NTSB investigations: Allison 250 SER 400HP, 1984
3 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\") = 1984
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") = 1984
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 LAX84LA488Accident · Serious injuriesLimited investigationFinal reportBell 206B · Paso Robles, CAPlt stated that after receiving a special VFR clearence he took off to spray a nearby field. He continued to state that he 'made a couple of circuits over the field, observed the telephone wires and began spraying. After performing 2 or 3 passes I hit some…NTSB FTW84LA378Accident · Minor injuriesLimited investigationFinal reportBell 206B · Houma, LAThe helicopter was on a cargo, non scheduled air taxi flight when the plt smelled smoke. A precautionary landing was made on a beach after which the acft was destroyed by fire.NTSB LAX84LA314Accident · No injuriesLimited investigationFinal reportHughes 369D · Honolulu, HIThe helicopter experienced a tail rotor failure shortly after departing the airport on a VFR local sling loading flt. The plt stated that, 'at approx 500 ft asl on climb out experienced sudden, severe vibration. Made a 180 degree turn to return to airport &…