# NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164B, 2014

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 WPR14CA293](https://openairdocs.org/ntsb/WPR14CA293.md): Grumman Acft ENG Cor-Schweizer G 164B · Marysville, CA · Accident · No injuries · Data collection · Final report · Jul 14, 2014 · N48475 · Substantial damage
  > The pilot's failure to adequately monitor the environmental conditions to assure the aircraft performance would afford an uneventful takeoff with the loading conditions. Contributing to the accident were the pilot's inability to jettison the load due to the…
- [NTSB CEN14LA358](https://openairdocs.org/ntsb/CEN14LA358.md): Grumman Acft ENG Cor-Schweizer G-164B · Garrison, ND · Accident · No injuries · Limited investigation · Final report · Jul 9, 2014 · N6648Q · Substantial damage
  > Excessive wear between the power turbine shaft and quill shaft spline, which led to the disconnection of the power turbine wheel, an overspeed of the power turbine, and the subsequent loss of engine power. Contributing to the accident was maintenance…
- [NTSB ERA14LA321](https://openairdocs.org/ntsb/ERA14LA321.md): Grumman Acft ENG Cor-Schweizer G 164B · Farmington, DE · Accident · Minor injuries · Limited investigation · Final report · Jun 18, 2014 · N891JC · Substantial damage
  > The pilot's inadequate preflight planning for a takeoff in high-density altitude conditions and his decision to reduce power during the initial climb, which led to the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall.
- [NTSB CEN14LA301](https://openairdocs.org/ntsb/CEN14LA301.md): Grumman Acft ENG Cor-Schweizer G-164B · Lake City, AR · Accident · No injuries · Limited investigation · Final report · Jun 18, 2014 · N993QC · Substantial damage
  > The partial loss of engine power for reasons that could not be determined based on the available evidence.

## 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") = 2014
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3952802'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=3952802&year=2014

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