Final NTSB investigations: Lycoming IO-540 series, 1981

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.

Cases per year

19642026
Final NTSB investigations: Lycoming IO-540 series, 1981 per year, 1964–2026: 1,015 cases
19641
19652
19661
19674
19681
19692
19703
19711
19723
19731
19741
19751
19764
19773
19786
19797
198018
198110
198216
198317
198430
198520
198617
198715
198812
198911
199014
199114
199218
199322
199413
199513
199616
199716
199816
199928
200026
200132
200234
200328
200433
200529
200629
200734
200827
200919
201028
201122
201226
201321
201426
201518
201617
201728
201826
201916
202015
202127
202222
202321
202413
202515
20266

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\") = 1981
    AND c.\"completionStatus\" = 'Completed'
    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.