NTSB investigations: Hiller UH-12E, 1996
9 cases on aircraft the registry lists as Hiller UH-12E. 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 | 9 |
|---|---|
| 1965 | 14 |
| 1966 | 15 |
| 1967 | 7 |
| 1968 | 8 |
| 1969 | 4 |
| 1970 | 3 |
| 1971 | 5 |
| 1972 | 3 |
| 1973 | 8 |
| 1974 | 14 |
| 1975 | 18 |
| 1976 | 16 |
| 1977 | 14 |
| 1978 | 25 |
| 1979 | 19 |
| 1980 | 21 |
| 1981 | 18 |
| 1982 | 8 |
| 1983 | 15 |
| 1984 | 14 |
| 1985 | 7 |
| 1986 | 9 |
| 1987 | 8 |
| 1988 | 12 |
| 1989 | 9 |
| 1990 | 2 |
| 1991 | 5 |
| 1992 | 6 |
| 1993 | 10 |
| 1994 | 6 |
| 1995 | 6 |
| 1996 | 9 |
| 1997 | 6 |
| 1998 | 7 |
| 1999 | 6 |
| 2000 | 2 |
| 2001 | 3 |
| 2002 | 2 |
| 2003 | 3 |
| 2004 | 1 |
| 2005 | 4 |
| 2007 | 2 |
| 2008 | 5 |
| 2009 | 1 |
| 2010 | 6 |
| 2011 | 4 |
| 2013 | 1 |
| 2014 | 2 |
| 2015 | 2 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2024 | 1 |
| 2025 | 2 |
| 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\") = 1996
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4360122', '4360137'))
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") = 1996
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4360122', '4360137'))
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 FTW96LA385Accident · Minor injuriesLimited investigationFinal reportHiller UH12E · Hamburg, ARThe loss of tail rotor control as result of a tail rotor blade strike by a partially disconnected ballast weight, due to a disconnected pin. A factor was the lack of suitable terrain for the forced landing.NTSB FTW96LA315Accident · Serious injuriesLimited investigationFinal reportHiller UH-12E · Mount Holly, ARFuel exhaustion due to the pilot's failure to refuel the helicopter. A factor was the lack of suitable terrain for the forced landing.NTSB LAX96LA279Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Healdsburg, CAThe failure of the pilot to confirm a loss of power before entering autorotation after reading an erroneous instrument indication on the helicopter's dual tachometer. Factors in the accident were the erratic instrument, and maintenance personnel who failed to…NTSB ATL96LA104Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Cottondale, FLfailure of the main rotor drive torsional coupling and inner gimbal ring, which resulted in jamming of the flight controls during an attempted autorotation.NTSB FTW96LA285Accident · No injuriesLimited investigationFinal reportHiller UH12 · Franklin, LAloss of engine power for undetermined reasons, and the pilot's failure to maintain rotor RPM. A factor was the unsuitable terrain available for the precautionary landing.NTSB SEA96LA100Accident · No injuriesLimited investigationFinal reportHiller UH-12 · Walla Walla, WAthe pilot's inadequate preflight/planning, and his failure to refuel the helicopter with sufficient fuel before flight, which resulted in fuel exhaustion and a subsequent forced landing. A factor relating to the accident was: an inaccurate fuel quantity…NTSB IAD96LA077Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Hellam, PAthe pilot's loss of directional control during aerial application for undetermined reasons.NTSB CHI96LA151Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Big Lake, MNthe pilot's inadequate preflight of the helicopter by not having removed a tiedown strap before attempting takeoff.NTSB ATL96LA076Accident · Serious injuriesLimited investigationFinal reportHiller UH12-E · Huger, SCThe blocked fuel vent line that resulted in engine stoppage. A factor was tall trees that intervened the helicopter's flight path.