NTSB investigations: Bell 47G-2, 1990
3 cases on aircraft the registry lists as Bell 47G-2. 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 | 21 |
|---|---|
| 1965 | 16 |
| 1966 | 13 |
| 1967 | 18 |
| 1968 | 16 |
| 1969 | 22 |
| 1970 | 20 |
| 1971 | 10 |
| 1972 | 14 |
| 1973 | 19 |
| 1974 | 20 |
| 1975 | 20 |
| 1976 | 10 |
| 1977 | 9 |
| 1978 | 14 |
| 1979 | 12 |
| 1980 | 4 |
| 1981 | 9 |
| 1982 | 11 |
| 1983 | 9 |
| 1984 | 6 |
| 1985 | 10 |
| 1986 | 6 |
| 1987 | 10 |
| 1988 | 2 |
| 1989 | 6 |
| 1990 | 3 |
| 1991 | 4 |
| 1992 | 3 |
| 1993 | 1 |
| 1994 | 5 |
| 1995 | 4 |
| 1997 | 2 |
| 1998 | 1 |
| 1999 | 1 |
| 2000 | 2 |
| 2001 | 2 |
| 2002 | 4 |
| 2004 | 2 |
| 2005 | 1 |
| 2006 | 2 |
| 2007 | 1 |
| 2009 | 2 |
| 2011 | 1 |
| 2012 | 2 |
| 2014 | 1 |
| 2016 | 1 |
| 2018 | 1 |
| 2019 | 3 |
| 2022 | 1 |
| 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\") = 1990
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1181008'))
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") = 1990
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1181008'))
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 CHI90DEP07Accident · No injuriesFinal reportBell 47-G2 · Hatley, WIThe partial loss of power due to sticking intake valves.NTSB MKC90LA088Accident · Serious injuriesLimited investigationFinal reportBell 47 · Oakdale, MNA slipping rotor drive clutch assembly due to improper maintenance by company personnel. Contributing factors were static wires in the path.NTSB CHI90LA067Accident · No injuriesLimited investigationFinal reportBell 47-G2 · Lafayette, INThe helicopter student's iproper use of the collective pitch lever during the landing phase of flight. The pilot's lack of total expereince, the relatively high wind, and inadvertent liftoff of the helicopter were factors related to the accident.