NTSB investigations: Lycoming O-360-A4M, UT

5 cases on aircraft whose registry engine model is Lycoming O-360-A4M. 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

19762026

NTSB investigations: Lycoming O-360-A4M, UT per year, 1976–2026: 5 cases
1976	1
2007	1
2008	1
2016	1
2017	1

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."eventStateOrRegion" = 'UT' 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 ('42276')) 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.\"eventStateOrRegion\" = 'UT' 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 ('42276'))
  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."eventStateOrRegion" = 'UT' 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 ('42276'))
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 WPR18LA009Accident · No injuriesLimited investigationFinal reportBarber Warren D Turbine Cubs P A 18 · Skull Valley, UTThe activation of the wheel brakes during landing, which resulted in a nose-over. The reason for the wheel brake activation could not be determined.Oct 15, 2017 · N181TJ · Substantial damage NTSB WPR16FA144Accident · 1 fatalField investigationFinal reportDiamond Aircraft Ind DA40 F · Logan, UTThe pilot's exceedance of the airplane's critical angle of attack while maneuvering in turbulence and gusty wind conditions, which resulted in an aerodynamic stall/spin.Jul 18, 2016 · N419FP · Destroyed NTSB SEA08CA205Accident · No injuriesData collectionFinal reportDiamond DA40F · Provo, UTAn in-flight collision with a bird.Sep 20, 2008 · N420FP · Substantial damage NTSB LAX07CA169Accident · No injuriesData collectionFinal reportCessna 172M · St. George, UTthe pilot's inadequate compensation for a gusting crosswind and his failure to maintain directional control.May 12, 2007 · N5285H · Substantial damage NTSB DEN76FTM43Accident · No injuriesClosedCessna 172M · Cedar City, UTAug 7, 1976 · N5285H · Substantial damage