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NTSB investigations: Lycoming HIO-360 series, WA

12 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.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19772026

Where

Latest cases

Query with SQL

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" = 'WA' 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

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\" = 'WA' 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.

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" = 'WA' 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

Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.

NTSB WPR11LA325Accident · Minor injuriesLimited investigationFinal reportHughes 269C · Wenatchee, WAThe pilot's failure to maintain control while hovering out of ground effect at low altitude, which resulted in the helicopter settling into trees.Jul 12, 2011 · N3623Z · Substantial damage NTSB SEA04LA128Accident · No injuriesLimited investigationFinal reportHughes 269C · Arlington, WAA significant power loss for undetermined reasons while in cruise flight, leading to a full autorotational landing. Factors include no suitable terrain in the area, and soft swampy terrain at the point where the pilot found it necessary to perform the forced…Jul 10, 2004 · N56PH · Substantial damage NTSB SEA03LA151Accident · No injuriesLimited investigationFinal reportHughes 269C · Snohomish, WAThe dual students failure to maintain clearance from the terrain during the go-around from a simulated autorotational flare, and the instructor pilot's failure to take adequate remedial action to keep the dual student from allowing the aircraft to impact the…Jul 24, 2003 · N53KF · Substantial damage NTSB SEA02LA150Accident · No injuriesLimited investigationFinal reportHughes 269A · Covington, WAAircraft control not maintained while hovering.Aug 10, 2002 · N90271 · Substantial damage NTSB SEA00LA103Accident · No injuriesLimited investigationFinal reportEnstrom F-28C · Kennewick, WAThe pilot's exceedance of the helicopter's hovering capabilities in a downwind hover. Factors included tailwind conditions, the pilot's lack of experience in the type of operation being conducted, and trees in the area where the helicopter settled.Jun 8, 2000 · N80193 · Substantial damage NTSB SEA97FA003Accident · No injuriesField investigationFinal reportEnstrom F-28C · Spokane, WAa loss of engine power for undetermined reasons.Oct 5, 1996 · N574H · Substantial damage NTSB SEA93FA178Accident · No injuriesField investigationFinal reportEnstrom F-28C · Seattle, WAShorted magneto condensers. Factors include a hidden obstruction in the landing area, and a reduction in rotor RPM from attempting to avoid the obstruction.Aug 18, 1993 · N86198 · Substantial damage NTSB SEA90LA116Accident · No injuriesLimited investigationFinal reportEnstrom F28C · Camas, WAThe failure of a sprag clutch in the rotor-drive mechanism, at an altitude and position that precluded or limited the possibility of a successful outcome.Jun 7, 1990 · N51729 · Substantial damage NTSB SEA85LA079Accident · No injuriesLimited investigationFinal reportHughes 269C · Elma, WAJust prior to lift-off a vibration accompanied by lateral rocking occurred. Although the plt brought the power to idle. The helicopter had already started to come apart. During engine examination it was found that the ground resonance occurred due to under to…Mar 20, 1985 · N9592F · Substantial damage NTSB SEA84LA153Accident · Minor injuriesLimited investigationFinal reportHughes 269C · Mt. St. Helens, WAThis accident occurred at the 5500 ft level on Mt. St. Helens. Density alt at the time was 7500 ft. at aprx 40-50 ft aglengine and rotor RPM began to decay rapidly. The acft landed hard on a rock ledge with one skid partially off the ledge. As rotor RPM…Jul 2, 1984 · N58397 · Destroyed NTSB SEA81FYP28Accident · Minor injuriesClosedEnstrom F-28C · Rice, WAJul 21, 1981 · N5689M · Destroyed NTSB SEA77DYK20Accident · No injuriesClosedEnstrom F28C · Medford, WAJul 22, 1977 · N51727 · Substantial damage