NTSB investigations: Hughes 269B, 1988
4 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\") = 1988
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") = 1988
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 CHI88FA214Accident · 3 fatalField investigationFinal reportHughes 269B · Hampton, ILNTSB CHI88FA190Accident · 2 fatalField investigationFinal reportMcdonnell Douglas 269B · Braceville, ILConducting maneuvering flight the PIC failed to monitor the helicopter systems and allowed the main rotor RPM to decay to the point where it would not produce enough lift to sustain flight.NTSB LAX88LA233Accident · No injuriesLimited investigationFinal reportHughes 269B · Big Bear, CAWhile cruising, the plt perceived he was experiencing a loss of engine & rotor RPM. The plt stated that he attempted to regain RPM by autorotating. The RPM was regained in the autorotative descent. The plt elected to continue the descent to a landing. Upon…NTSB CHI88LA108Accident · Minor injuriesLimited investigationFinal reportHughes 269B · Minneapolis, MNThe pilot was executing a downwind takeoff, the winds reportedly gusting to 25 knots, loaded with two passengers, when just after takeoff the pilot stated the helicopter experienced a loss of power. The pilot then attempted to execute an autorotation, but…