NTSB investigations: Hughes Helicopters HUGHES 369D, 1989
7 cases on aircraft the registry lists as Hughes Helicopters HUGHES 369D. 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
| 1977 | 3 |
|---|---|
| 1978 | 5 |
| 1979 | 10 |
| 1980 | 10 |
| 1981 | 14 |
| 1982 | 8 |
| 1983 | 6 |
| 1984 | 11 |
| 1985 | 7 |
| 1986 | 4 |
| 1987 | 9 |
| 1988 | 5 |
| 1989 | 7 |
| 1990 | 8 |
| 1991 | 5 |
| 1992 | 11 |
| 1993 | 7 |
| 1994 | 8 |
| 1995 | 5 |
| 1996 | 7 |
| 1997 | 4 |
| 1998 | 5 |
| 1999 | 6 |
| 2000 | 2 |
| 2001 | 7 |
| 2002 | 6 |
| 2003 | 4 |
| 2004 | 3 |
| 2005 | 3 |
| 2006 | 4 |
| 2007 | 9 |
| 2008 | 3 |
| 2009 | 5 |
| 2010 | 2 |
| 2011 | 5 |
| 2012 | 4 |
| 2013 | 4 |
| 2014 | 3 |
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 10 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 3 |
| 2026 | 2 |
Where
Open the mapLatest 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 year(c.\"eventDate\") = 1989
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4470706'))
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 year(c."eventDate") = 1989
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4470706'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun 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 SEA90LA023Accident · No injuriesLimited investigationFinal reportHughes 369D · Stayton, ORThe maintenance personnel failed to record the previous flight time for the overrunning clutch on airworthiness certification documents when the assembly was overhauled. Also, causal to the accident was the operation of the aircraft by the operator for 175…NTSB LAX90LA033Accident · 1 fatalLimited investigationFinal reportMcDonnell Douglas 369 · Barstow, CAImproper planning/decision by the pilot, and his delay in jettisoning the load.NTSB SEA90LA010Accident · No injuriesLimited investigationFinal reportHughes 369D · Neah Bay, WAFatigue failure of all four attachment studs of the tailrotor gearbox resulting in separation of the gear box, and inadequate maintenance inspection.NTSB SEA90FA005Accident · 1 fatalField investigationFinal reportHughes 369D · Bothell, WAThe pilot failed to determine weather conditions before the flight, his attempt to fly VFR in IMC, and his failure to maintain obstacle clearance altitude. Factors in the accident were the low ceiling, rain and fog weather conditions.NTSB SEA89LA170Accident · No injuriesLimited investigationFinal reportHughes 369D · Petersburg, AKThe pilot failed to obtain clearance over trees. Contributing to the accident was: the aircraft being above its maximum certificated gross weight limitation and the trees.NTSB BFO89LA055Accident · Serious injuriesLimited investigationFinal reportHughes 500D · Williamson, WVPilot's failure to see and avoid the wire which crossed the end of the field in which he was taking off.NTSB LAX89LA141Accident · No injuriesLimited investigationFinal reportHughes 369D · Vallejo, CAFatigue failure of a defective pc tube assembly resulting in a loss of engine power. A contributing factor was the unsuitable terrain.