NTSB investigations: Lycoming TVO-435-GIA, MN

6 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

19842026
NTSB investigations: Lycoming TVO-435-GIA, MN per year, 1984–2026: 6 cases
19841
19901
19911
19981
20081
20131

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\" = 'MN' 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 ('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.

NTSB CEN13FA357Accident · 1 fatalField investigationFinal reportBell 47G-3B-1 · Maplewood, MNThe loss of helicopter control for reasons that could not be determined because an examination of the helicopter and its systems revealed no malfunctions or failures that would have precluded normal operation.Jun 19, 2013 · N5024N · DestroyedNTSB CHI08CA254Accident · No injuriesData collectionFinal reportBell 47G-3B · Kenyon, MNThe pilot's inadequate preflight planning which resulted in the helicopter settling with power.Aug 14, 2008 · N47AH · Substantial damageNTSB CHI98LA198Accident · Serious injuriesLimited investigationFinal reportBell 47G · Le Center, MNthe pilot's failure to maintain clearance with the wire. A factor associated with the accident was the wire which the helicopter contacted.Jun 10, 1998 · N73284 · DestroyedNTSB CHI91DER05Accident · No injuriesFinal reportBell 47G3B1 · Lasalle, MNThe pilot's failure to maintain adequate clearance from the terrain. A related factor is the pilot's misjudged altitude above the crop.Jun 11, 1991 · N73284 · Substantial damageNTSB CHI90DER03Accident · No injuriesFinal reportBell 47G3B1 · Coon Rapids, MNThe pilot-in-command's inaccurate fuel consumption calculations and misjudgement of his fuel supply.Jul 31, 1990 · N4990H · Substantial damageNTSB CHI84LA232Accident · Minor injuriesLimited investigationFinal reportBell 47G · Fairfax, MNThe helicopter plt turned at the end of a spray run & the acft collided with a power line. He said that because of a quartering tailwind, the helicopter was in a nose high attitude & the tail rotor hit a wire. The plt was able to make an autorotation after…Jun 13, 1984 · N501H · Substantial damage