# NTSB investigations: Lycoming VO-540 series, 1975

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 NYC76AN044](https://openairdocs.org/ntsb/NYC76AN044.md): Bell 47J-2 · Conshocken, PA · Accident · No injuries · Closed · Oct 22, 1975 · N3939B · Substantial damage
- [NTSB IAD76FIJ05](https://openairdocs.org/ntsb/IAD76FIJ05.md): Bell 47G4 · Tams Mt, WV · Accident · Serious injuries · Closed · Sep 26, 1975 · N73943 · Substantial damage
- [NTSB SEA7LDYE16](https://openairdocs.org/ntsb/SEA7LDYE16.md): Hiller Acft UH-12E · Randle, WA · Accident · No injuries · Closed · Sep 15, 1975 · N102EH · Destroyed
- [NTSB ANC76AA028](https://openairdocs.org/ntsb/ANC76AA028.md): Bell 47G-4 · Granite Mt., AK · Accident · No injuries · Closed · Aug 27, 1975 · N73279 · Substantial damage
- [NTSB ANC76DAG05](https://openairdocs.org/ntsb/ANC76DAG05.md): Hiller Acft UH-12E · Yakataga, AK · Accident · No injuries · Closed · Jul 2, 1975 · N9792C · Substantial damage
- [NTSB OAK75DVA70](https://openairdocs.org/ntsb/OAK75DVA70.md): Hiller Acft UH-12E · Merced, CA · Accident · No injuries · Closed · Jun 20, 1975 · N105HA · Substantial damage
- [NTSB ANC75AA084](https://openairdocs.org/ntsb/ANC75AA084.md): Hiller Acft UH12-E · Maunetuk River, AK · Accident · No injuries · Closed · May 17, 1975 · N5335V · Substantial damage
- [NTSB MKC75FCJ53](https://openairdocs.org/ntsb/MKC75FCJ53.md): Brantly B305 · Omaha, NE · Accident · No injuries · Closed · May 16, 1975 · N11MR · Destroyed
- [NTSB MIA75FKQ32](https://openairdocs.org/ntsb/MIA75FKQ32.md): Bell 47G4 · Jackson, MS · Accident · Minor injuries · Closed · May 14, 1975 · N1198W · Substantial damage
- [NTSB LAX75AUM24](https://openairdocs.org/ntsb/LAX75AUM24.md): Hiller Acft UH-12E · Seeley, CA · Accident · No injuries · Closed · Apr 30, 1975 · N75204 · Substantial damage
- [NTSB MKC75FCA30](https://openairdocs.org/ntsb/MKC75FCA30.md): Hiller Acft 12E · Charleston, MO · Accident · No injuries · Closed · Apr 20, 1975 · N87600 · Substantial damage
- [NTSB IAD75DIA19](https://openairdocs.org/ntsb/IAD75DIA19.md): Bell 47G4 · Bowie, MD · Accident · No injuries · Closed · Apr 18, 1975 · N420MC · Substantial damage
- [NTSB CHI75DCA06](https://openairdocs.org/ntsb/CHI75DCA06.md): Hiller Acft UH12D · Lebanon, IL · Accident · No injuries · Closed · Apr 15, 1975 · N62417 · Substantial damage
- [NTSB SEA75FYA28](https://openairdocs.org/ntsb/SEA75FYA28.md): Hiller Acft UH-12E · Hammett, ID · Accident · No injuries · Closed · Jan 20, 1975 · N7755 · 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 year(c."eventDate") = 1975
  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=1975

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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.