NTSB investigations: Lycoming HO-360 series

6 cases on aircraft whose registry engine model is Lycoming HO-360 series, where the first occurrence was “Hard landing”. 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

19872026

NTSB investigations: Lycoming HO-360 series per year, 1987–2026: 6 cases
1987	1
2001	1
2002	2
2003	1
2007	1

Where

Open the map

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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41513') 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" = 200)) 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41513')
      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\" = 200))
  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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41513')
    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" = 200))
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 CHI07CA299Accident · No injuriesData collectionFinal reportSchweizer 300 CBI · Minneapolis, MNThe dual student's improper flare during the simulated autorotation, and the flight instructor's delayed remedial action.Sep 13, 2007 · N269HB · Destroyed NTSB ATL04LA034Accident · No injuriesLimited investigationFinal reportHughes 269A · Birmingham, ALThe certified flight instructor's inadequate aircraft control and his improper landing flare resulting in a hard landing and roll over.Nov 7, 2003 · N1015T · 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 NYC02FA171Accident · Serious injuriesField investigationFinal reportSchweizer 269C-1 · Andover, NJThe flight instructor's delayed remedial action to correct the low rotor condition. A factor was the student pilot's improper use of the collective, which created the low rotor condition.Aug 21, 2002 · N6147L · 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 ATL87LA256Accident · No injuriesLimited investigationFinal reportHughes 269A · Morristown, TNOne CFI was demonstrating his procedures for autorotations with power recovery to his employer who was also a CFI. This was to insure standardization within the helicopter pilot school. The autorotation was entered from about 700 feet AGL to the departure…Sep 11, 1987 · N8709F · Substantial damage