# NTSB investigations: Lycoming VO-435 series, 1996

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 LAX97LA006](https://openairdocs.org/ntsb/LAX97LA006.md): Bell 47G-5A · King City, CA · Accident · No injuries · Limited investigation · Final report · Oct 7, 1996 · N8135J · Substantial damage
  > the pilot's failure to maintain adequate rotor rpm during the takeoff initial climb.
- [NTSB CHI97LA004](https://openairdocs.org/ntsb/CHI97LA004.md): Bell 47G-5 · Nunda, SD · Accident · No injuries · Limited investigation · Final report · Oct 6, 1996 · N7925J · Substantial damage
  > failure of maintenance personnel to properly torque the six accessory drive bolts, which resulted in fatigue failure of the undertorqued bolts.
- [NTSB LAX96LA326](https://openairdocs.org/ntsb/LAX96LA326.md): Bell 47-G5 · Riverside, CA · Accident · No injuries · Limited investigation · Final report · Aug 30, 1996 · N57RA · Substantial damage
  > The pilot's inaccurate perception of altitude which resulted in an improper flare and subsequent hard landing, and non use of the landing light.
- [NTSB LAX96LA287](https://openairdocs.org/ntsb/LAX96LA287.md): Bell 47-G5 · Lost Hills, CA · Accident · No injuries · Limited investigation · Final report · Jul 23, 1996 · N7885S · Substantial damage
  > improper installation of the carburetor air box.
- [NTSB FTW96LA229](https://openairdocs.org/ntsb/FTW96LA229.md): Bell 47J · Lakeway, TX · Accident · No injuries · Limited investigation · Final report · May 26, 1996 · N8412E · Substantial damage
  > The pilot's failure to maintain a proper descent rate prior to landing.
- [NTSB FTW96LA121](https://openairdocs.org/ntsb/FTW96LA121.md): Hiller UH-12D · Carrizo Springs, TX · Accident · No injuries · Limited investigation · Final report · Feb 16, 1996 · N67065 · Substantial damage
  > a loss of engine power for undetermined reasons, and the pilot's improper touchdown.
- [NTSB LAX96LA111](https://openairdocs.org/ntsb/LAX96LA111.md): Bell 47G-2A1 · Honiara, Solomon Islands · Accident · 1 fatal · Limited investigation · Final report · Jan 29, 1996 · N6569H · Destroyed
  > the pilot and the ship crew's failure to assure the tie down strap was removed prior to liftoff.

## 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") = 1996
  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
```

This list as a web page: https://openairdocs.org/ntsb?engine=41525&year=1996

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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.