NTSB investigations: Lycoming 0-235 series, OK

7 cases on aircraft whose registry engine model is Lycoming 0-235 series, where the first occurrence was “Loss of control - on ground/water”. 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

19832026

NTSB investigations: Lycoming 0-235 series, OK per year, 1983–2026: 7 cases
1983	1
1988	1
1995	1
1997	1
2005	2
2007	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" = 'OK' 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 ('41505') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 260)) 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\" = 'OK' 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 ('41505')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 260))
  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" = 'OK' 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 ('41505')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 260))
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 DFW08CA044Accident · No injuriesData collectionFinal reportCessna 152 · Madill, OKThe pilot failed to maintain directional control during landing roll. A contributing factor was the crosswind.Nov 30, 2007 · N6135M · Substantial damage NTSB DFW05CA154Accident · No injuriesData collectionFinal reportCessna 152 · Marietta, OKThe pilot's failure to maintain directional control while executing a soft field take off. A factor was the prevailing dark night conditions.Jun 11, 2005 · N47962 · Substantial damage NTSB DFW05CA101Accident · No injuriesData collectionFinal reportCessna 152 · Stillwater, OKThe student pilot's failure to maintain directional control during landing.Apr 8, 2005 · N68472 · Substantial damage NTSB FTW97LA152Accident · No injuriesLimited investigationFinal reportPiper PA-38-112 · Stillwater, OKthe pilot's inadequate compensation for the wind conditions, and his failure to maintain directional control, which resulted in a ground swerve and collapse of the nose gear. The crosswind was a related factor.Mar 29, 1997 · N194BA · Substantial damage NTSB FTW96LA036Accident · No injuriesLimited investigationFinal reportCessna 152 · Marietta, OKthe pilot's failure to maintain directional control. A factor was the wet grass runway.Nov 1, 1995 · N49131 · Substantial damage NTSB FTW88LA067Accident · No injuriesLimited investigationFinal reportPiper PA-38-112 · Washington, OKThe student pilot received dual instruction in crosswind takeoffs and landings after which the instructor pilot deplaned to observe the student. The student lost directional control on the first takeoff attempt and the aircraft collided with a ditch after…Feb 19, 1988 · N9331T · Substantial damage NTSB FTW83LA240Accident · No injuriesLimited investigationFinal reportCessna 152 · Woodward, OKAs the a/s increased drng tkof roll the acft started to skid to the rt. The student plt stated that with full l aileron and no rt rudder the acft continued to skid to the rt. He then atmptd to apply l rudder and abort the tkof by reducing pwr. The acft veered…May 16, 1983 · N65412 · Substantial damage