NTSB investigations: Lycoming VO-435 series, 1989
11 cases on aircraft whose registry engine model is Lycoming VO-435 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
| 1964 | 17 |
|---|---|
| 1965 | 18 |
| 1966 | 15 |
| 1967 | 21 |
| 1968 | 12 |
| 1969 | 16 |
| 1970 | 28 |
| 1971 | 15 |
| 1972 | 20 |
| 1973 | 25 |
| 1974 | 28 |
| 1975 | 24 |
| 1976 | 18 |
| 1977 | 14 |
| 1978 | 27 |
| 1979 | 20 |
| 1980 | 18 |
| 1981 | 16 |
| 1982 | 15 |
| 1983 | 14 |
| 1984 | 14 |
| 1985 | 16 |
| 1986 | 13 |
| 1987 | 10 |
| 1988 | 12 |
| 1989 | 11 |
| 1990 | 6 |
| 1991 | 13 |
| 1992 | 10 |
| 1993 | 8 |
| 1994 | 11 |
| 1995 | 9 |
| 1996 | 7 |
| 1997 | 4 |
| 1998 | 5 |
| 1999 | 5 |
| 2000 | 6 |
| 2001 | 5 |
| 2002 | 8 |
| 2003 | 8 |
| 2004 | 4 |
| 2005 | 4 |
| 2006 | 4 |
| 2007 | 4 |
| 2009 | 3 |
| 2010 | 2 |
| 2011 | 5 |
| 2012 | 3 |
| 2013 | 6 |
| 2014 | 6 |
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 6 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2025 | 1 |
| 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\") = 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 ('41525'))
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 ('41525'))
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 LAX90LA042Accident · Minor injuriesLimited investigationFinal reportBell 47G-II · Rialto, CAThe pilot's loss of directional control and subsequent overcontrol while hovering. Contributing to the accident were the gusty wind conditions and the pilot's inexperience.NTSB LAX90DVM01Accident · No injuriesFinal reportBell 47G-5 · Guadalupe, CAThe pilot's failure to maintain sufficient clearance allowing the aircraft to collide with a wooden power pole. Contributing to the accident was the sunglare which inhibited the pilot's vision.NTSB ATL90DKJ02Accident · No injuriesFinal reportBell 47G2 · Wettumpka, ALThe pilot's failure to avoid obstacles during aerial application maneuvering.NTSB MIA89LA240Accident · No injuriesLimited investigationFinal reportBell 47G-2 · Cayey, PRLoss of engine power for an unknown reason. A factor related to the accident was: the presence of trees in the emergency landing area.NTSB MIA89LA221Accident · Serious injuriesLimited investigationFinal reportContinental Copters Tomcat MK6C · Quitman, MSFailure of the tail boom attachment.NTSB MIA89LA213Accident · No injuriesLimited investigationFinal reportBell 47G-2 · Sarasota, FLThe student pilot's inadequate preflight planning/preparation, which resulted in fuel exhaustion due to an inadequate supply of fuel. Factors related to the accident were: the student pilot's lack of total experience & tree(s) in the emergency landing area.NTSB ATL89FA193Accident · 1 fatalField investigationFinal reportTexas Helicopter OH-13/M74 · Norman Park, GAImproper planning/decision by the pilot, which resulted in his physical impairment from exposure to lannate, and his failure to maintain altitude/clearance above the ground. A factor related to the accident was: failure of the pilot to use a respirator while…NTSB LAX89DVA07Accident · No injuriesFinal reportTexas Helicopter OH-13E/M74 · Hilmar, CAThe pilot's loss of directional control during an attempted takeoff from a loading platform.NTSB CHI89DEX05Accident · No injuriesFinal reportTexas Helicopter OH-13H/M74A · New Richmond, INThe pilot's misjudgement of the fuel supply which resulted in fuel exhaustion.NTSB BFO89LA049Accident · No injuriesLimited investigationFinal reportBell 47J · Fruitland, MDPoor judgement of the pilot by flying, while physically impaired by alcohol, and his misjudgement of clearance between the helicopter and the structure. The dark night and object (structure) were considered to be contributing factors.NTSB SEA89LA098Accident · Serious injuriesLimited investigationFinal reportBell 47G-2 · Buena, WAThe pilot's failure to maintain an adequate visual lookout and clearance to avoid the power lines.