NTSB investigations: Allison 250 SER 250HP, 2021
4 cases on aircraft whose registry engine model is Allison 250 SER 250HP. 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
| 1967 | 1 |
|---|---|
| 1968 | 3 |
| 1969 | 4 |
| 1970 | 9 |
| 1971 | 3 |
| 1972 | 9 |
| 1973 | 6 |
| 1974 | 2 |
| 1975 | 4 |
| 1976 | 1 |
| 1977 | 5 |
| 1978 | 2 |
| 1979 | 5 |
| 1980 | 8 |
| 1981 | 13 |
| 1982 | 9 |
| 1983 | 9 |
| 1984 | 10 |
| 1985 | 4 |
| 1986 | 5 |
| 1987 | 8 |
| 1988 | 6 |
| 1989 | 5 |
| 1990 | 10 |
| 1991 | 1 |
| 1993 | 6 |
| 1994 | 6 |
| 1995 | 1 |
| 1996 | 5 |
| 1997 | 3 |
| 1998 | 6 |
| 1999 | 8 |
| 2000 | 4 |
| 2001 | 3 |
| 2002 | 6 |
| 2003 | 6 |
| 2004 | 5 |
| 2005 | 4 |
| 2006 | 6 |
| 2007 | 3 |
| 2008 | 5 |
| 2009 | 1 |
| 2010 | 3 |
| 2011 | 3 |
| 2012 | 5 |
| 2013 | 4 |
| 2014 | 3 |
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 2 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 4 |
| 2025 | 4 |
| 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\") = 2021
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03002', '03003'))
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") = 2021
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03002', '03003'))
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 CEN22LA009Accident · Minor injuriesClass 3 · LimitedFinal reportBell 206 · Gonzales, LAThe student pilot’s failure to compensate for an unanticipated right yaw, which resulted in a loss of tail rotor effectiveness and helicopter control.NTSB WPR21LA333Accident · Serious injuriesClass 4 · LimitedFinal reportBell Helicopter Textron 206L-1 · Glide, ORThe pilot’s failure to maintain clearance from a tree during an aerial application.NTSB CEN21LA139Accident · No injuriesClass 4 · LimitedFinal reportHughes 369 · Kaufman, TXThe pilot’s failure to maintain clearance from a power line during low-level maneuvering.NTSB WPR21LA084Accident · No injuriesClass 4 · LimitedFinal reportHughes 369D · Winthrop, WAThe pilot’s failure to adequately monitor the environment which resulted in a collision with a snowbank and subsequent loss of control.