NTSB investigations: Lycoming TVO-435-GIA, 1989
4 cases on aircraft whose registry engine model is Lycoming TVO-435-GIA. 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
| 1964 | 6 |
|---|---|
| 1965 | 3 |
| 1966 | 12 |
| 1967 | 15 |
| 1968 | 14 |
| 1969 | 16 |
| 1970 | 12 |
| 1971 | 6 |
| 1972 | 12 |
| 1973 | 9 |
| 1974 | 12 |
| 1975 | 10 |
| 1976 | 9 |
| 1977 | 10 |
| 1978 | 9 |
| 1979 | 9 |
| 1980 | 11 |
| 1981 | 5 |
| 1982 | 4 |
| 1983 | 5 |
| 1984 | 4 |
| 1985 | 3 |
| 1986 | 8 |
| 1987 | 4 |
| 1988 | 2 |
| 1989 | 4 |
| 1990 | 5 |
| 1991 | 7 |
| 1992 | 3 |
| 1993 | 3 |
| 1994 | 2 |
| 1995 | 1 |
| 1996 | 3 |
| 1997 | 7 |
| 1998 | 4 |
| 1999 | 4 |
| 2000 | 3 |
| 2001 | 1 |
| 2002 | 1 |
| 2003 | 3 |
| 2004 | 2 |
| 2005 | 3 |
| 2006 | 1 |
| 2007 | 1 |
| 2008 | 5 |
| 2012 | 1 |
| 2013 | 2 |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 3 |
| 2020 | 1 |
| 2024 | 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\") = 1989
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41526'))
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") = 1989
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41526'))
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 ATL90LA030Accident · Serious injuriesLimited investigationFinal reportBell 47G-3B1 · Ewell, ALThe loss of engine power, for undetermined reasons, at low altitude during a practice autorotation. Contributing to the accident was the instructor's failure to properly plan the demonstrated autorotation so as to preclude an accident, in the event that power…NTSB SEA89LA175Accident · 1 fatalLimited investigationFinal reportBell 47G3B2 · Monitor, WAThe pilot failed to maintain aircraft separation from obstacles on the ground. A factor in the accident was the bright glare from the rising sun.NTSB SEA89LA116Accident · Minor injuriesLimited investigationFinal reportBell 47G3B2A · Dyer, NVThe pilots poor planning in attempting a hover in undesirable conditions which resulting in the inability to maintain rotor rom. Contributing to the accident was the mountainous terrain and high density alt.NTSB LAX89DVA03Accident · Serious injuriesFinal reportBell 47G-3B2 · Strathmore, CAImproper compensation for wind conditions by the pilot, and his failure to maintain clearance from the service truck. Factors relating to the accident were: the unfavorable (variable) and gusty wind conditions and close proximity of the service vehicle.