NTSB investigations: Allison 250-C20 series, KY

6 cases on aircraft whose registry engine model is Allison 250-C20 series. 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

20012026
NTSB investigations: Allison 250-C20 series, KY per year, 2001–2026: 6 cases
20011
20061
20132
20171
20181

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.\"eventStateOrRegion\" = 'KY' AND c.\"eventCountry\" = 'USA'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03020'))
  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 WPR18LA164Accident · Minor injuriesClass 3 · LimitedFinal reportBell 206 · Sanders, KYA partial loss of engine power for undetermined reasons, and a loss of main rotor rpm during the subsequent autorotation, which resulted in a hard landing.Jun 5, 2018 · N518Z · Substantial damageNTSB GAA17CA402Accident · No injuriesData collectionFinal reportBell 206 · Uniontown, KYThe pilot's failure to maintain adequate separation from power lines, which resulted in a loss of helicopter control.Jun 30, 2017 · N60KH · Substantial damageNTSB ERA13TA341Accident · Serious injuriesFinal reportMcdonnell Douglas Helicopter 369E · Jackson, KYThe helicopter pilot's inadvertent collision with an unmarked and uncharted utility wire of which he was unaware.Jul 29, 2013 · N1608D · DestroyedNTSB ERA13LA236Accident · No injuriesLimited investigationFinal reportBell 206B · Hartford, KYThe pilot’s failure to avoid a powerline that crossed a field that he was spraying. Contributing to the collision was the company’s failure to specifically mention that flight hazards be identified during a pre-work conference.May 10, 2013 · N94PH · Substantial damageNTSB NYC06TA190Accident · Minor injuriesFinal reportMD Helicopter 500N · Louisville, KYThe pilot's failure to maintain control of the helicopter and the flight instructor's inadequate supervision, which resulted in a hard landing and subsequent rollover.Aug 2, 2006 · N520AP · Substantial damageNTSB IAD01TA051Accident · Minor injuriesFinal reportHughes 369D · Taylorsville, KYthe flight instructor's inadequate aircraft control during a practice autorotation which resulted in a hard landing.Apr 29, 2001 · N50AP · Substantial damage