NTSB investigations: Allison 250 SER 400HP, 1995
5 cases on aircraft whose registry engine model is Allison 250 SER 400HP. 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
| 1969 | 2 |
|---|---|
| 1972 | 3 |
| 1973 | 1 |
| 1974 | 1 |
| 1975 | 7 |
| 1976 | 7 |
| 1977 | 9 |
| 1978 | 8 |
| 1979 | 10 |
| 1980 | 16 |
| 1981 | 6 |
| 1982 | 7 |
| 1983 | 5 |
| 1984 | 3 |
| 1985 | 8 |
| 1986 | 5 |
| 1987 | 8 |
| 1988 | 3 |
| 1989 | 7 |
| 1990 | 7 |
| 1991 | 5 |
| 1992 | 2 |
| 1993 | 5 |
| 1994 | 3 |
| 1995 | 5 |
| 1996 | 7 |
| 1997 | 7 |
| 1998 | 4 |
| 1999 | 4 |
| 2000 | 3 |
| 2001 | 5 |
| 2002 | 2 |
| 2003 | 6 |
| 2004 | 5 |
| 2005 | 4 |
| 2006 | 1 |
| 2007 | 4 |
| 2008 | 2 |
| 2009 | 2 |
| 2010 | 4 |
| 2011 | 4 |
| 2013 | 2 |
| 2015 | 5 |
| 2016 | 4 |
| 2018 | 1 |
| 2019 | 1 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 2 |
| 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.engine_model_code IN ('03013', '03012'))
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.engine_model_code IN ('03013', '03012'))
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 LAX96FA076Accident · 1 fatalField investigationFinal reportHughes 369D · Feather Falls, CAthe pilot's failure to jettison his external load after it came in contact with trees and terrain. The pilot's failure to maintain altitude/clearance above trees and hilly terrain was a related factor.NTSB SEA96LA025Accident · Minor injuriesLimited investigationFinal reportHughes 369D · Scotts Mills, ORThe pilot's failure to maintain adequate clearance from the ground.NTSB FTW96LA054Accident · Minor injuriesLimited investigationFinal reportHughes 369HS · Leakey, TXimproper planning/decision by the pilot, by failing to ensure there was adequate fuel on board, which resulted in fuel exhaustion and a subsequent roll-over during a forced landing on hilly terrain. A factor relating to the accident was: downsloping terrain…NTSB LAX96LA009Accident · Minor injuriesLimited investigationFinal reportHughes 369HS · Hana, HIthe loss of engine power due to inadequate maintenance inspection of the fuel system which permitted air to enter the engine fuel supply. A factor in the accident was the pilot's improper execution of the autorotation landing.NTSB ANC95LA112Accident · No injuriesLimited investigationFinal reportBell 206B-3 · Bettles, AKFailure of the pilot to ensuring the sling cable was free of the skid before lifting off into a hover, which allowed the cable to become wrapped (entangled) around the skid.