NTSB investigations: Allison 250 SER 250HP, 2017
2 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\") = 2017
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") = 2017
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 ERA18LA020Accident · Minor injuriesClass 3 · LimitedFinal reportBell 206 · Union City, TNThe pilot’s inadvertent slope landing and attempted recovery, which resulted in an incipient dynamic rollover, mast bumping, and separation of the main rotor.NTSB CEN17LA174Accident · No injuriesLimited investigationFinal reportBell 407 · Venice, LAAn in-flight separation of the tip block from the tail rotor blade due to an inadequate blade repair, which resulted in a rotor imbalance sufficient to crack the gearbox attachment studs and gearbox support assembly, and inadequate postrepair test procedures,…