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

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 CHI97LA204](https://openairdocs.org/ntsb/CHI97LA204.md): Grumman-Schweizer G-164B · Donnelly, MN · Accident · No injuries · Limited investigation · Final report · Jul 7, 1997 · N6633K · Substantial damage
  > undetermined event resulting in the broken connecting rod and cylinder.
- [NTSB CHI96LA186](https://openairdocs.org/ntsb/CHI96LA186.md): Grumman-Schweizer G-164B · Crookston, MN · Accident · No injuries · Limited investigation · Final report · May 25, 1996 · N48518 · Substantial damage
  > catastrophic engine failure.
- [NTSB CHI95LA272](https://openairdocs.org/ntsb/CHI95LA272.md): Grumman G-164 · Wadena, MN · Accident · Minor injuries · Limited investigation · Final report · Aug 13, 1995 · N48611 · Substantial damage
  > the pilot's inattentiveness during the reversal turn, the pilot not maintaining control of the airplane, and the stall/mush encountered by the pilot.
- [NTSB CHI95LA163](https://openairdocs.org/ntsb/CHI95LA163.md): Schweizer G-164B · E. Grand Forks, MN · Accident · No injuries · Limited investigation · Final report · Jun 1, 1995 · N6682K · Substantial damage
  > The pilot's failure to maintain clearance with the wires.
- [NTSB CHI93LA303](https://openairdocs.org/ntsb/CHI93LA303.md): Schweizer G167B · Borup, MN · Accident · No injuries · Limited investigation · Final report · Jul 27, 1993 · N6637Q · Substantial damage
  > the loss of engine power due to a cracked cylinder head.
- [NTSB CHI93LA254](https://openairdocs.org/ntsb/CHI93LA254.md): Grumman G164B · Eldred, MN · Accident · No injuries · Limited investigation · Final report · Jul 13, 1993 · N48518 · Substantial damage
  > the pilot's failure to maintain directional control during the takeoff roll.
- [NTSB CHI85LA265](https://openairdocs.org/ntsb/CHI85LA265.md): Grumman-Schweizer G-164B · Thief River Fl, MN · Accident · No injuries · Limited investigation · Final report · Jul 3, 1985 · N8400K · Destroyed
  > The acft collided with the ground shortly after takeoff about 800 ft from the end of the rwy. The plt stated that at about 5 pt afl the acft stalled and fell into a field off the end of the rwy.
- [NTSB CHI81DER36](https://openairdocs.org/ntsb/CHI81DER36.md): Grumman G-164B · Angus, MN · Accident · No injuries · Closed · May 6, 1981 · N6698K · 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" = 'MN' AND c."eventCountry" = 'USA'
  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&state=MN

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