# NTSB investigations: Lycoming VO-435 series, AZ

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 WPR23LA006](https://openairdocs.org/ntsb/WPR23LA006.md): Bell 47G2 · Mesa, AZ · Accident · No injuries · Class 3 · Limited · Final report · Oct 1, 2022 · N24067 · Substantial damage
  > A total loss of engine power due to fuel exhaustion.
- [NTSB LAX94LA303](https://openairdocs.org/ntsb/LAX94LA303.md): Bell 47G-2A · Scottsdale, AZ · Accident · No injuries · Limited investigation · Final report · Jul 30, 1994 · N6749D · Substantial damage
  > The pilot's failure to refuel appropriately, the altitude and airspeed at the time the engine stoppage occurred were factors in the accident.
- [NTSB LAX92LA378](https://openairdocs.org/ntsb/LAX92LA378.md): Texas Helicopter OH-13E/M74 · Chandler, AZ · Accident · No injuries · Limited investigation · Final report · Sep 6, 1992 · N38099 · Substantial damage
  > The pilot's misjudging the performance and weight and balance data of the helicopter prior to departure. Contributing to the accident was a failure of the pilot to jettison the chemical load.
- [NTSB LAX92LA278](https://openairdocs.org/ntsb/LAX92LA278.md): Bell 47G5 · Mesa, AZ · Accident · Minor injuries · Limited investigation · Final report · Jul 4, 1992 · N4798R · Destroyed
  > A partial loss of engine power due to unknown reason (s). Factors in this accident were 1) low altitude when the partial loss of power occurred 2) low rotor RPM as a result of the loss of power, and 3) the pilot not being able to take remedial action due to…
- [NTSB LAX86FUM01](https://openairdocs.org/ntsb/LAX86FUM01.md): Bell 47 G-5 · Yuma, AZ · Accident · Minor injuries · Final report · Oct 22, 1985 · N7907S · Destroyed
  > The pilot was hovering after a night takeoff and collided with an electrical power line.
- [NTSB LAX81DUK10](https://openairdocs.org/ntsb/LAX81DUK10.md): Texas Hel OH-13H · Yuma, AZ · Accident · No injuries · Closed · Sep 25, 1981 · N51853 · Substantial damage
- [NTSB LAX81DUK02](https://openairdocs.org/ntsb/LAX81DUK02.md): Bell 47G-5 · Yuma, AZ · Accident · No injuries · Closed · Sep 4, 1981 · N2294W · Substantial damage
- [NTSB LAX81FUJ03](https://openairdocs.org/ntsb/LAX81FUJ03.md): Bell 47G-5 · Roll, AZ · Accident · No injuries · Closed · Oct 3, 1980 · N7869S · Destroyed
- [NTSB LAX80FUK01](https://openairdocs.org/ntsb/LAX80FUK01.md): Bell 47G-5A · Yuma, AZ · Accident · No injuries · Closed · Sep 11, 1980 · N7990J · Destroyed
- [NTSB LAX80FUJ83](https://openairdocs.org/ntsb/LAX80FUJ83.md): Bell 47G-5 · Sommerton, AZ · Accident · Minor injuries · Closed · Jul 25, 1980 · N7907S · Substantial damage
- [NTSB LAX80DUJ43](https://openairdocs.org/ntsb/LAX80DUJ43.md): Bell 47G5 · Somerton, AZ · Accident · No injuries · Closed · Mar 3, 1980 · N2127 · Destroyed
- [NTSB LAX79DUJ18](https://openairdocs.org/ntsb/LAX79DUJ18.md): Bell 47G-5 · Yuma, AZ · Accident · No injuries · Closed · Nov 16, 1978 · N7907S · Substantial damage
- [NTSB LAX79FUJ13](https://openairdocs.org/ntsb/LAX79FUJ13.md): Bell 47G3B · Springerville, AZ · Accident · 1 fatal · Closed · Nov 10, 1978 · N8483E · Destroyed
- [NTSB LAX76DUJ29](https://openairdocs.org/ntsb/LAX76DUJ29.md): Bell 47G-5 · Chandler, AZ · Accident · No injuries · Closed · Sep 8, 1975 · N4099G · Substantial damage
- [NTSB LAX74DUJ49](https://openairdocs.org/ntsb/LAX74DUJ49.md): Bell 47G-5 · Yuma, AZ · Accident · No injuries · Closed · Apr 6, 1974 · N2294W · Substantial damage
- [NTSB LAX74DUJ05](https://openairdocs.org/ntsb/LAX74DUJ05.md): Bell 47G-5 · Yuma, AZ · Accident · No injuries · Closed · Jul 27, 1973 · N2294W · Substantial damage
- [NTSB LAX71FUJ40](https://openairdocs.org/ntsb/LAX71FUJ40.md): Bell 47G-5 · El Mirage, AZ · Accident · Serious injuries · Closed · Oct 24, 1970 · N1375X · Destroyed
- [NTSB LAX68A0003](https://openairdocs.org/ntsb/LAX68A0003.md): Bell 47G-5 · Casa Grande, AZ · Accident · Minor injuries · Closed · Jul 10, 1967 · N1375X · Substantial damage
- [NTSB DEN66A0005](https://openairdocs.org/ntsb/DEN66A0005.md): Bell 47G3B1 · Grand Canyon, AZ · Accident · No injuries · Closed · Aug 5, 1965 · N1182W · 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 c."eventStateOrRegion" = 'AZ' AND c."eventCountry" = 'USA'
  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&state=AZ

---
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.