# NTSB investigations: Lycoming TVO-435-GIA, CA

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 LAX08CA229](https://openairdocs.org/ntsb/LAX08CA229.md): Bell 47G-3B-1 · Shafter, CA · Accident · No injuries · Data collection · Final report · Jul 15, 2008 · N1390X · Substantial damage
  > The pilot's failure to maintain adequate altitude while maneuvering. Contributing factors were the failure of the helicopter's lights during the night flight and the effect of that failure on the pilot's visual perception.
- [NTSB LAX96LA263](https://openairdocs.org/ntsb/LAX96LA263.md): Bell 47G3 · Wasco, CA · Accident · No injuries · Limited investigation · Final report · Jul 6, 1996 · N154PG · Substantial damage
  > the pilot's failure to maintain adequate engine rpm during an aerial application flight.
- [NTSB LAX95LA100](https://openairdocs.org/ntsb/LAX95LA100.md): Bell 47G-3B · China Lake, CA · Accident · No injuries · Limited investigation · Final report · Feb 7, 1995 · N73240 · Substantial damage
  > the pilot's misjudgement of the clearance between the main rotor and a tree while maneuvering at low altitude to herd animals.
- [NTSB LAX89DVA03](https://openairdocs.org/ntsb/LAX89DVA03.md): Bell 47G-3B2 · Strathmore, CA · Accident · Serious injuries · Final report · Feb 1, 1989 · N2918W · Destroyed
  > Improper compensation for wind conditions by the pilot, and his failure to maintain clearance from the service truck. Factors relating to the accident were: the unfavorable (variable) and gusty wind conditions and close proximity of the service vehicle.
- [NTSB LAX83FA366](https://openairdocs.org/ntsb/LAX83FA366.md): Bell 47G-3B-1 · S. Lake Tahoe, CA · Accident · Serious injuries · Field investigation · Final report · Jul 31, 1983 · N11102 · Destroyed
  > During takeoff over descending terrain in a mountainous area, the RPM began decaying when the helicopter had accelerated to 40 KTS & was about 75 ft AGL. The plt applied more throttle & increased the collective, then noted that the manifold pressure was…
- [NTSB LAX83LA184](https://openairdocs.org/ntsb/LAX83LA184.md): Bell 47G-3B-1 · Delano, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 8, 1983 · N1397X · Substantial damage
  > The acft collided with a power line and trees while applying pesticide to an orchard. The pilot was flying into the rising sun and failed to see the power line which serviced an agricultural deep well.
- [NTSB LAX80FA132](https://openairdocs.org/ntsb/LAX80FA132.md): Bell 47G3B1 · Los Angeles, CA · Accident · Serious injuries · Closed · Aug 12, 1980 · N1131W · Destroyed
- [NTSB LAX79DUQ28](https://openairdocs.org/ntsb/LAX79DUQ28.md): Bell 47G3B1 · Newhall, CA · Accident · Minor injuries · Closed · May 6, 1979 · N7829S · Substantial damage
- [NTSB OAK78DVG65](https://openairdocs.org/ntsb/OAK78DVG65.md): Bell 47G-3B · Angwin, CA · Accident · No injuries · Closed · Jul 24, 1978 · N73240 · Substantial damage
- [NTSB OAK77DXQ30](https://openairdocs.org/ntsb/OAK77DXQ30.md): Bell 47G3B1 · Rubicon Spring, CA · Accident · Minor injuries · Closed · Jul 31, 1977 · N337RH · Substantial damage
- [NTSB LAX76DVA56](https://openairdocs.org/ntsb/LAX76DVA56.md): Bell 47G3B1 · Coalinga, CA · Accident · No injuries · Closed · Apr 29, 1976 · N73959 · Substantial damage
- [NTSB LAX76DVA21](https://openairdocs.org/ntsb/LAX76DVA21.md): Bell 47G3B1 · Fellows, CA · Accident · No injuries · Closed · Oct 17, 1975 · N3079G · Substantial damage
- [NTSB LAX76AL009](https://openairdocs.org/ntsb/LAX76AL009.md): Bell 47G3B1 · Mt.Baldy, CA · Accident · Serious injuries · Closed · Aug 5, 1975 · N1358X · Substantial damage
- [NTSB OAK76DXQ05](https://openairdocs.org/ntsb/OAK76DXQ05.md): Bell 47G3B1 · Mommoth Lakes, CA · Accident · No injuries · Closed · Jul 8, 1975 · N1358X · Substantial damage
- [NTSB LAX75FVA66](https://openairdocs.org/ntsb/LAX75FVA66.md): Bell 47G3B2 · Bakersfied, CA · Accident · Serious injuries · Closed · May 23, 1975 · N2906W · Destroyed
- [NTSB LAX75FVW12](https://openairdocs.org/ntsb/LAX75FVW12.md): Bell 47G3B1 · Trona, CA · Accident · No injuries · Closed · Jan 9, 1975 · N1359X · Destroyed
