NTSB investigations: Hughes 369HS, 1991
3 cases on aircraft the registry lists as Hughes 369HS. 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
| 1969 | 1 |
|---|---|
| 1970 | 2 |
| 1971 | 3 |
| 1972 | 7 |
| 1973 | 3 |
| 1974 | 3 |
| 1975 | 13 |
| 1976 | 9 |
| 1977 | 9 |
| 1978 | 6 |
| 1979 | 6 |
| 1980 | 9 |
| 1981 | 7 |
| 1982 | 5 |
| 1983 | 3 |
| 1984 | 4 |
| 1985 | 2 |
| 1986 | 4 |
| 1987 | 5 |
| 1988 | 3 |
| 1989 | 3 |
| 1990 | 7 |
| 1991 | 3 |
| 1992 | 3 |
| 1993 | 3 |
| 1994 | 5 |
| 1995 | 4 |
| 1996 | 2 |
| 1997 | 4 |
| 1998 | 1 |
| 1999 | 4 |
| 2000 | 3 |
| 2001 | 2 |
| 2002 | 2 |
| 2003 | 2 |
| 2004 | 1 |
| 2005 | 2 |
| 2006 | 1 |
| 2009 | 1 |
| 2010 | 1 |
| 2012 | 1 |
| 2013 | 2 |
| 2014 | 1 |
| 2015 | 1 |
| 2021 | 1 |
| 2022 | 2 |
| 2026 | 1 |
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\") = 1991
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4470728'))
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") = 1991
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4470728'))
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 LAX91LA198Accident · Minor injuriesLimited investigationFinal reportHughes 369HS · Keanae, HIThe total failure in fatigue of the helicopter's spur adapter gearshaft. A contributing factor was related to the lack of a suitable emergency landing site.NTSB LAX91LA172Accident · Minor injuriesLimited investigationFinal reportHughes 369C · Papua, Papua New GuineaThe loss of control of the helicopter due to a restriction of the cyclic control system.NTSB BFO91LA036Accident · No injuriesLimited investigationFinal reportHughes 369HS · Columbia, MDThe pilot's inadequate visual lookout, which resulted in his failure to see-and-avoid the obstruction (fence post).