Fatal NTSB investigations: Lycoming IO-540 series, WI

6 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

20002026
Fatal NTSB investigations: Lycoming IO-540 series, WI per year, 2000–2026: 6 cases
20001
20011
20021
20082
20171

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\" = 'WI' AND c.\"eventCountry\" = 'USA'
    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 CEN17FA287Accident · 2 fatalField investigationFinal reportAerofab Lake LA 4 250 · Oshkosh, WIThe pilot's failure to properly configure the airplane for takeoff and his decision to takeoff with a tailwind in unfavorable water conditions, which resulted in the airplane entering an aerodynamic stall and the pilot losing control.Jul 28, 2017 · N1400P · Substantial damageNTSB CHI08FA293Accident · 2 fatalField investigationFinal reportRobinson R44 II · Kenosha, WIThe pilots failure to maintain clearance from terrain resulting in an in-flight collision with a house. Contributing to the accident was the night instrument meteorological conditions (IMC) and the pilot's lack of experience of flying in IMC.Sep 21, 2008 · N999ZD · DestroyedNTSB CHI08LA272Accident · 1 fatalLimited investigationFinal reportSocata TB-20 Trinidad · Cassville, WIThe left seat pilot's failure to maintain control of the airplane during a go-around and the inadvertent in-flight opening of the cabin door for undetermined reasons. Contributing to the accident was the distraction of the door opening.Sep 3, 2008 · N597TB · Substantial damageNTSB CHI02FA120Accident · 1 fatalField investigationFinal reportCessna 182S · Sheboygan, WIThe pilot failed to maintain control of the airplane during the go-around for undetermined reasons.May 3, 2002 · N293MA · DestroyedNTSB CHI01FA244Accident · 1 fatalField investigationFinal reportSchuchart Stoddard HamiltonSH3 · Oshkosh, WIThe inadvertent stall/spin by the pilot.Jul 26, 2001 · N325HP · DestroyedNTSB CHI00FA284Accident · 2 fatalField investigationFinal reportBeech K35 · Manitowish Watr, WIthe pilot not maintaining altitude/clearance from the trees during an approach on a dark, low overcast night, the pilot's improper use of an IFR procedure without clearance, and the pilot's improper in-flight decision to attempt an IFR approach without…Sep 2, 2000 · N3076C · Destroyed