NTSB investigations: Lycoming VO-435 series, MI

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

19642026
NTSB investigations: Lycoming VO-435 series, MI per year, 1964–2026: 11 cases
19641
19651
19661
19721
19741
19761
19851
19882
20031
20121

Latest 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 c.\"eventStateOrRegion\" = 'MI' AND c.\"eventCountry\" = 'USA'
    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.

NTSB CEN13LA086Accident · 1 fatalLimited investigationFinal reportBell 47G-2 · Walkerville, MIThe pilot's failure to maintain altitude while maneuvering, which resulted in a collision with trees. Contributing to the accident was the pilot's decision to fly at a low altitude, which did not provide enough margin to recover from the descent.Dec 1, 2012 · N3755Z · Substantial damageNTSB CHI03LA184Accident · No injuriesLimited investigationFinal reportBell 47G-5A · Sandusky, MIThe failure of the ignition switch leading to an engine power loss in cruise flight and the subsequent high flare during autorotation. Factors contributing to the accident were the pilot's misjudgment of the landing flare and the unsuitable terrain…Jun 28, 2003 · N8413D · Substantial damageNTSB CHI88DET05Accident · No injuriesFinal reportBell 47J · Dowagiac, MIFailure to maintian adequate rotor RPM by the unqualified pilot.Aug 5, 1988 · N2838B · Substantial damageNTSB CHI88DEM05Accident · No injuriesFinal reportBell 47G-2A · Midland, MIThe plt rprtd that before takeoff, he checked the fuel gage & concluded there was enough fuel to dispense his load. However, after spraying out the load, he started to return to the landing site & then the eng lost power from fuel exhaustion. The helicopter…May 31, 1988 · N440TG · Substantial damageNTSB CHI85FA198Accident · 1 fatalField investigationFinal reportBell 47G-2 · Burlington, MIThe helicopter was departing from a trailer which was sloped 5 degs to the left. During takeoff, the left skid lifted off first and the helicopter drifted to the right. The right skid caught on the trailer guides and the helicopter rolled over to the right.May 16, 1985 · N3755J · Substantial damageNTSB CHI76FEC47Accident · Minor injuriesClosedEL Tomcat MK-5A · Blissfield, MIJun 16, 1976 · N9043T · DestroyedNTSB CHI75FEM12Accident · Minor injuriesClosedBell 47G-2 · Paw Paw, MISep 21, 1974 · N7893B · Substantial damageNTSB CHI73FEC08Accident · No injuriesClosedBell 47G-5A · Blissfield, MIAug 28, 1972 · N2988W · Substantial damageNTSB CHI67A0008Accident · Minor injuriesClosedBell 47G-5 · Plymouth, MIJul 21, 1966 · N1315X · Substantial damageNTSB CHI65A0096Accident · No injuriesClosedBell 47G3B · Bridgman, MIMay 11, 1965 · N73231 · Substantial damageNTSB UNK65X0382Accident · Serious injuriesClosedBell 47G2A · Battle Creek, MIOct 22, 1964 · N8458E · Destroyed