NTSB investigations: Lycoming IGSO-540-B1A

5 cases on aircraft whose registry engine model is Lycoming IGSO-540-B1A, where the first occurrence was “Airframe/component/system failure/malfunction”. 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 IGSO-540-B1A per year, 1982–2026: 5 cases
19821
19891
19941
19951
19981

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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41535')
      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\" = 130))
  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 SEA98LA073Accident · No injuriesLimited investigationFinal reportAero Commander 500-A · Billings, MTFailure of the main landing gear strut outer-body to inner-body needle bearing from the lack of lubrication and the development of corrosion. An inadequate manufacturer's inspection program was a factor.May 9, 1998 · N9382R · Substantial damageNTSB CHI95LA287Accident · No injuriesLimited investigationFinal reportBeech 65-B80 · Anderson, INseizure of the landing gear wheel bearing and separation of the landing gear outer wheel-half and tire from the aircraft after which directional control of the aircraft by the pilot was not possible.Aug 20, 1995 · N8347N · Substantial damageNTSB MIA94LA149Accident · Serious injuriesLimited investigationFinal reportBeech 65 · Pensacola, FLImproper installation of nuts on the nosewheel (split rim) through-bolts by unknown personnel, which resulted in a subsequent failure (separation of the wheel halves).May 23, 1994 · N6166Y · Minor damageNTSB MKC90LA039Accident · No injuriesLimited investigationFinal reportBeech 80 · Cape Girardeau, MOAn inoperative landing gear extension system due to failure of an electric motor and a misplaced emergency crank handle.Dec 13, 1989 · N525GT · Substantial damageNTSB CHI82IA102Incident · No injuriesIncident investigationFinal reportBeech 65-88 · Kalamazo, MIPrior to landing the pilot could not extend the right main landing gear. He attempted to extend the gear by recycling the system and by using the manual extension, but to no avail. Subsequently, the aircraft was landed on a paved runway with the gear…Mar 26, 1982 · N20HR · Minor damage