# NTSB investigations: Lycoming VO-435 series, 1977

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 FTW78FPA08](https://openairdocs.org/ntsb/FTW78FPA08.md): Bell 47J · Addison, TX · Accident · No injuries · Closed · Dec 13, 1977 · N2895B · Substantial damage
- [NTSB FTW78DQD05](https://openairdocs.org/ntsb/FTW78DQD05.md): Bell 47J · El Paso, TX · Accident · No injuries · Closed · Dec 6, 1977 · N2881B · Substantial damage
- [NTSB MIA78DKT08](https://openairdocs.org/ntsb/MIA78DKT08.md): Hiller Acft UH-12D · Miami, FL · Accident · No injuries · Closed · Oct 22, 1977 · N9299Z · Substantial damage
- [NTSB FTW78DRG08](https://openairdocs.org/ntsb/FTW78DRG08.md): Bell 47G-2 · Edinburg, TX · Accident · No injuries · Closed · Oct 20, 1977 · N7888B · Substantial damage
- [NTSB FTW77FPG86](https://openairdocs.org/ntsb/FTW77FPG86.md): Bell 47G2H1 · Mountain View, AR · Accident · No injuries · Closed · Sep 19, 1977 · N38926 · Destroyed
- [NTSB IAD77FKW27](https://openairdocs.org/ntsb/IAD77FKW27.md): Bell 47G2A · Jamestown, TN · Accident · Serious injuries · Closed · Aug 15, 1977 · N2880B · Substantial damage
- [NTSB LAX77FUM34](https://openairdocs.org/ntsb/LAX77FUM34.md): Hiller Acft UH-12E · Calipatria, CA · Accident · No injuries · Closed · Aug 6, 1977 · N62413 · Substantial damage
- [NTSB MIA77FKG51](https://openairdocs.org/ntsb/MIA77FKG51.md): EL Tomcat MK5A · Colquitt, GA · Accident · Minor injuries · Closed · Jul 12, 1977 · N9014T · Destroyed
- [NTSB OAK77FXQ26](https://openairdocs.org/ntsb/OAK77FXQ26.md): Bell 47G-2 · So Lake Tahoe, CA · Accident · Minor injuries · Closed · Jun 27, 1977 · N8406E · Substantial damage
- [NTSB MIA77FKG27](https://openairdocs.org/ntsb/MIA77FKG27.md): EL Tomcat MK5A · Ray City, GA · Accident · Serious injuries · Closed · May 4, 1977 · N3575B · Substantial damage
- [NTSB MIA77DLD51](https://openairdocs.org/ntsb/MIA77DLD51.md): EL Tomcat MK6A · Lake Wales, FL · Accident · Minor injuries · Closed · Apr 19, 1977 · N4774S · Substantial damage
- [NTSB OAK77DVM12](https://openairdocs.org/ntsb/OAK77DVM12.md): Bell 47G2 · King City, CA · Accident · Serious injuries · Closed · Apr 6, 1977 · N6727D · Destroyed
- [NTSB NYC77FHJ13](https://openairdocs.org/ntsb/NYC77FHJ13.md): Bell 47G-2 · Farmingdale, NY · Accident · No injuries · Closed · Mar 15, 1977 · N6733D · Substantial damage
- [NTSB DEN77DQA14](https://openairdocs.org/ntsb/DEN77DQA14.md): Bell 47G-3B · Mccarty, NM · Accident · No injuries · Closed · Jan 22, 1977 · N8483E · 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") = 1977
  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=1977

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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.