NTSB investigations: Lycoming AEIO-540 series

10 cases on aircraft whose registry engine model is Lycoming AEIO-540 series, 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

19942026
NTSB investigations: Lycoming AEIO-540 series per year, 1994–2026: 10 cases
19942
19952
19961
19971
20041
20051
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.\"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\" = 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 LAX06LA190Accident · No injuriesLimited investigationFinal reportAviat Pitts S-2B · Antioch, CAThe loss of oil pressure due to metal pieces from the number 5 piston skirt in the oil system, which prevented the oil valve top ball valve from seating. The muddy terrain was a factor.Jun 3, 2006 · N117PS · Substantial damageNTSB DFW06LA094Accident · No injuriesLimited investigationFinal reportAviation Specialties Unlimited Challenger II · Coushatta, LAThe loss of control due to premature failure of the elevator's push-pull tube rod-end bearing.Apr 4, 2006 · N260HP · DestroyedNTSB DFW05FA242Accident · 1 fatalField investigationFinal reportAkro Tech Aviation Inc. Giles G-300 · Yukon, OKThe catastrophic separation of the canopy as result of the failure of the forward canopy hinge while performing aerobatics and the subsequent incapacitation of the pilot.Sep 18, 2005 · N300NW · DestroyedNTSB NYC04LA140Accident · No injuriesLimited investigationFinal reportAviat Pitts S2B · Hamilton, OHThe pilot's failure to maintain directional control after experiencing a brake system malfunction during landing. Factors related to the accident were the malfunction of a landing gear brake as reported by the pilot, and the crosswind conditions.Jun 13, 2004 · N963CB · Substantial damageNTSB ATL98LA022Accident · No injuriesLimited investigationFinal reportChristen Industries S-2B · Fort Lauderdale, FLThe undetermined malfunction of the right brake and the pilot's failure to maintain directional control during the landing rollout. A factor was the quartering tailwind.Nov 23, 1997 · N317JK · Substantial damageNTSB LAX96LA232Accident · Minor injuriesLimited investigationFinal reportMoore Goshawk 350 · Livermore, CAan overstress failure of the left rudder cable.Jun 17, 1996 · N345RM · DestroyedNTSB CHI95LA288Accident · Serious injuriesLimited investigationFinal reportde Havilland DHC-1 · Hammond, WIan overload failure of the right horizontal support tube assembly which the pilot/owner had modified to be adjustable. A factor in the accident was the corn.Aug 19, 1995 · N320WM · DestroyedNTSB MIA95LA129Accident · No injuriesLimited investigationFinal reportPitts S-2B · Naples, FLThe failure of the tail wheel landing gear system for undetermined reasons. This resulted in an on-ground loss of control on landing rollout, ground loop, and collapse of the right main landing gear.Apr 26, 1995 · N711BT · Substantial damageNTSB MIA94LA171Accident · No injuriesLimited investigationFinal reportPitts S2B · Fort Lauderdale, FLThe poor welding quality of the manufacturer, resulting in the fatigue failure of the aileron attachment bracket.Jul 4, 1994 · N61PS · Substantial damageNTSB MIA94LA154Accident · No injuriesLimited investigationFinal reportPitts S2B · Keystone Height, FLThe pilot-in-command's exceeding of the design limitations of the airplane.May 26, 1994 · N61PS · Substantial damage