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NTSB investigations: Lycoming HO-360 series, CA

35 cases on aircraft whose registry engine model is Lycoming HO-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

19642026

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" = 'CA' 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 ('41513')) 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\" = 'CA' 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 ('41513'))
  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" = 'CA' 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 ('41513'))
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 WPR26LA009Accident · No injuriesClass 4 · LimitedFinal reportMooney M20C · Watsonville, CAThe pilot’s decision to program avionics during taxi, resulting in an inadvertent throttle input and collision with a hangar.Oct 7, 2025 · N6814N · Substantial damage NTSB LAX08LA213Accident · 2 fatalLimited investigationFinal reportSchweizer 269 C-1 · Sunol, CAThe pilots' failure to maintain adequate clearance from transmission wires during cruise flight. Contributing to the accident were the dark night and low fog.Jul 4, 2008 · N2011A · Destroyed NTSB LAX06LA123Accident · 1 fatalLimited investigationFinal reportSchweizer 269C-1 · Valencia, CAThe certified flight instructor's failure to maintain an adequate clearance from objects.Feb 25, 2006 · N61466 · Destroyed NTSB LAX04LA331Accident · No injuriesLimited investigationFinal reportSchweizer 269C-1 · Burbank, CAthe failure of maintenance personnel to correctly service the forward landing gear strut dampers in accordance with the manufacturer's maintenance instructions.Sep 25, 2004 · N61413 · Substantial damage NTSB LAX04CA233Accident · No injuriesData collectionFinal reportSchweizer 269C-1 · Brentwood, CAthe student's improper use of the cyclic control, the flight instructor's inadequate supervision, and his delayed remedial action. A factor in the accident was the CFI's diverted attention.Jun 5, 2004 · N9421K · Substantial damage NTSB LAX04LA197Accident · No injuriesLimited investigationFinal reportSchweizer 269C-1 · Van Nuys, CAthe failure of maintenance personnel to ensure the proper charge of the aft landing gear dampers in accordance with the manufacturer's recommendations.Apr 27, 2004 · N61415 · Substantial damage NTSB LAX03LA010Accident · No injuriesLimited investigationFinal reportSchweizer 269C · Hayward, CAThe flight instructor's inadequate supervision and delayed remedial action, which resulted in a hard landing.Oct 18, 2002 · N61416 · Substantial damage NTSB LAX02LA228Accident · No injuriesLimited investigationFinal reportSchweizer 269C-1 · Concord, CAThe main rotor mast support tube failure as a result of fatigue.Jul 15, 2002 · N20256 · Substantial damage NTSB LAX01LA219Accident · Serious injuriesLimited investigationFinal reportHughes 269A · Paso Robles, CAthe pilot's failure to maintain rotor rpm during a practice autorotational landing, which resulted in a hard landing.Jun 25, 2001 · N8724F · Substantial damage NTSB LAX00LA216Accident · No injuriesLimited investigationFinal reportSchweizer 269C-1 · Brentwood, CAThe student's improper execution of a quick-stop maneuver in that he misjudged his altitude and failed to terminate at a stationary hover prior to descending to a low hover. This resulted in an excessive engine power requirement and the student improperly…Jun 5, 2000 · N2029H · Substantial damage NTSB LAX99LA166Accident · No injuriesLimited investigationFinal reportSchweizer 269C-1 · Concord, CAThe inadequate supervision of the student pilot by the flight instructor during the practice autorotation, which resulted in a delayed flare and the tail rotor contacting the ground. A factor was a misinterpreted communication between the flight instructor…Apr 30, 1999 · N6148V · Substantial damage NTSB LAX91LA257Accident · 1 fatalLimited investigationFinal reportSchweizer 269B · Cottonwood, CAThe pilot's inadequate visual lookout. The transmission wire was a factor in the accident.Jun 9, 1991 · N103AB · Destroyed NTSB LAX90LA187Accident · No injuriesLimited investigationFinal reportHughes 269C · Rialto, CAImproper maintenance procedure by maintenance personnel to troubleshoot a reported deficiency and the pilot's decision to demonstrate the vibration, exceeding the design limits of the helicopter and inducing ground resonance. Contributing to the accident was…May 23, 1990 · N7441F · Substantial damage NTSB OAK76FVM01Accident · No injuriesClosedEnstrom F28A · San Francisco, CAJul 5, 1975 · N4893 · Substantial damage NTSB LAX74FUG09Accident · 1 fatalClosedPitts SPL S-1C · Highgrove, CASep 8, 1974 · N7021 · Substantial damage NTSB LAX74FUQ27Accident · No injuriesClosedPitts Spcl S1C · Burbank, CAJan 5, 1974 · N1XX · 2 aircraft · Minor damage NTSB LAX71FUG94Accident · No injuriesClosedHughes 269A · Ontario, CAJun 20, 1971 · N8900F · Substantial damage NTSB LAX70FUG31Accident · No injuriesClosedHughes 269A · Arlington, CAMay 5, 1970 · N8709F · Substantial damage NTSB LAX69F0137Accident · No injuriesClosedHughes 269A · Chula Vista, CAAug 28, 1968 · N8709F · Substantial damage NTSB LAX69F0106Accident · Minor injuriesClosedHughes 269A · Industry, CAAug 28, 1968 · N8927F · Substantial damage NTSB OAK69D0126Accident · No injuriesClosedHughes 269A · Panoche, CAAug 8, 1968 · N8751F · Substantial damage NTSB LAX69D0042Accident · No injuriesClosedHughes 269A · Culver City, CAJul 21, 1968 · N8923F · Substantial damage NTSB LAX68F0374Accident · No injuriesClosedHughes 269A · Culver City, CAApr 4, 1968 · N8923F · Substantial damage NTSB LAX68A0072Accident · Minor injuriesClosedHughes 269A · Compton, CAFeb 4, 1968 · N8879F · Substantial damage NTSB LAX68A0033Accident · No injuriesClosedHughes 269A · Santa Ana, CASep 17, 1967 · N8879F · Substantial damage NTSB LAX68A0028Accident · No injuriesClosedHughes 269A · Walker Basin, CASep 3, 1967 · N8900F · Substantial damage NTSB LAX67A0052Accident · Minor injuriesClosedHughes 269A · Van Nuys, CANov 21, 1966 · N8751F · Substantial damage NTSB LAX67A0030Accident · No injuriesClosedHughes 269A · Lakewood, CASep 3, 1966 · N8923F · Substantial damage NTSB OAK66F0240Accident · No injuriesClosedPiper PA-24 · Lone Pine, CAApr 3, 1966 · N5326P · Substantial damage NTSB LAX66A0046Accident · No injuriesClosedHughes 269A · Lompoc, CADec 4, 1965 · N8900F · Substantial damage NTSB LAX65A0076Accident · Serious injuriesClosedHughes 269A · San Diego, CAMar 30, 1965 · N8911F · Destroyed NTSB OAK65A0056Accident · No injuriesClosedHughes 269A · Novato, CAFeb 15, 1965 · N8878F · Substantial damage NTSB OAK65A0052Accident · No injuriesClosedHughes 269A · Visalia, CAJan 12, 1965 · N8888F · Substantial damage NTSB UNK65X0253Accident · Serious injuriesClosedHughes 269A · Huntngtn Bh, CAOct 12, 1964 · N8894F · Substantial damage NTSB UNK64X0488Accident · No injuriesClosedHughes 269A · San Jose, CAFeb 8, 1964 · N8879F · Substantial damage