Major NTSB investigations: Amateur-built UNKNOWN ENG

6 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.

Cases per year

19842026
Major NTSB investigations: Amateur-built UNKNOWN ENG per year, 1984–2026: 6 cases
19841
19881
20051
20111
20131
20191

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 (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.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.

NTSB ERA20MA001Accident · 7 fatalClass 2 · MajorFinal reportBoeing B17 · Windsor Locks, CTThe pilot’s failure to properly manage the airplane’s configuration and airspeed after he shut down the No. 4 engine following its partial loss of power during the initial climb. Contributing to the accident was the pilot/maintenance director’s inadequate…Oct 2, 2019 · N93012 · DestroyedNTSB ERA14MA060Accident · 2 fatalMajor investigationFinal reportFairchild SA227-AC · La Alianza, PRThe flight crew's excessive elevator input during a rapid descent under night lighting conditions, which resulted in the overstress and breakup of the airplane. Contributing to the accident was an initial loss of airplane control for reasons that could not be…Dec 3, 2013 · N831BC · DestroyedNTSB WPR11MA454Accident · 11 fatalClass 1 · MajorFinal reportNorth American/Aero Classics P-51D · Reno, NVThe reduced stiffness of the elevator trim tab system that allowed aerodynamic flutter to occur at racing speeds. The reduced stiffness was a result of deteriorated locknut inserts that allowed the trim tab attachment screws to become loose and to initiate…Sep 16, 2011 · N79111 · Substantial damageNTSB DCA05MA095Accident · Minor injuriesMajor investigationFinal reportBoeing 747-200 · Aganathe flight crews' failure to verify that the number of landing gear annunciations on the second officer’s panel was consistent with the number specified in the abnormal/emergency procedures checklist, which led to a landing with the nose gear retracted.Aug 19, 2005 · N627US · Substantial damageNTSB FTW88MA083Accident · No injuriesMajor investigationFinal reportBritish Aerospace BAE-3101 · Decatur, TXAirplane's encounter with rought terrain during an attempted forced landing. The forced landing was necessitated after the captain used improper procedures to shutdown the left engine in flight following an unexplained torque fluctuation.Mar 25, 1988 · N411AE · Substantial damageNTSB DCA84AA014Accident · Serious injuriesFinal reportFokker F27-100 · Jamaica, NYDuring the previous flt, the acft encountered light icing conditions while crusing at 4000 ft. the capt stated that the ice disappeared from the acft's structure in the course of its descent at 3000 ft & he did not use wing de-icing or the eng cowling…Jan 13, 1984 · N148PM · Substantial damage