NTSB investigations: Hughes Helicopters HUGHES 369D, 1992
11 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\") = 1992
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") = 1992
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 LAX93LA071Accident · No injuriesLimited investigationFinal reportHughes 369D · Hilo, HIThe bearing failures due to the operator's use of improper maintenance inspection and overhaul procedures by installing an unserviceable compressor module in the helicopter engine. Factors in the accident were the unsuitable nature of the terrain for the…NTSB LAX93LA057Accident · 2 fatalLimited investigationFinal reportHughes 369B · Fallbrook, CAThat the pilot misjudged the distance of the high tension wires from the helicopter.NTSB LAX93LA044Accident · No injuriesLimited investigationFinal reportHughes 369D · Carlsbad, CAFailure of the overrunning clutch assembly bearing for undetermined reasons.NTSB MIA93WA068Accident · Minor injuriesForeign investigationHughes 369D · Buenos Aires, ArgentinaNTSB ANC92LA178Accident · Minor injuriesLimited investigationFinal reportHughes 369D · George Inlet, AKThe pilot's improper in flight planning and decision and his failure to maintain altitude during the turn to reverse direction. Contributing to the accident was the calm water.NTSB ANC92FA164Accident · 3 fatalField investigationFinal reportMcdonnell Douglas 369D · Eagle, AKAn inflight fatigue failure and separation of a main rotor blade, inadequate operator maintenance and inspection, and material defect.NTSB ANC92FA159Accident · Serious injuriesField investigationFinal reportHughes 369D · Nunavaugaluk Lk, AKThe separation of the tail rotor abrasion strip and the subsequent total loss of the tail rotor. Factors contributing to the accident were: insufficient manufacturer's maintenance design changes, inadequate aircraft equipment design by the manufacturer and…NTSB LAX92GA347Accident · 1 fatalFinal reportHughes 369D · Maxwell, CAThe failure of the pilot to maintain an adequate visual outlook, and failure of the company to provide adequate training. Contributing to the accident was: inadequate company supervision during the operation, and inadequate surveillance by the FAA which…NTSB ANC92LA090Accident · No injuriesLimited investigationFinal reportMcDonnell Douglas MD-500D · Polk Inlet, AKThe pilot's failure to follow proper procedure and the company's inadequate procedures and directives. A factor was the uneven terrain.NTSB LAX92T#A03Accident · No injuriesClass 3Final reportMcdonnell Douglas 369D · Mesa, AZNTSB BFO92FA022Accident · 1 fatalField investigationFinal reportHughes 369D · Edison, NJThe blockage of the fuel nozzle which resulted in partial loss of engine power. Contributing was the pilot's failure to maintain rotor RPM.