NTSB investigations: Lycoming AEIO-540 series

6 cases on aircraft whose registry engine model is Lycoming AEIO-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

19852026
NTSB investigations: Lycoming AEIO-540 series per year, 1985–2026: 6 cases
19851
19911
19921
20032
20041

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 ('41568')
      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 SEA04FA127Accident · Serious injuriesField investigationFinal reportExtra Flugzeugrau EA 300/L · Boise, IDThe failure of the pilot to maintain clearance with terrain during descent while conducting an aerobatic maneuver. Low altitude flight was a factor.Jul 9, 2004 · N609JW · DestroyedNTSB CHI04LA007Accident · 1 fatalLimited investigationFinal reportAviat Pitts S-2B · Cromwell, MNThe altitude/clearance not maintained by the pilot while performing aerobatic maneuvers. Contributing factors were the planning/decision to perform an aerobatic maneuver at a low altitude.Oct 10, 2003 · N68PS · DestroyedNTSB LAX03CA287Accident · Minor injuriesData collectionFinal reportAviat Pitts S-2C · Mountain View, CAthe pilot's failure to maintain an adequate clearance with the runway during a low altitude aerobatic maneuver.Sep 13, 2003 · N57BC · Substantial damageNTSB CHI92LA190Accident · No injuriesLimited investigationFinal reportPitts S2B · Aurora, NEThe pilot-in-command's restricted visual lookout from smoke entering the cockpit. Factors were smoke in the cockpit which resulted in the pilot becoming disoriented.Jun 27, 1992 · N92BT · DestroyedNTSB SEA91FA203Accident · 1 fatalField investigationFinal reportChristen Industries Pitts S-2B · Scappoose, ORThe pilot's misjudgment of altitude, while performing an aerobatic maneuver, and his failure to maintain ground clearance.Aug 10, 1991 · N77PW · DestroyedNTSB CHI85LA179Accident · No injuriesLimited investigationFinal reportPitts Pitts S2B · Indianapolis, INThe acft performed 4 aileron rolls during which some alt was lost with each roll. During the final roll a wing made ground contact and folded as the acft slid to a stop.Apr 28, 1985 · N260JH · Substantial damage