NTSB investigations: Lycoming IO-540 series, MA

10 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.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19832026

NTSB investigations: Lycoming IO-540 series, MA per year, 1983–2026: 10 cases
1983	1
1999	1
2000	2
2002	1
2003	2
2004	2
2019	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" = 'MA' 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 ('41530', '41585')) 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\" = 'MA' 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 ('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.

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" = 'MA' 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 ('41530', '41585'))
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 GAA19CA195Accident · No injuriesData collectionFinal reportRobinson R44 · Taunton, MAThe pilot's improper decision to land with a gusting left quartering tailwind and his subsequent attempt to reposition the helicopter and take off, which resulted in a dynamic rollover.Apr 2, 2019 · N344R · Substantial damage NTSB NYC04CA166Accident · No injuriesData collectionFinal reportRobinson R-44 II · Beverly, MAThe pilot's inadequate visual lookout, which resulted in a collision with transmission wires.Jul 11, 2004 · N277MC · Substantial damage NTSB NYC04FA136Accident · 2 fatalField investigationFinal reportPiper PA-32-300 · Leominster, MAThe pilot's failure to follow instrument flight procedures resulting in a collision with trees. A factor related to the accident was the low cloud ceiling, and dark night.Jun 2, 2004 · N21072 · Destroyed NTSB NYC03FA205Accident · 2 fatalField investigationFinal reportCessna 182T · Concord, MAThe pilot's failure to maintain aircraft control due to spatial disorientation. A factor was the low ceilings.Sep 27, 2003 · N963LP · Destroyed NTSB NYC03LA166Accident · No injuriesLimited investigationFinal reportPiper PA-32R-301 · Newburyport, MAThe pilot's inadequate compensation for the wind conditions and his inadequate flare.Jul 25, 2003 · N8146Y · Substantial damage NTSB NYC02LA167Accident · No injuriesLimited investigationFinal reportPiper PA32-300 · Chatham, MAThe pilot's improper in-flight decision to continue the landing after losing visual contact with the runway, which resulted in his failure to obtain the proper touchdown point, and the subsequent overrun. Factors in this accident were the clouds and low…Aug 16, 2002 · N20787 · Substantial damage NTSB NYC00LA252Accident · No injuriesLimited investigationFinal reportPiper PA-60-601P · Northampton, MAThe pilot's improper preflight planning which resulted in an attempted takeoff from a taxiway. A factor in the accident was the fog.Sep 7, 2000 · N601WK · Substantial damage NTSB IAD00LA060Accident · No injuriesLimited investigationFinal reportPiper PA-32-300 · Fitchburg, MApilot's inadequate compensation for the crosswind. A factor was the crosswind.Jul 8, 2000 · N21072 · Substantial damage NTSB NYC99MA178Accident · 3 fatalMajor investigationFinal reportPiper PA-32R-301 · Vineyard Haven, MAThe pilot's failure to maintain control of the airplane during a descent over water at night, which was a result of spatial disorientation. Factors in the accident were haze, and the dark night.Jul 17, 1999 · N9253N · Destroyed NTSB NYC83FA254Accident · 3 fatalField investigationFinal reportBellanca 17-31ATC · Provincetown, MAThe acft crashed in cape cod bay during a night x-country flt. Two sections of wooden wing identified as from the same make and model as the missing acft were recovered from the bay during the 3 days following the flt of the acft. Other identified parts of…Sep 11, 1983 · N28077 · Destroyed