# NTSB investigations: Lycoming TVO-435-GIA: In flight collision with object NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. ## Latest cases - [NTSB SEA04LA114](https://openairdocs.org/ntsb/SEA04LA114.md): Bell 47G-3B-1 · Medford, OR · Accident · Serious injuries · Limited investigation · Final report · Jun 23, 2004 · N73909 · Substantial damage > The pilot's failure to maintain clearance from a tree while maneuvering. Trees were a factor. - [NTSB LAX04CA121](https://openairdocs.org/ntsb/LAX04CA121.md): Bell 47-G3B2 · Salome, AZ · Accident · No injuries · Data collection · Final report · Feb 11, 2004 · N8AG · Substantial damage > the pilot's failure to maintain an adequate clearance from trees while approaching the landing zone. - [NTSB CHI98LA198](https://openairdocs.org/ntsb/CHI98LA198.md): Bell 47G · Le Center, MN · Accident · Serious injuries · Limited investigation · Final report · Jun 10, 1998 · N73284 · Destroyed > the pilot's failure to maintain clearance with the wire. A factor associated with the accident was the wire which the helicopter contacted. - [NTSB LAX95LA100](https://openairdocs.org/ntsb/LAX95LA100.md): Bell 47G-3B · China Lake, CA · Accident · No injuries · Limited investigation · Final report · Feb 7, 1995 · N73240 · Substantial damage > the pilot's misjudgement of the clearance between the main rotor and a tree while maneuvering at low altitude to herd animals. - [NTSB CHI93LA305](https://openairdocs.org/ntsb/CHI93LA305.md): Bell 47G-3B · Clarinda, IA · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 1993 · N8480E · Destroyed > The commercial pilot's failure to maintain adequate clearance from obstacles during aerial application maneuvers. - [NTSB MIA90LA125](https://openairdocs.org/ntsb/MIA90LA125.md): Bell 47G-3B-1 · Lake Wales, FL · Accident · Minor injuries · Limited investigation · Final report · May 21, 1990 · N1390X · Destroyed > The pilot's failure to maintain adequate clearance between the main rotor blades and a power line pole while maneuvering during an aerial application flight. - [NTSB SEA89LA175](https://openairdocs.org/ntsb/SEA89LA175.md): Bell 47G3B2 · Monitor, WA · Accident · 1 fatal · Limited investigation · Final report · Sep 18, 1989 · N83111 · Destroyed > The pilot failed to maintain aircraft separation from obstacles on the ground. A factor in the accident was the bright glare from the rising sun. - [NTSB LAX89DVA03](https://openairdocs.org/ntsb/LAX89DVA03.md): Bell 47G-3B2 · Strathmore, CA · Accident · Serious injuries · Final report · Feb 1, 1989 · N2918W · Destroyed > Improper compensation for wind conditions by the pilot, and his failure to maintain clearance from the service truck. Factors relating to the accident were: the unfavorable (variable) and gusty wind conditions and close proximity of the service vehicle. - [NTSB SEA86LA182](https://openairdocs.org/ntsb/SEA86LA182.md): Bell 47G3B1 · Albany, OR · Accident · Serious injuries · Limited investigation · Final report · Jul 29, 1986 · N9417A · Substantial damage > A Bell 47G3B1 crashed into the south santiam river after contacting power lines while on an instructional flight. The CFI (helicopter) plt received serious injuries and the private plt (airplane) helicopter student received minor injuries. The helicopter… - [NTSB ATL86LA138](https://openairdocs.org/ntsb/ATL86LA138.md): Bell 47G-3B · Red Bay, AL · Accident · No injuries · Limited investigation · Final report · May 19, 1986 · N73269 · Substantial damage > The pilot had completed a dispensing operation and was returning to the ag staging area to refuel. As the helicopter hovered towards the parked refueling vehicle, the main rotor blades struck a metal structure attached to the truck. The pilot stated that the… - [NTSB CHI84LA232](https://openairdocs.org/ntsb/CHI84LA232.md): Bell 47G · Fairfax, MN · Accident · Minor injuries · Limited investigation · Final report · Jun 13, 1984 · N501H · Substantial damage > The 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… - [NTSB LAX83LA184](https://openairdocs.org/ntsb/LAX83LA184.md): Bell 47G-3B-1 · Delano, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 8, 1983 · N1397X · Substantial damage > The 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. - [NTSB ATL82DA179](https://openairdocs.org/ntsb/ATL82DA179.md): Bell 47G-3B-1 · Headland, AL · Accident · Minor injuries · Final report · Jun 28, 1982 · N12437 · Substantial damage > The pilot was positioning the aircraft for refueling when the main rotor contacted the fuel meter. There was substantialdamage to the helicopter and minor injuries to the chemical loader. ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41526') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 220)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=41526&occurrence=220 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.