NTSB investigations: Lycoming IO-540 series, CA

5 cases on aircraft whose registry engine model is Lycoming IO-540 series, where the first occurrence was “In flight collision with terrain/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.

Cases per year

19822026
NTSB investigations: Lycoming IO-540 series, CA per year, 1982–2026: 5 cases
19821
19871
20021
20062

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 c.\"eventStateOrRegion\" = 'CA' 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')
      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\" = 230))
  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 LAX07LA054Accident · 2 fatalLimited investigationFinal reportJohn Lauer Harmon Rocket II · Bakersfield, CAThe pilot's failure to maintain terrain clearance during an aerobatic maneuver.Dec 9, 2006 · N604JL · DestroyedNTSB ANC06LA029Accident · 1 fatalLimited investigationFinal reportCooper Harmon Rocket ll · McKittrick, CAThe pilot's failure to maintain altitude/clearance while performing intentional low altitude aerobatic flight maneuvers. Factors associated with the accident are the low altitude aerobatic flight maneuvers.Mar 25, 2006 · N96CR · DestroyedNTSB LAX02FA073Accident · 1 fatalField investigationFinal reportPiper Aerostar 601P · Stonyford, CAthe pilot's failure to maintain terrain clearance during cruise flight, which resulted in the in-flight collision with mountainous terrain. Factors in the accident were the mountainous terrain and the dark night light conditions.Jan 31, 2002 · N3636M · DestroyedNTSB LAX87DVA03Accident · No injuriesFinal reportEagle DW-1 · Modesto, CADuring an aerial application flight, the pilot stated that just after the aircraft became airborne, it began to lose altitude and struck a canal bank at the end of the dirt strip. There were no reported mechanical failures or malfunctions. The acft was loaded…Feb 24, 1987 · N8808E · Substantial damageNTSB LAX82DA239Accident · No injuriesFinal reportCessna R182 · Fresno, CAWhen the landing gear was extended to demonstrate an approach-to-landing stall, there was no safe indication. The gear was recycled but the nose gear would not extend. All attempts to extend the nose gear, including the use of the emergency extension hand…Jun 30, 1982 · N7333X · Substantial damage