NTSB investigations: Lycoming IO-360-A1B6D, CA

5 cases on aircraft whose registry engine model is Lycoming IO-360-A1B6D, where the first occurrence was “Loss of engine power(total) - mech failure/malf”. 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

19862026
NTSB investigations: Lycoming IO-360-A1B6D, CA per year, 1986–2026: 5 cases
19861
19891
19961
20072

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 ('41593')
      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\" = 351))
  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 SEA07LA172Accident · Minor injuriesLimited investigationFinal reportCessna 177RG · Oceanside, CAThe improper installation of the propeller governor (gasket) by maintenance personnel, which resulted in a oil exhaustion induced total loss of engine power. Contributing to the accident was the lack of suitable terrain for the forced landing.Jun 19, 2007 · N2144Q · Substantial damageNTSB LAX07CA146Accident · Minor injuriesData collectionFinal reportCessna 177RG · Perris, CAa loss of engine power while in cruise flight due to an improperly installed magneto housing by the owner/pilot.Apr 30, 2007 · N177R · Substantial damageNTSB LAX96LA270Accident · No injuriesLimited investigationFinal reportCessna 177RG · Folsom, CAAn oil starvation failure of the engine due to a mechanic's failure to put the proper gasket stack on when the propeller governor was replaced. The mechanic's omission was due to the airframe manufacturer's failure to ensure that the service and parts manuals…Jul 13, 1996 · N52185 · Substantial damageNTSB LAX90LA035Accident · Serious injuriesLimited investigationFinal reportCessna 177RG · Van Nuys, CAThe incorrect installation of the engine cowl and baffle seals during the installation of the engine following an overhaul.Nov 17, 1989 · N2069Q · Substantial damageNTSB LAX86LA199Accident · No injuriesLimited investigationFinal reportCessna 177RG · Placerville, CAWhile enroute to san francisco, CA the engine began to overspeed & the prop gov control was not effective in arresting/controlling the overspeed condition. Shortly thereafter the engine oil pressure depleted to zero. The pilot elected to land in the ice house…Apr 29, 1986 · N34020 · Destroyed