Fatal, Ongoing NTSB investigations: Lycoming 0-235 series

3 cases on aircraft whose registry engine model is Lycoming 0-235 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.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

20252026

Fatal, Ongoing NTSB investigations: Lycoming 0-235 series per year, 2025–2026: 3 cases
2025	3

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."highestInjuryLevel" = 'Fatal' AND c."completionStatus" = 'Ongoing' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41505')) 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.\"highestInjuryLevel\" = 'Fatal'
    AND c.\"completionStatus\" = 'Ongoing'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41505'))
  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."highestInjuryLevel" = 'Fatal'
  AND c."completionStatus" = 'Ongoing'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41505'))
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 WPR26FA051Accident · 2 fatalClass 3 · FieldPreliminary reportAmerican AA-1A · High Rolls, NMOn November 26, 2025, about 1145 mountain standard time, an American Aviation AA-1A airplane, N9439L was destroyed when it was involved in an accident near Alamogordo, New Mexico. The pilot and passenger were fatally injured. The airplane was operated as a…Nov 26, 2025 · N9439L · Destroyed NTSB WPR25FA233Accident · 1 fatalClass 3 · FieldPreliminary reportCessna 152 · Hornell, NYOn August 1, 2025, about 1859 eastern daylight time, a Cessna 152, N6125B was destroyed when it was involved in an accident near Hornell, New York. The student pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations Part…Aug 1, 2025 · N6125B · Destroyed NTSB ERA25FA283Accident · 1 fatalClass 3 · FieldPreliminary reportPiper J5C · Rochester, NYOn August 1, 2025, about 1330 eastern daylight time, a Piper J5C, NC 28151, was substantially damaged when it was involved in an accident near Rochester, New York. The passenger was fatally injured, and the pilot was seriously injured. The airplane was…Aug 1, 2025 · N28151 · Substantial damage