NTSB investigations: Allison 250-C20 series, 1993
7 cases on aircraft whose registry engine model is Allison 250-C20 series. 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
| 1973 | 2 |
|---|---|
| 1974 | 1 |
| 1975 | 2 |
| 1978 | 1 |
| 1979 | 3 |
| 1980 | 3 |
| 1981 | 5 |
| 1982 | 2 |
| 1983 | 2 |
| 1984 | 7 |
| 1985 | 6 |
| 1986 | 6 |
| 1987 | 6 |
| 1988 | 5 |
| 1989 | 7 |
| 1990 | 6 |
| 1991 | 5 |
| 1992 | 9 |
| 1993 | 7 |
| 1994 | 13 |
| 1995 | 10 |
| 1996 | 10 |
| 1997 | 10 |
| 1998 | 4 |
| 1999 | 16 |
| 2000 | 13 |
| 2001 | 13 |
| 2002 | 14 |
| 2003 | 19 |
| 2004 | 15 |
| 2005 | 14 |
| 2006 | 12 |
| 2007 | 19 |
| 2008 | 5 |
| 2009 | 10 |
| 2010 | 4 |
| 2011 | 4 |
| 2012 | 6 |
| 2013 | 9 |
| 2014 | 11 |
| 2015 | 5 |
| 2016 | 2 |
| 2017 | 9 |
| 2018 | 10 |
| 2019 | 2 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 7 |
| 2023 | 3 |
| 2024 | 5 |
| 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\") = 1993
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03020'))
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") = 1993
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03020'))
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 LAX94LA041Accident · 2 fatalLimited investigationFinal reportHughes 369D · Pacific Ocean (Pacific Ocean)An undetermined event that resulted in the accident.NTSB FTW93GA269Accident · No injuriesFinal reportBell 206B · Wht Sands Mr, NMThe pilot's failure to land an adequate distance away from the unsecured parachute.NTSB LAX93LA375Accident · 2 fatalLimited investigationFinal reportBell 206B · Pacific Ocean (Pacific Ocean)a loss of engine power for undetermined reasons.NTSB LAX93LA319Accident · Serious injuriesLimited investigationFinal reportHiller UH-12E · Dixon, CAthe failure of the pilot to visually detect and avoid the guy wire.NTSB LAX93LA249Accident · No injuriesLimited investigationFinal reportHughes 369D · Kahului, HIThe failure of the pilot to maintain adequate ground obstruction clearance while engaged in a cattle herding operation.NTSB FTW93TA#03Accident · No injuriesFinal reportBell 206B · Dallas, TXNTSB LAX93LA132Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Kahului, HIThe pilots failure to maintain an adequate visual lookout for obstructions while performing a low altitude surveillance operation in a mountainous area, and, his failure to select an altitude sufficient to ensure clearance from all potential obstacles.