# NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164B: Collision with terr/obj (non-CFIT)

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 CEN23LA232](https://openairdocs.org/ntsb/CEN23LA232.md): Grumman Acft ENG Cor-Schweizer G-164B · Bloomfield, NE · Accident · No injuries · Class 3 · Limited · Final report · Jun 7, 2023 · N48485 · Substantial damage
  > A partial loss of engine power during takeoff for reasons that could not be determined.
- [NTSB CEN23LA228](https://openairdocs.org/ntsb/CEN23LA228.md): Grumman Acft ENG Cor-Schweizer G-164 · Saffell, AR · Accident · No injuries · Class 4 · Limited · Final report · May 31, 2023 · N8405K · Substantial damage
  > The airplane’s encounter with a dust devil after takeoff, which resulted in a loss of lift, and a subsequent loss of control. Contributing to the accident was the presence of a dust devil in the airplane’s flight path.
- [NTSB CEN23LA202](https://openairdocs.org/ntsb/CEN23LA202.md): Grumman Acft ENG Cor-Schweizer G-164B · Wright, LA · Accident · No injuries · Class 4 · Limited · Final report · May 25, 2023 · N6699Q · Substantial damage
  > The pilot's decision to takeoff with the airplane overloaded which resulted in the airplane settling and subsequently impacting terrain.
- [NTSB WPR23LA120](https://openairdocs.org/ntsb/WPR23LA120.md): Grumman Acft ENG Cor-Schweizer G-164B · Vernalis, CA · Accident · Serious injuries · Class 4 · Limited · Final report · Mar 3, 2023 · N48492 · Substantial damage
  > The pilot’s failure to maintain clearance from a power line during a low-level aerial application flight.
- [NTSB CEN20LA278](https://openairdocs.org/ntsb/CEN20LA278.md): Grumman G164 · Springfield, CO · Accident · 1 fatal · Class 3 · Limited · Final report · Jul 10, 2020 · N6917K · Destroyed
  > The pilot’s loss of visibility in the cockpit due to foam created by the chemicals loaded in the hopper, which resulted in collision with terrain. Contributing to the accident was the combining of chemicals known to produce foam and the pilot’s failure to…
- [NTSB GAA18CA383](https://openairdocs.org/ntsb/GAA18CA383.md): Grumman Acft ENG Cor-Schweizer G 164 · Malin, OR · Accident · No injuries · Data collection · Final report · Jun 27, 2018 · N151QC · Substantial damage
  > The pilot’s misjudgment of the approach and his subsequent exceedance of the airplane’s critical angle of attack during an agricultural application flight, which resulted in an aerodynamic stall and collision with power lines.
- [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 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.
- [NTSB ERA13LA318](https://openairdocs.org/ntsb/ERA13LA318.md): Grumman Acft ENG Cor-Schweizer G-164B · Beaufort, NC · Accident · No injuries · Limited investigation · Final report · Jul 8, 2013 · N6651K · Substantial damage
  > A failure of the right brake for reasons that could not be determined because a postaccident examination of the brake could not be performed.
- [NTSB CEN13LA191](https://openairdocs.org/ntsb/CEN13LA191.md): Grumman Acft ENG Cor-Schweizer G-164B · Beech Grove, AR · Accident · Minor injuries · Limited investigation · Final report · Mar 8, 2013 · N6902K · Substantial damage
  > The pilot’s failure to maintain control of the airplane during the takeoff roll.
- [NTSB WPR11CA261](https://openairdocs.org/ntsb/WPR11CA261.md): Grumman Acft ENG Cor-Schweizer G-164B · Pullman, WA · Accident · Minor injuries · Data collection · Final report · Jun 15, 2011 · N8376K · Substantial damage
  > The pilot's failure to maintain clearance from power lines while maneuvering.
- [NTSB WPR11CA128](https://openairdocs.org/ntsb/WPR11CA128.md): Schweizer G-164B · Buttonwillow, CA · Accident · No injuries · Data collection · Final report · Feb 5, 2011 · N6725K · Substantial damage
  > The pilot's failure to maintain clearance from an irrigation vent pipe.
- [NTSB CEN10CA510](https://openairdocs.org/ntsb/CEN10CA510.md): Grumman Acft ENG Cor-Schweizer G-164B · Basile, LA · Accident · No injuries · Data collection · Final report · Aug 27, 2010 · N63E · Substantial damage
  > The loss of directional control during landing due to failure of the right brake for undetermined reasons.
- [NTSB WPR10LA396](https://openairdocs.org/ntsb/WPR10LA396.md): Grumman G164 · Tracy, CA · Accident · No injuries · Limited investigation · Final report · Aug 11, 2010 · N6781K · Substantial damage
  > A total loss of engine power while maneuvering due to an internal catastrophic failure to the master rod and piston connecting rod links.
- [NTSB WPR10LA212](https://openairdocs.org/ntsb/WPR10LA212.md): Grumman Acft ENG Cor-Schweizer G-164B · Buckeye, AZ · Accident · Minor injuries · Limited investigation · Final report · Apr 22, 2010 · N48455 · Substantial damage
  > A partial loss of engine power during the takeoff roll for undetermined reasons.
- [NTSB WPR10LA139](https://openairdocs.org/ntsb/WPR10LA139.md): Grumman Acft ENG Cor-Schweizer G-164B · Colfax, WA · Accident · No injuries · Limited investigation · Final report · Feb 18, 2010 · N6774Q · Substantial damage
  > A partial loss of engine power due to carburetor ice as a result of the pilot's failure to use carburetor heat.
- [NTSB LAX08CA223](https://openairdocs.org/ntsb/LAX08CA223.md): Grumman Acft Eng G-164B · Patterson, CA · Accident · Minor injuries · Data collection · Final report · Jul 10, 2008 · N6792Q · Substantial damage
  > The pilot's failure to maintain clearance from obstacles while maneuvering.
- [NTSB DFW08CA168](https://openairdocs.org/ntsb/DFW08CA168.md): Grumman G-164 · Tallulah, LA · Accident · Minor injuries · Data collection · Final report · Jun 23, 2008 · N54229 · Substantial damage
  > The pilot's failure to maintain aircraft control. Contributing to the accident was the pilot's failure to maintain adequate airspeed.
- [NTSB LAX08LA177](https://openairdocs.org/ntsb/LAX08LA177.md): Grumman-Schweizer G-164B · Wilder, ID · Accident · Minor injuries · Limited investigation · Final report · Jun 13, 2008 · N48571 · Substantial damage
  > The loss of engine power as a result of failure of the supercharger. Contributing to the accident was the lack of suitable terrain for the forced landing.
- [NTSB LAX08CA082](https://openairdocs.org/ntsb/LAX08CA082.md): Grumman-Schweizer G-164B · Colfax, WA · Accident · No injuries · Data collection · Final report · Mar 22, 2008 · N63D · Substantial damage
  > The pilot's inadequate compensation for the wind conditions, failure to attain and maintain an adequate airspeed that resulted in a stall mush, and, the subsequent failure to maintain terrain and obstacle clearance during the takeoff initial climb.…

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3952802')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '470' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/470/sequence?model=3952802

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