Fatal NTSB investigations: Lycoming IO-540 series, 2011

8 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.

Cases per year

19712026
Fatal NTSB investigations: Lycoming IO-540 series, 2011 per year, 1971–2026: 276 cases
19711
19782
19792
19812
19822
19833
19843
19855
19865
19871
19883
19893
19902
19912
19925
19934
19945
19955
19961
19976
19984
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200110
200221
200312
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200611
200711
200813
20097
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20125
20134
20149
20155
20163
20177
20186
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20203
20213
20223
20237
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20263

Latest cases

Query with SQL
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 year(c.\"eventDate\") = 2011
    AND c.\"highestInjuryLevel\" = 'Fatal'
    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.

NTSB CEN12FA091Accident · 1 fatalField investigationFinal reportRobinson Helicopter R44 II · Hackensack, MNThe helicopter's sudden yaw and subsequent impact with the water for reasons that could not be determined during postaccident examination of the helicopter and its systems.Nov 25, 2011 · N821JV · Substantial damageNTSB ERA12FA012Accident · 3 fatalField investigationFinal reportPiper PA-32R-300 · Peru, WVThe non-instrument rated pilot's improper decision to continue visual flight into instrument meteorological conditions, which resulted in spatial disorientation and subsequent in-flight collision with mountainous terrain.Oct 3, 2011 · N115CL · Substantial damageNTSB WPR11FA474Accident · 1 fatalField investigationFinal reportPoe G L/Poe S Y 540 · Chualar, CAThe pilot’s incapacitation due either to g-induced loss of consciousness alone or in combination with a cardiac arrhythmia. Contributing to the accident was the pilot’s use of several medications.Sep 30, 2011 · N42GP · Substantial damageNTSB ERA11FA512Accident · 1 fatalField investigationFinal reportHeronimus Kevin A Glasair III · Falls of Rough, KYThe failure of the propeller power speed reduction unit, which resulted in a loss of engine power at low altitude.Sep 30, 2011 · N43KH · Substantial damageNTSB WPR11FA395Accident · 1 fatalField investigationFinal reportMaule M-7-235C · Brookings, ORThe pilot’s improper decision to continue flight under visual flight rules into instrument meteorological conditions, which resulted in a collision with trees while on approach for landing.Aug 21, 2011 · N199BF · Substantial damageNTSB ERA11FA412Accident · 2 fatalField investigationFinal reportCessna 182S · Erwin, NCThe pilot’s loss of control due to spatial disorientation while maneuvering in dark night conditions.Jul 21, 2011 · N23739 · Substantial damageNTSB CEN11LA399Accident · 1 fatalLimited investigationFinal reportPiper PA-36-300 · Highmore, SDThe pilot did not maintain control of the airplane while maneuvering at low altitude.Jun 17, 2011 · N57885 · Substantial damageNTSB ERA11FA272Accident · 1 fatalField investigationFinal reportRobinson Helicopter R44 II · Indiana, PAThe pilot's operation of the helicopter at a low-forward airspeed out of ground effect, which resulted in the helicopter’s loss of translational lift and tail rotor authority and the pilot’s subsequent loss of helicopter control.May 1, 2011 · N445AB · Substantial damage