# NTSB investigations: Lycoming TVO-435-GIA, 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 LAX04CA121](https://openairdocs.org/ntsb/LAX04CA121.md): Bell 47-G3B2 · Salome, AZ · Accident · No injuries · Data collection · Final report · Feb 11, 2004 · N8AG · Substantial damage
  > the pilot's failure to maintain an adequate clearance from trees while approaching the landing zone.
- [NTSB LAX94LA200](https://openairdocs.org/ntsb/LAX94LA200.md): Bell 47G-3B-1 · Yuma, AZ · Accident · No injuries · Limited investigation · Final report · Apr 17, 1994 · N304JP · Substantial damage
  > an uncommanded engine deceleration to idle due to the improper installation of the throttle arm on the carburetor shaft.
- [NTSB LAX83LA053](https://openairdocs.org/ntsb/LAX83LA053.md): Bell TH-13T · Phoenix, AZ · Accident · Serious injuries · Limited investigation · Final report · Dec 8, 1982 · N3001F · Substantial damage
  > After a practice spray turn, the helicopter collided with the ground during recovery from a descent back into the field. No discrepancies were reported with the airframe, engine or weather conditions. The pilot was quoted as saying he refrained from pulling…
- [NTSB LAX78DUJ67](https://openairdocs.org/ntsb/LAX78DUJ67.md): Bell 47G3B1 · Whiteriver, AZ · Accident · No injuries · Closed · Jun 11, 1978 · N1358X · Substantial damage
- [NTSB LAX74DUJ75](https://openairdocs.org/ntsb/LAX74DUJ75.md): Bell 47G3B1 · Supai, AZ · Accident · No injuries · Closed · Feb 25, 1974 · N1321X · Substantial damage
- [NTSB LAX72FUJ88](https://openairdocs.org/ntsb/LAX72FUJ88.md): Bell 47G3B1 · Gila Bend, AZ · Accident · No injuries · Closed · Mar 24, 1972 · N1333X · Substantial damage
- [NTSB LAX71DUJ06](https://openairdocs.org/ntsb/LAX71DUJ06.md): Bell 47G3B1 · Elfrida, AZ · Accident · No injuries · Closed · Jul 13, 1970 · N1358X · Substantial damage
- [NTSB LAX70A0008](https://openairdocs.org/ntsb/LAX70A0008.md): Bell 47G3B1 · Grnd Canyon, AZ · Accident · 3 fatal · Closed · Jul 30, 1969 · N73909 · Destroyed
- [NTSB LAX69D0357](https://openairdocs.org/ntsb/LAX69D0357.md): Bell 47G3B1 · Grnd Canyon, AZ · Accident · No injuries · Closed · May 21, 1969 · N73909 · Substantial damage
- [NTSB LAX69D0253](https://openairdocs.org/ntsb/LAX69D0253.md): Bell 47G3B1 · Grand Canyon, AZ · Accident · No injuries · Closed · Dec 16, 1968 · N1321X · Substantial damage
- [NTSB LAX69D0033](https://openairdocs.org/ntsb/LAX69D0033.md): Bell 47G3B1 · Alpine, AZ · Accident · No injuries · Closed · Jun 21, 1968 · N73285 · Substantial damage
- [NTSB LAX69F0010](https://openairdocs.org/ntsb/LAX69F0010.md): Bell 47G3B1 · Springervill, AZ · Accident · Minor injuries · Closed · May 22, 1968 · N73965 · Destroyed
- [NTSB LAX68A0020](https://openairdocs.org/ntsb/LAX68A0020.md): Bell 47G3B1 · Gilbert, AZ · Accident · No injuries · Closed · Aug 17, 1967 · N73240 · Substantial damage
- [NTSB LAX68F0086](https://openairdocs.org/ntsb/LAX68F0086.md): Bell 47G3B1 · Marana, AZ · Accident · No injuries · Closed · Aug 2, 1967 · N1181W · Substantial damage
- [NTSB LAX67A0028](https://openairdocs.org/ntsb/LAX67A0028.md): Bell 47G-3B · Chandler, AZ · Accident · No injuries · Closed · Sep 3, 1966 · N8498E · Substantial damage
- [NTSB LAX66A0102](https://openairdocs.org/ntsb/LAX66A0102.md): Bell 47G-3B · Alpine, AZ · Accident · No injuries · Closed · Jun 16, 1966 · N73965 · Substantial damage
- [NTSB DEN66A0074](https://openairdocs.org/ntsb/DEN66A0074.md): Bell 47G-3B · Grand Canyon, AZ · Accident · 1 fatal · Closed · Apr 12, 1966 · N73909 · Destroyed
- [NTSB UNK65X0536](https://openairdocs.org/ntsb/UNK65X0536.md): Bell 47G2 · Yuma, AZ · Accident · Minor injuries · Closed · Nov 2, 1964 · N6712D · 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 ('41526'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41526&state=AZ

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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.