NTSB investigations: Hughes 269C, 1991
8 cases on aircraft the registry lists as Hughes 269C. 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
| 1970 | 1 |
|---|---|
| 1971 | 6 |
| 1972 | 8 |
| 1973 | 6 |
| 1974 | 7 |
| 1975 | 8 |
| 1976 | 7 |
| 1977 | 18 |
| 1978 | 16 |
| 1979 | 11 |
| 1980 | 13 |
| 1981 | 13 |
| 1982 | 8 |
| 1983 | 6 |
| 1984 | 7 |
| 1985 | 14 |
| 1986 | 11 |
| 1987 | 6 |
| 1988 | 12 |
| 1989 | 14 |
| 1990 | 11 |
| 1991 | 8 |
| 1992 | 7 |
| 1993 | 3 |
| 1994 | 6 |
| 1995 | 3 |
| 1996 | 5 |
| 1997 | 2 |
| 1998 | 3 |
| 1999 | 3 |
| 2000 | 8 |
| 2001 | 6 |
| 2002 | 1 |
| 2003 | 7 |
| 2004 | 2 |
| 2005 | 3 |
| 2006 | 1 |
| 2007 | 1 |
| 2009 | 2 |
| 2010 | 1 |
| 2011 | 2 |
| 2012 | 3 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 1 |
| 2021 | 1 |
| 2023 | 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 ('4470504'))
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 ('4470504'))
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 NYC91LA227Accident · Minor injuriesLimited investigationFinal reportHughes 269C · Galloway, OHImproper supervision by the flight instructor which resulted in an inadvertent ground contact and a dynamic rollover. A factor related to the accident was improper use of the flight controls by the non-rated student pilot.NTSB CHI91LA207Accident · No injuriesLimited investigationFinal reportHughes 300C · Whitehall, MIThe pilot's failure to maintain adequate clearance from the water. A factor was the dark night light condition.NTSB ATL91FA120Accident · 1 fatalField investigationFinal reportHughes 269C · Blakely, GALoss of engine power for an undetermined reason, and failure of the instructor pilot (CFI) to follow procedures and maintain rotor RPM.NTSB MIA91LA148Accident · No injuriesLimited investigationFinal reportHughes 269C · Tarpon Springs, FLDelay by the pilot-in-command to apply adequate throttle & collective during transition off a dock for a takeoff over a lake. Contributing to the accident was his lack of total experience in the type operation.NTSB LAX91LA152Accident · No injuriesLimited investigationFinal reportHughes 269C · Honolulu, HIThe instructor's improperly planned approach. A factor was the pilot's failure to observe performance data for the helicopter.NTSB CHI91LA097Accident · Serious injuriesLimited investigationFinal reportHughes 269C · North Mankato, MNThe fatique failure of the tail boom support strut attachment cluster and the improper inspection of the cluster attachment.NTSB FTW91LA041Accident · No injuriesLimited investigationFinal reportHughes 269C · Knowles, OKThe pilot's failure to maintain a proper descent rate during the maneuver and his delay in initiating the go-around.NTSB MIA91LA060Accident · No injuriesLimited investigationFinal reportHughes 269C · Deland, FLFailure of the commercial pilot applicant to pull collective pitch and delay by the check airman to pull collective and apply power to recover, resulting in a hard landing.