NTSB investigations: Lycoming HIO-360 series, CO

14 cases on aircraft whose registry engine model is Lycoming HIO-360 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

19912026
NTSB investigations: Lycoming HIO-360 series, CO per year, 1991–2026: 14 cases
19911
19931
19981
20001
20023
20031
20041
20053
20121
20241

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\" = 'CO' 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 ('41524'))
  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 CEN25LA003Accident · Minor injuriesClass 3 · LimitedFinal reportSchweizer 269C · Montrose, COA loss of engine power during a demonstrated autorotation due to an improperly adjusted air-fuel mixture or idle setting. Contributing to the accident was the pilot’s failure to perform the required idle check during previous flights in higher elevation areas.Oct 3, 2024 · N656RB · Substantial damageNTSB CEN12LA343Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Denver, COThe inadequately overhauled landing gear dampers that allowed initiation of a ground resonance event from which the pilot was unable to recover. Contributing to the accident was the overhaul facility's failure to identify the overcharged dampers and a lack of…Jun 2, 2012 · N2196F · Substantial damageNTSB DEN05FA080Accident · Serious injuriesField investigationFinal reportSchweizer 269C · Pueblo, COthe flight instructor's failure to maintain control of the helicopter during the attempted autorotation after the loss of engine power for reasons undetermined. Contributing factors include the flight instructor's improper preflight planning, the high density…Jun 15, 2005 · N311CP · DestroyedNTSB DEN05CA079Accident · No injuriesData collectionFinal reportSchweizer 269C · Pueblo, COthe student pilot's failure to maintain control of the helicopter during the landing. Contributing to the accident was the flight instructor's inadequate supervision of the student pilot.May 19, 2005 · N958CP · Substantial damageNTSB DEN05LA068Accident · No injuriesLimited investigationFinal reportEnstrom F-28C · Morrison, COthe pilot's failure to maintain rotor RPM during the approach which resulted in a landing short of the helipad.Apr 13, 2005 · N5690K · Substantial damageNTSB DEN04CA092Accident · No injuriesData collectionFinal reportSchweizer 269C · Englewood, COthe settling with power situation encountered by the pilot. Contributing to the accident was the high density altitude.Jun 13, 2004 · N2062N · Substantial damageNTSB DEN03FA090Accident · 1 fatalField investigationFinal reportHughes 269C · Watkins, COfailure of both pilots to initiate a timely recovery from a practice autorotation. A contributing factor was the instructor's inadequate supervision of the pilot receiving instruction.May 28, 2003 · N9643F · DestroyedNTSB DEN03LA018Accident · Minor injuriesLimited investigationFinal reportEnstrom F-28C · Morrison, COthe pilot not maintaining clearance from the telephone lines during landing. Factors contributing to the accident were the pilot not being able to see the telephone lines, the low altitude, and the dark night.Nov 23, 2002 · N552CS · Substantial damageNTSB DEN02LA098Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Broomfield, COmaintenance personnel's failure to secure the landing skid oleo strut bolt during the last 50-hour inspection, causing the left rear skid to collapse and the tail rotor to strike the ground.Aug 20, 2002 · N7508L · Substantial damageNTSB FTW02LA104Accident · No injuriesLimited investigationFinal reportHughes 269A-1 · Fort Collins, COthe flight instructor's failure to maintain control of the helicopter while hovering. Contributing factors were the tailwind and gusty wind conditions.Mar 27, 2002 · N8942F · Substantial damageNTSB DEN00LA083Accident · No injuriesLimited investigationFinal reportHughes 269C · Loveland, COThe pilot misjudged the run on landing during a full autorotation. Factors were a total loss of power for unknown reasons and soft terrain.May 3, 2000 · N1098B · Substantial damageNTSB FTW98LA129Accident · No injuriesLimited investigationFinal reportEnstrom F-28C-2 · Broomfield, COwater contamination in the fuel, which resulted in loss of engine power and a forced (autorotative) landing. Factors relating to the accident were: darkness; and a high obstruction in the emergency landing area.Feb 15, 1998 · N5693M · Substantial damageNTSB DEN93LA070Accident · No injuriesLimited investigationFinal reportEnstrom F-28C · Boulder, COA failure by the pilot flying to adequately compensate for wind conditions which led to a loss of tail rotor control. A factor was: inadequate supervision by the pilot in command.Jun 27, 1993 · N625H · Substantial damageNTSB DEN92LA001Accident · No injuriesLimited investigationFinal reportEnstrom F-28C · Evergreen, COIn flight encounter with a sudden downdraft. A factor was: the pilot's lack of total experience in aircraft type.Oct 2, 1991 · N552H · Substantial damage