Fatal NTSB investigations: Lycoming IO-540 series, 2004

10 cases on aircraft whose registry engine model is Lycoming IO-540 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

19712026
Fatal NTSB investigations: Lycoming IO-540 series, 2004 per year, 1971–2026: 276 cases
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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 year(c.\"eventDate\") = 2004
    AND c.\"highestInjuryLevel\" = 'Fatal'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41530', '41585'))
  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 SEA05WA031Accident · 1 fatalForeign investigationRobinson R-44 II · Fairmont Hot Sp, CanadaDec 28, 2004 · N313AL · DestroyedNTSB CHI05FA049Accident · 5 fatalField investigationFinal reportPiper PA-23-250 · Ironwood, MIFatigue fracture of an engine cylinder resulting in a loss of power on the left engine. Additional causes were the pilot's failure to maintain minimum control airspeed (Vmc), the resulting loss of aircraft control, and an inadvertent stall/spin. Contributing…Dec 28, 2004 · N5398M · Substantial damageNTSB MIA05FA024Accident · 2 fatalField investigationFinal reportSocata TB 20 · Key West, FLThe pilot's failure to maintain aircraft control as a result of spatial disorientation. A related factor was the dark, night conditions.Nov 5, 2004 · N1905S · DestroyedNTSB ATL04FA190Accident · 2 fatalField investigationFinal reportPiper PA-32R-301 · Euharlee, GAThe pilot's failure to maintain adequate control of the airplane, which resulted in the pilot exceeding the design limits of the airplane and subsequent in-flight separation.Sep 21, 2004 · N801SP · Substantial damageNTSB CHI04FA257Accident · 4 fatalField investigationFinal reportCessna 182T · Chesterfield, MOThe pilot not maintaining airspeed and the inadvertent stall he encountered during the go-around. A factor was the tree he impacted during his uncontrolled descent.Sep 13, 2004 · N843MC · DestroyedNTSB CHI04FA215Accident · 1 fatalField investigationFinal reportJorgensen Velocity XL-RG · Belvidere, KSThe non-instrument rated pilot's VFR flight into known instrument meteorological conditions and his failure to maintain aircraft control which resulted in an inverted flat spin, in-flight breakup, and explosion.Aug 7, 2004 · N190J · DestroyedNTSB LAX04LA253Accident · 1 fatalLimited investigationFinal reportAnderson Harmon Rocket II · Seal Beach, CAthe in-flight separation of the elevator, which resulted in a loss of airplane control and an uncontrolled descent. The underlying cause and mechanism of the elevator separation could not be determined.Jul 7, 2004 · N28BE · DestroyedNTSB NYC04FA136Accident · 2 fatalField investigationFinal reportPiper PA-32-300 · Leominster, MAThe pilot's failure to follow instrument flight procedures resulting in a collision with trees. A factor related to the accident was the low cloud ceiling, and dark night.Jun 2, 2004 · N21072 · DestroyedNTSB ATL04FA093Accident · 3 fatalField investigationFinal reportCessna 182S · North Augusta, SCThe pilot's failure to maintain control of the airplane due to spatial disorientation, which resulted in an uncontrolled descent and subsequent in-flight collision with trees and the ground.Apr 12, 2004 · N364ME · Substantial damageNTSB NYC04FA092Accident · 6 fatalField investigationFinal reportPiper PA-32R-301 · Harlan, KYThe pilot's improper decision to continue VFR flight into IMC conditions and his failure to maintain terrain clearance, which resulted in controlled flight into terrain. Factors were night, snow and a low ceiling.Mar 22, 2004 · N8173U · Destroyed