# NTSB investigations: Lycoming TVO-435-GIA, NV

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 WPR16LA069](https://openairdocs.org/ntsb/WPR16LA069.md): Bell 47G 3B 1 · Carson City, NV · Accident · Minor injuries · Limited investigation · Final report · Feb 13, 2016 · N1181W · Substantial damage
  > The pilot's failure to maintain sufficient main rotor rpm, which resulted in a loss of helicopter control and a dynamic rollover.
- [NTSB GAA16CA055](https://openairdocs.org/ntsb/GAA16CA055.md): Bell 47G · Searchlight, NV · Accident · No injuries · Data collection · Final report · Oct 18, 2015 · N73224 · Substantial damage
  > The pilot's failure to maintain adequate clearance from a tree during hover flight.
- [NTSB LAX08LA097](https://openairdocs.org/ntsb/LAX08LA097.md): Bell 47G-3B-1 · Denio, NV · Accident · No injuries · Limited investigation · Final report · Apr 11, 2008 · N24SD · Substantial damage
  > The pilot's inadvertent hard landing induced by a perceived loss of power and a main transmission anomaly while maneuvering at low altitude.
- [NTSB LAX03TA043](https://openairdocs.org/ntsb/LAX03TA043.md): Bell 47G-3B-1 · Panaca, NV · Accident · No injuries · Final report · Dec 1, 2002 · N48020 · Substantial damage
  > separation of the no. 6 cylinder intake valve head from the valve stem, which resulted in a loss of engine power. The mechanism responsible for the valve failure is unknown.
- [NTSB LAX97TA213](https://openairdocs.org/ntsb/LAX97TA213.md): Bell 47G-3B-1 · Fallon, NV · Accident · No injuries · Final report · Jun 16, 1997 · N1335X · Substantial damage
  > exhaustion of the aircraft's fuel supply, due to improper planning and/or decision. A factor related to the accident was the high density altitude which made a successful autorotative landing unlikely.
- [NTSB SEA89LA116](https://openairdocs.org/ntsb/SEA89LA116.md): Bell 47G3B2A · Dyer, NV · Accident · Minor injuries · Limited investigation · Final report · Jun 22, 1989 · N59414 · Destroyed
  > The pilots poor planning in attempting a hover in undesirable conditions which resulting in the inability to maintain rotor rom. Contributing to the accident was the mountainous terrain and high density alt.
- [NTSB LAX80DXQ11](https://openairdocs.org/ntsb/LAX80DXQ11.md): Bell 47G3B1 · Mina, NV · Accident · No injuries · Closed · Nov 24, 1979 · N11102 · Substantial damage
- [NTSB LAX79DX030](https://openairdocs.org/ntsb/LAX79DX030.md): Bell 47G3B1 · Montello, NV · Accident · No injuries · Closed · Jul 14, 1979 · N1335X · Substantial damage
- [NTSB OAK78FA019](https://openairdocs.org/ntsb/OAK78FA019.md): Bell 47G3B1 · Genoa Peak, NV · Accident · Minor injuries · Closed · Feb 21, 1978 · N1360X · Destroyed
- [NTSB OAK70FVW17](https://openairdocs.org/ntsb/OAK70FVW17.md): Bell 47G3B2 · Las Vegas, NV · Accident · Minor injuries · Closed · Jun 4, 1970 · N4077G · Destroyed
- [NTSB OAK70DXQ14](https://openairdocs.org/ntsb/OAK70DXQ14.md): Bell 47G3B · Fallon, NV · Accident · Minor injuries · Closed · May 30, 1970 · N73244 · Substantial damage
- [NTSB OAK70FXQ12](https://openairdocs.org/ntsb/OAK70FXQ12.md): Bell 47G3B1 · Reno, NV · Accident · No injuries · Closed · May 21, 1970 · N337RH · Substantial damage
- [NTSB OAK69F0318](https://openairdocs.org/ntsb/OAK69F0318.md): Bell 47G3B1 · Las Vegas, NV · Accident · No injuries · Closed · May 11, 1969 · N1335X · Substantial damage

## 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."eventStateOrRegion" = 'NV' 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
```

This list as a web page: https://openairdocs.org/ntsb?engine=41526&state=NV

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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.