NTSB investigations: Bell 47G-4A, 1995
4 cases on aircraft the registry lists as Bell 47G-4A. 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
| 1966 | 2 |
|---|---|
| 1967 | 1 |
| 1968 | 5 |
| 1969 | 10 |
| 1970 | 4 |
| 1971 | 10 |
| 1972 | 4 |
| 1973 | 7 |
| 1974 | 7 |
| 1975 | 5 |
| 1976 | 4 |
| 1977 | 3 |
| 1978 | 2 |
| 1979 | 5 |
| 1980 | 3 |
| 1981 | 5 |
| 1982 | 1 |
| 1983 | 5 |
| 1984 | 1 |
| 1985 | 1 |
| 1986 | 1 |
| 1987 | 2 |
| 1990 | 1 |
| 1991 | 1 |
| 1992 | 1 |
| 1993 | 1 |
| 1995 | 4 |
| 1996 | 3 |
| 1997 | 2 |
| 1998 | 2 |
| 2000 | 1 |
| 2001 | 2 |
| 2002 | 2 |
| 2004 | 1 |
| 2005 | 2 |
| 2006 | 1 |
| 2008 | 1 |
| 2010 | 3 |
| 2011 | 1 |
| 2015 | 2 |
| 2019 | 1 |
| 2025 | 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\") = 1995
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1181031'))
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") = 1995
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1181031'))
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 LAX96LA149Accident · No injuriesLimited investigationFinal reportBell 47G-4A · Pacific Ocean (Pacific Ocean)failure of the pilot to maintain lateral control of the helicopter, while hovering in preparation for a precautionary landing next to a ship at sea. Factors relating to the accident were: the passenger's premature evacuation from the helicopter, and the…NTSB FTW96LA005Accident · Minor injuriesLimited investigationFinal reportBell 47G-4A · Edinburg, TXthe pilot's improper takeoff planning which resulted in the loss of conrol. A factor was the gusty crosswind condition.NTSB CHI95LA270Accident · Minor injuriesLimited investigationFinal reportBell 47 · Arlington Hts, ILplot misjudged the flare. The factors included the pilot getting too close to the lead helicopter, allowing his airspeed to get too slow, and encountering settling with power.NTSB FTW95LA105Accident · Minor injuriesLimited investigationFinal reportBell 47G-4A · El Indio, TXThe loss of tail rotor effectiveness. A factor was the gusty right quartering tailwind.