- [NTSB OAK75DVA30](https://openairdocs.org/ntsb/OAK75DVA30.md): Bell 47G3B2 · Big Creek, CA · Accident · Minor injuries · Closed · Oct 18, 1974 · N7986J · Destroyed
- [NTSB OAK75DXQ19](https://openairdocs.org/ntsb/OAK75DXQ19.md): Bell 47G3B1 · Soda Sprngs, CA · Accident · No injuries · Closed · Aug 15, 1974 · N7829S · Substantial damage
- [NTSB OAK73FVG48](https://openairdocs.org/ntsb/OAK73FVG48.md): Bell 47G3B1 · Gridley, CA · Accident · No injuries · Closed · Feb 18, 1973 · N73288 · Substantial damage
- [NTSB OAK73DVD01](https://openairdocs.org/ntsb/OAK73DVD01.md): Bell 47 · Monte Rio, CA · Accident · No injuries · Closed · Jul 1, 1972 · N8186J · Substantial damage
- [NTSB OAK72DVA91](https://openairdocs.org/ntsb/OAK72DVA91.md): Bell 47G3B1 · Springville, CA · Accident · No injuries · Closed · Jun 29, 1972 · N3096G · Substantial damage
- [NTSB LAX72DVA70](https://openairdocs.org/ntsb/LAX72DVA70.md): Bell 47G-3B · Lebec, CA · Accident · No injuries · Closed · May 10, 1972 · N1360X · Substantial damage
- [NTSB LAX72FUQ85](https://openairdocs.org/ntsb/LAX72FUQ85.md): Bell 47G-3B · La Canada, CA · Accident · Minor injuries · Closed · May 9, 1972 · N7959J · Destroyed
- [NTSB LAX72FUM19](https://openairdocs.org/ntsb/LAX72FUM19.md): Bell 47G3B1 · Brawley, CA · Accident · Minor injuries · Closed · Feb 24, 1972 · N1332X · Destroyed
- [NTSB LAX71FUQ89](https://openairdocs.org/ntsb/LAX71FUQ89.md): Bell 47G3B1 · Pacoima, CA · Accident · No injuries · Closed · Jun 7, 1971 · N1133W · 2 aircraft · Substantial damage
- [NTSB LAX71AL033](https://openairdocs.org/ntsb/LAX71AL033.md): Bell 47G3B1 · Rim Forest, CA · Accident · 1 fatal · Closed · Dec 1, 1970 · N1126W · Destroyed
- [NTSB OAK71DVA19](https://openairdocs.org/ntsb/OAK71DVA19.md): Bell 47G3B1 · Kernville, CA · Accident · No injuries · Closed · Aug 17, 1970 · N7829S · Substantial damage
- [NTSB LAX70FUG50](https://openairdocs.org/ntsb/LAX70FUG50.md): Bell 47G-3B · Idyllwild, CA · Accident · No injuries · Closed · Jun 25, 1970 · N1301X · Substantial damage
- [NTSB LAX70FUG52](https://openairdocs.org/ntsb/LAX70FUG52.md): Bell 47G3B2 · Wrightwood, CA · Accident · No injuries · Closed · Jun 24, 1970 · N2219W · Substantial damage
- [NTSB OAK70D0160](https://openairdocs.org/ntsb/OAK70D0160.md): Bell 47G3B1 · Bishop, CA · Accident · No injuries · Closed · Oct 7, 1969 · N3096G · Destroyed
- [NTSB LAX70F0070](https://openairdocs.org/ntsb/LAX70F0070-201453.md): Bell 47G3B1 · Siera Madre, CA · Accident · No injuries · Closed · Jul 5, 1969 · N1126W · Substantial damage
- [NTSB OAK69F0150](https://openairdocs.org/ntsb/OAK69F0150.md): Bell 47G3B1 · Chowchilla, CA · Accident · Serious injuries · Closed · Sep 26, 1968 · N3377H · Destroyed
- [NTSB OAK68A0028](https://openairdocs.org/ntsb/OAK68A0028.md): Bell 47G3B1 · S.Lak Tahoe, CA · Accident · Minor injuries · Closed · Sep 16, 1967 · N7829S · Substantial damage
- [NTSB OAK68A0010](https://openairdocs.org/ntsb/OAK68A0010.md): Bell 47G-3B · Clearlake, CA · Accident · No injuries · Closed · Aug 6, 1967 · N73285 · Substantial damage
- [NTSB LAX67A0118](https://openairdocs.org/ntsb/LAX67A0118.md): Bell 47G3B1 · Van Nuys, CA · Accident · No injuries · Closed · Jun 28, 1967 · N1131W · Substantial damage
- [NTSB OAK67A0023](https://openairdocs.org/ntsb/OAK67A0023.md): Bell 47G3B1 · Bridgeport, CA · Accident · No injuries · Closed · Aug 11, 1966 · N337RH · Substantial damage
- [NTSB LAX66A0097](https://openairdocs.org/ntsb/LAX66A0097.md): Bell 47G3B1 · Glendora, CA · Accident · Minor injuries · Closed · Jun 6, 1966 · N3079G · Substantial damage
- [NTSB OAK65A0051](https://openairdocs.org/ntsb/OAK65A0051.md): Bell 47G3B1 · Yreka, CA · Accident · No injuries · Closed · Jan 7, 1965 · N73982 · Substantial damage
- [NTSB UNK64X0473](https://openairdocs.org/ntsb/UNK64X0473.md): Bell 47G3B1 · Little Nway, CA · Accident · 1 fatal · Closed · Feb 5, 1964 · N73909 · Destroyed
- [NTSB UNK64X0270](https://openairdocs.org/ntsb/UNK64X0270.md): Bell 47G3B1 · Shell Beachf, CA · Accident · No injuries · Closed · Jan 18, 1964 · N73919 · 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" = 'CA' 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=CA

---
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.