NTSB investigations: Lycoming AEIO-540 series

12 cases on aircraft whose registry engine model is Lycoming AEIO-540 series, where the first occurrence was “Loss of control - in flight”. 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

19932026
NTSB investigations: Lycoming AEIO-540 series per year, 1993–2026: 12 cases
19931
19952
20001
20011
20034
20063

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\" = 250))
  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 DEN07FA003Accident · 1 fatalField investigationFinal reportExtra Flugzeugbau EA 300/L · Tucumcari, NMThe pilot's failure to maintain aircraft control during aerobatic flight, resulting in an inadvertent accelerated stall. Contributing factors include the low altitude for recovery from the loop and the high density altitude.Oct 4, 2006 · N300BB · Substantial damageNTSB LAX06LA262Accident · Serious injuriesLimited investigationFinal reportExtra Flugzeugbau EA-300 · Mojave, CAthe pilot's failure to maintain an adequate airspeed while performing low-level aerobatics that resulted in an inadvertent accelerated stall and in-flight collision with terrain.Aug 16, 2006 · N12DW · Substantial damageNTSB ANC06LA026Accident · 1 fatalLimited investigationFinal reportExtra Flugzeugbau 300S · Greenfield, CAThe pilot's failure to maintain adequate airspeed during the base leg to final approach phase of a VFR landing pattern, which resulted in an inadvertent stall and an uncontrolled descent. A factor contributing to the accident was the inadvertent stall/mush.Mar 21, 2006 · N124X · Substantial damageNTSB NYC04LA006Accident · 1 fatalLimited investigationFinal reportExtra Flugzeugbau EA-300L · Queen Anne, MDThe pilot's performance of aerobatic maneuvers with positive and negative Gs, which resulted in a G induced loss of control, and uncontrolled impact with the ground.Oct 12, 2003 · N18NL · DestroyedNTSB NYC04LA004Accident · 1 fatalLimited investigationFinal reportPfeifler Edge-540 · Warrenton, VAThe pilot's failure to maintain aircraft control while performing aerobatic maneuvers.Oct 7, 2003 · N540SH · DestroyedNTSB NYC03FA088Accident · 2 fatalField investigationFinal reportAviat Pitts S-2B · Newport, PAThe pilot's improper decision to perform aerobatics at a low altitude, which inhibited his ability to recover from an encountered flat spin. A factor related to the accident was the aft center of gravity, which was beyond the operational limit for the…Apr 24, 2003 · N6085U · Substantial damageNTSB LAX03LA081Accident · Serious injuriesLimited investigationFinal reportPitts S-2B · Long Beach, CAThe pilot's excessive pull up, which resulted in a failure to obtain/maintain flying speed and a subsequent stall/mush.Feb 1, 2003 · N300PS · Substantial damageNTSB NYC01FA212Accident · 1 fatalField investigationFinal reportPitts S-2B · Shirley, NYThe pilot under instruction's failure to maintain adequate airspeed, and the flight instructor's inadequate remedial action during a simulated engine-out approach, which resulted in an inadvertent stall, and subsequent ground impact.Aug 21, 2001 · N225SD · Substantial damageNTSB MIA01FA041Accident · 2 fatalField investigationFinal reportChristen Industries Pitts S-2B · Weston, FLAn inflight loss of control by both pilots while maneuvering, which resulted in an inverted flat spin, an uncontrolled descent, and an impact with terrain/water. A factor contributing to the accident was the failure of both pilots to ensure that the…Dec 14, 2000 · N260DB · Substantial damageNTSB ATL96LA025Accident · 1 fatalLimited investigationFinal reportMoravan Zlin Z50 LA · Springfield, TNthe pilot's failure to maintain control of the aircraft.Dec 20, 1995 · N6660B · DestroyedNTSB FTW95LA384Accident · 1 fatalLimited investigationFinal reportJohnson Rebel 300 · Keenesburg, COInadvertent stall during approach. A factor was the pilot's lack of total experience in make and model.Sep 9, 1995 · N36DJ · DestroyedNTSB BFO93LA045Accident · Serious injuriesLimited investigationFinal reportPitts S-2B · Hillsboro, MDFailure of the pilot to maintain airspeed, while performing aerobatic maneuvers, which resulted in an inadvertent flat spin and an uncontrolled descent into terrain.Mar 7, 1993 · N12QW · Destroyed