NTSB investigations: Lycoming VO-435 series, 1992
10 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\") = 1992
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") = 1992
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 MIA93LA027Accident · Minor injuriesLimited investigationFinal reportBell 47-G5A · Belle Glade, FLThe improper in flight decision of the pilot in command to attempt an agricultural turn with insufficient altitude to accomplish the maneuver. Contributing to the accident was the pilot's overconfidence in his abilities.NTSB LAX92LA378Accident · No injuriesLimited investigationFinal reportTexas Helicopter OH-13E/M74 · Chandler, AZThe pilot's misjudging the performance and weight and balance data of the helicopter prior to departure. Contributing to the accident was a failure of the pilot to jettison the chemical load.NTSB FTW92DPG15Accident · No injuriesFinal reportBell-Transworld 47G-2 · Birdeye, ARFuel contamination. A factor was the high density altitude.NTSB ATL92LA160Accident · Serious injuriesLimited investigationFinal reportBell 47G-2 · Slocomb, ALA hard landing due to a power loss from fuel exhaustion. A factor in the accident was the lack of sustable terrain for the landing.NTSB LAX92LA278Accident · Minor injuriesLimited investigationFinal reportBell 47G5 · Mesa, AZA partial loss of engine power due to unknown reason (s). Factors in this accident were 1) low altitude when the partial loss of power occurred 2) low rotor RPM as a result of the loss of power, and 3) the pilot not being able to take remedial action due to…NTSB MIA92T#A01Accident · No injuriesClass 3Final reportContinental Copters Tomcat MK6B · Punta Gorda, FLNTSB LAX92LA262Accident · Serious injuriesLimited investigationFinal reportBell 47-G5A · Pago Pago (Pacific Ocean)The pilot's inadequate preflight inspection in failing to ensure that all skid tiedowns were removed prior to the attempted takeoff.NTSB FTW92LA159Accident · No injuriesLimited investigationFinal reportBell 47G-2 · Danbury, TXThe failure of the landing gear skid due to internal corrosion. A factor was the soft ground.NTSB BFO92LA062Accident · No injuriesLimited investigationFinal reportContinental Copters MK6B · Middleboro, MAThe pilot's failure to release a tie down strap from the helicopter's skid during the preflight.NTSB CHI92LA137Accident · Serious injuriesLimited investigationFinal reportBell 47-G2A · Dousman, WIThe in-flight loss of the swash plate drive link bolt which allowed the swash plate drive assembly to disconnect.