriesLimited investigationFinal reportEnstrom F-28F · Belfield, NDThe helicopter rolled over on a slight slope in an open field during a landing. The pilot stated that the acft touched down on the left skid, the acft started to tip to the left and he over corrected so that the acft rolled over to the right.Apr 17, 1983 · N8623B · Substantial damage NTSB MKC75DTG10Accident · No injuriesClosedPiper PA-18 · Cooperstown, NDAug 4, 1974 · N167T · Substantial damage NTSB MKC74FTG22Accident · No injuriesClosedPiper PA-25 · Hazelton, NDJun 27, 1974 · N7358Z · Substantial damage NTSB MKC73FTG17Accident · No injuriesClosedStearman A75 · Northwood, NDMay 30, 1973 · N75664 · Substantial damage NTSB MKC71AK045Accident · 2 fatalClosedPiper J3-C · Mcleod, NDFeb 10, 1971 · N92429 · Destroyed NTSB MKC70FDD16Accident · 1 fatalClosedPiper PA-18 · Lehr, NDJun 19, 1970 · N3281Z · Destroyed NTSB MKC67A0020Accident · 1 fatalClosedBoeing A75 · Hatton, NDAug 31, 1966 · N75664 · Destroyed NTSB MKC67D0088Accident · No injuriesClosedPiper PA-18 · Marion, NDJun 24, 1966 · N3281Z · Substantial damage