# NTSB investigations: Lycoming TVO-435-GIA, 1983

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 ATL84FA001](https://openairdocs.org/ntsb/ATL84FA001.md): Bell 47G-3B1 · Pliny, WV · Accident · 1 fatal · Field investigation · Final report · Oct 1, 1983 · N1334X · Destroyed
  > The helicopter was being used in the construction of elect transmission lines. A 150-FT longline cable had been utilizedon an earlier flight for lifting external loads. However, there was no reason for the longline to be attached on the accident flight as the…
- [NTSB MKC83FA196](https://openairdocs.org/ntsb/MKC83FA196.md): Bell 47G-3B · Paxton, NE · Accident · Serious injuries · Field investigation · Final report · Aug 18, 1983 · N73248 · Destroyed
  > The plt stated that after landing on a truck platform, he did not decrease rotor RPM & did not lower collective to flat pitch as he was attempting to recover a piece of paper that had fallen to the floor on the right side of the cockpit. As he released the…
- [NTSB LAX83FA366](https://openairdocs.org/ntsb/LAX83FA366.md): Bell 47G-3B-1 · S. Lake Tahoe, CA · Accident · Serious injuries · Field investigation · Final report · Jul 31, 1983 · N11102 · Destroyed
  > During takeoff over descending terrain in a mountainous area, the RPM began decaying when the helicopter had accelerated to 40 KTS & was about 75 ft AGL. The plt applied more throttle & increased the collective, then noted that the manifold pressure was…
- [NTSB DEN83LA154](https://openairdocs.org/ntsb/DEN83LA154.md): Bell 47G-3B-1 Soloy · Townsend, MT · Accident · No injuries · Limited investigation · Final report · Jun 30, 1983 · N1334X · Substantial damage
  > The helicopter made a hard touchdown during an autorotative forced landing after the engine quit. During the landing themain rotor severed the tail boom. The pilot stretched the autorotational glide to reach a hay field and lost main rotor RPM in the process.…
- [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.

## 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 year(c."eventDate") = 1983
  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&year=1983

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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.