# NTSB investigations: Lycoming VO-540 series, 1995

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 FTW96LA005](https://openairdocs.org/ntsb/FTW96LA005.md): Bell 47G-4A · Edinburg, TX · Accident · Minor injuries · Limited investigation · Final report · Oct 3, 1995 · N6SR · Substantial damage
  > the pilot's improper takeoff planning which resulted in the loss of conrol. A factor was the gusty crosswind condition.
- [NTSB CHI95LA270](https://openairdocs.org/ntsb/CHI95LA270.md): Bell 47 · Arlington Hts, IL · Accident · Minor injuries · Limited investigation · Final report · Aug 12, 1995 · N4032G · Substantial damage
  > plot misjudged the flare. The factors included the pilot getting too close to the lead helicopter, allowing his airspeed to get too slow, and encountering settling with power.
- [NTSB FTW95LA230](https://openairdocs.org/ntsb/FTW95LA230.md): Hiller UH-12E · Checotah, OK · Accident · Minor injuries · Limited investigation · Final report · Jun 4, 1995 · N4254X · Substantial damage
  > The pilot allowing the helicopter to touchdown improperly. A factor was the erratic running engine.
- [NTSB LAX95LA132](https://openairdocs.org/ntsb/LAX95LA132.md): Hiller UH-12E · Five Points, CA · Accident · No injuries · Limited investigation · Final report · Mar 12, 1995 · N172ET · Substantial damage
  > fuel exhaustion due to the pilot's inattention to the fuel supply.
- [NTSB LAX95LA109](https://openairdocs.org/ntsb/LAX95LA109.md): Hiller UH-12E · Arvin, CA · Accident · No injuries · Limited investigation · Final report · Feb 15, 1995 · N5335V · Substantial damage
  > The seizure of the transmission due to lack of lubrication from a plugged oil supply line.
- [NTSB LAX95LA096](https://openairdocs.org/ntsb/LAX95LA096.md): Hiller UH-12E · Chowchilla, CA · Accident · No injuries · Limited investigation · Final report · Feb 3, 1995 · N9293Z · Destroyed
  > the in-flight failure and separation of the main rotor hub due to a fatigue crack.
- [NTSB FTW95LA105](https://openairdocs.org/ntsb/FTW95LA105.md): Bell 47G-4A · El Indio, TX · Accident · Minor injuries · Limited investigation · Final report · Feb 1, 1995 · N6SR · Destroyed
  > The loss of tail rotor effectiveness. A factor was the gusty right quartering tailwind.

## 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") = 1995
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41534', '41582'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41534&year=1995

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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.