NTSB investigations: Lycoming 0-320 series, MD

7 cases on aircraft whose registry engine model is Lycoming 0-320 series, where the first occurrence was “Hard landing”. 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 0-320 series, MD per year, 1983–2026: 7 cases
1983	1
1997	1
1998	1
2002	1
2003	1
2004	1
2006	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" = 'MD' 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 ('41508') 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" = 200)) 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\" = 'MD' 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 ('41508')
      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\" = 200))
  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" = 'MD' 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 ('41508')
    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" = 200))
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 NYC06CA213Accident · No injuriesData collectionFinal reportRobinson R22 Beta · Frederick, MDThe flight instructor's delayed remedial action during a hovering autorotation, which resulted in a hard landing and inadvertent dynamic rollover.Aug 28, 2006 · N2649D · Substantial damage NTSB NYC04CA073Accident · No injuriesData collectionFinal reportCessna 172N · Easton, MDThe student pilot's improper flare, which resulted in a hard landing.Feb 12, 2004 · N734AT · Substantial damage NTSB NYC03LA118Accident · No injuriesLimited investigationFinal reportAmerican Champion 7GCAA · Frederick, MDThe certified flight instructor's improper flare and his delayed remedial action. The pilot's failure to maintain directional control is a contributing factor.Jun 3, 2003 · N77GA · Substantial damage NTSB NYC02LA191Accident · Minor injuriesLimited investigationFinal reportRobinson R-22B · Frederick, MDThe student pilot's failure to maintain adequate rotor rpm, and the flight instructor's delayed remedial action. A factor was the manufacturer's inadequate written guidance regarding simulated engine failures during takeoff.Sep 16, 2002 · N2549R · Substantial damage NTSB IAD98LA045Accident · No injuriesLimited investigationFinal reportCessna 172N · Stevensville, MDthe pilot's improper flare, improper recover from a bounced landing, and failure to maintain directional control.Apr 12, 1998 · N734MN · Substantial damage NTSB NYC98LA026Accident · No injuriesLimited investigationFinal reportCessna 172M · Salisbury, MDThe student pilot's improper flare which resulted in a hard landing.Oct 30, 1997 · N1487V · Substantial damage NTSB DCA83IA027Incident · No injuriesIncident investigationFinal reportGrumman AA-5 · Clinton, MDThe student pilot ballooned during the flare, then landed hared on runway. The nosegear failed and the acft slid down the runway.Jun 2, 1983 · N9542L · Minor damage