NTSB investigations: Lycoming TVO-435-GIA, 1983
5 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\") = 1983
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") = 1983
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 ATL84FA001Accident · 1 fatalField investigationFinal reportBell 47G-3B1 · Pliny, WVThe helicopter was being used in the construction of elect transmission lines. A 150-FT longline cable had been utilizedon an earlier flight for lifting external loads. However, there was no reason for the longline to be attached on the accident flight as the…NTSB MKC83FA196Accident · Serious injuriesField investigationFinal reportBell 47G-3B · Paxton, NEThe plt stated that after landing on a truck platform, he did not decrease rotor RPM & did not lower collective to flat pitch as he was attempting to recover a piece of paper that had fallen to the floor on the right side of the cockpit. As he released the…NTSB LAX83FA366Accident · Serious injuriesField investigationFinal reportBell 47G-3B-1 · S. Lake Tahoe, CADuring takeoff over descending terrain in a mountainous area, the RPM began decaying when the helicopter had accelerated to 40 KTS & was about 75 ft AGL. The plt applied more throttle & increased the collective, then noted that the manifold pressure was…NTSB DEN83LA154Accident · No injuriesLimited investigationFinal reportBell 47G-3B-1 Soloy · Townsend, MTThe helicopter made a hard touchdown during an autorotative forced landing after the engine quit. During the landing themain rotor severed the tail boom. The pilot stretched the autorotational glide to reach a hay field and lost main rotor RPM in the process.…NTSB LAX83LA184Accident · Minor injuriesLimited investigationFinal reportBell 47G-3B-1 · Delano, CAThe acft collided with a power line and trees while applying pesticide to an orchard. The pilot was flying into the rising sun and failed to see the power line which serviced an agricultural deep well.