NTSB investigations: Hughes 269B, 1991
5 cases on aircraft the registry lists as Hughes 269B. 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
| 1964 | 14 |
|---|---|
| 1965 | 25 |
| 1966 | 31 |
| 1967 | 20 |
| 1968 | 22 |
| 1969 | 23 |
| 1970 | 25 |
| 1971 | 22 |
| 1972 | 13 |
| 1973 | 14 |
| 1974 | 15 |
| 1975 | 10 |
| 1976 | 11 |
| 1977 | 15 |
| 1978 | 13 |
| 1979 | 12 |
| 1980 | 10 |
| 1981 | 8 |
| 1982 | 7 |
| 1983 | 2 |
| 1984 | 6 |
| 1985 | 2 |
| 1986 | 3 |
| 1987 | 3 |
| 1988 | 4 |
| 1989 | 2 |
| 1990 | 1 |
| 1991 | 5 |
| 1992 | 1 |
| 1993 | 2 |
| 1995 | 4 |
| 1996 | 2 |
| 1997 | 2 |
| 1998 | 1 |
| 1999 | 1 |
| 2000 | 2 |
| 2001 | 2 |
| 2003 | 2 |
| 2004 | 1 |
| 2006 | 2 |
| 2008 | 2 |
| 2010 | 1 |
| 2011 | 1 |
| 2013 | 1 |
| 2015 | 3 |
| 2016 | 1 |
| 2019 | 1 |
| 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 ('4470502'))
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 ('4470502'))
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 SEA92LA005Accident · No injuriesLimited investigationFinal reportHughes 269B · Hillsboro, ORThe failure to maintain rotor RPM. Factors include inadequate preflight planning, overconfidence in aircraft's ability, and non-suitable terrain.NTSB FTW91FA123Accident · 1 fatalField investigationFinal reportHughes 269B · Brickeys, ARThe failure of the clutch control cable due to fraying which initiated the forced landing and the operator's failure to perform recommended inspections on the aircraft. Factors were the pilot's failure to maintain rotor RPM and the unsuitable terrain.NTSB SEA91LA137Accident · Minor injuriesLimited investigationFinal reportHughes 269B · Warrenton, ORThe pilot failed to maintain proper rotor speed during a simulated autorotation.NTSB LAX91LA257Accident · 1 fatalLimited investigationFinal reportSchweizer 269B · Cottonwood, CAThe pilot's inadequate visual lookout. The transmission wire was a factor in the accident.NTSB SEA91LA104Accident · No injuriesLimited investigationFinal reportHughes 269B · Grand Ronde, ORThe pilot inadvertently interfered with the controls.