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

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.

Page 1 of 9 · 426 cases

## Latest cases

- [NTSB CEN25LA231](https://openairdocs.org/ntsb/CEN25LA231.md): Grumman Acft ENG Cor-Schweizer G-164B · Lockport, LA · Accident · No injuries · Class 3 · Limited · Final report · Jul 1, 2025 · N8834H · Substantial damage
  > The pilot’s inadequate planning for the high density altitude conditions which resulted in reduced airplane performance, climb capability, and subsequent forced landing.
- [NTSB WPR24LA282](https://openairdocs.org/ntsb/WPR24LA282.md): Grumman Acft ENG Cor-Schweizer G-164B · Durham, CA · Accident · Serious injuries · Class 4 · Limited · Final report · Aug 13, 2024 · N6633K · Substantial damage
  > The pilot’s failure to maintain clearance from powerlines, which resulted in a wire strike.
- [NTSB CEN24LA257](https://openairdocs.org/ntsb/CEN24LA257.md): Grumman Acft ENG Cor-Schweizer G-164B · Sedgwick, AR · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 8, 2024 · N6500K · Substantial damage
  > The pilot’s failure to maintain clearance from a power line during the spray pass.
- [NTSB WPR24LA214](https://openairdocs.org/ntsb/WPR24LA214.md): Grumman Acft ENG Cor-Schweizer G-164B · Pleasant Grove, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 25, 2024 · N6793K · Substantial damage
  > The pilot’s delayed recognition of the extent of the airplane’s increased takeoff roll. Contributing to the accident was the pilot’s lack of experience operating the airplane at a high gross weight.
- [NTSB WPR24LA151](https://openairdocs.org/ntsb/WPR24LA151.md): Grumman G164 · Maxwell, CA · Accident · Serious injuries · Class 4 · Limited · Final report · May 12, 2024 · N6612Q · Destroyed
  > The pilot’s failure to ascertain a proper touchdown point and late decision to initiate a go-around, which resulted in a subsequent collision with vegetation.
- [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 WPR23LA212](https://openairdocs.org/ntsb/WPR23LA212.md): Grumman Acft ENG Cor-Schweizer G-164B · Colusa, CA · Accident · Serious injuries · Class 4 · Limited · Final report · Jun 4, 2023 · N6750K · Substantial damage
  > The pilot’s failure to maintain clearance from a power line during a low-level aerial application flight. Contributing to the accident was the pilot’s fatigue.
- [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 CEN23LA212](https://openairdocs.org/ntsb/CEN23LA212.md): Grumman Acft ENG Cor-Schweizer G-164B · Light, AR · Accident · Minor injuries · Class 4 · Limited · Final report · May 29, 2023 · N6678Q · Substantial damage
  > The pilot exceeding the climb capability of the airplane during takeoff which led to it settling into the ground.
- [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 CEN21LA329](https://openairdocs.org/ntsb/CEN21LA329.md): Grumman Acft ENG Cor-Schweizer G-164B · Amana, IA · Accident · No injuries · Class 3 · Limited · Final report · Jul 19, 2021 · N8422K · Substantial damage
  > The loss of engine power for reasons that could not be determined.
- [NTSB CEN21LA296](https://openairdocs.org/ntsb/CEN21LA296.md): Grumman Acft ENG Cor-Schweizer G-164B · Hoxie, AR · Accident · No injuries · Class 4 · Limited · Final report · Jun 29, 2021 · N6611K · Substantial damage
  > The pilot’s failure to ensure an adequate fuel supply for the intended flight.
- [NTSB CEN21LA237](https://openairdocs.org/ntsb/CEN21LA237.md): Grumman G164 · Celina, OH · Accident · Serious injuries · Class 3 · Limited · Final report · May 27, 2021 · N8376K · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN20CA347](https://openairdocs.org/ntsb/CEN20CA347.md): Grumman G164 · Scottsbluff, NE · Accident · Minor injuries · Class 4 · Data collection · Final report · Aug 18, 2020 · N48416 · Substantial damage
  > The pilot’s loss of visual reference during agricultural low-level flight, resulting in collision with power lines.
- [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 ERA19LA267](https://openairdocs.org/ntsb/ERA19LA267.md): Grumman G164 · Berlin, MD · Accident · No injuries · Class 3 · Limited · Final report · Sep 8, 2019 · N8386K · Substantial damage
  > The malfunction of the No. 9 pushrod, which resulted in a total loss of engine power.
- [NTSB WPR18LA189](https://openairdocs.org/ntsb/WPR18LA189.md): Grumman G164B · Colusa, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 9, 2018 · N6696K · Substantial damage
  > Total loss of engine power for reasons that could not be determined based on the available information.
- [NTSB GAA18CA401](https://openairdocs.org/ntsb/GAA18CA401.md): Grumman G164 · Rochelle, IL · Accident · No injuries · Data collection · Final report · Jul 5, 2018 · N6795Q · Substantial damage
  > The pilot’s failure to move the power lever to the proper position before takeoff, which resulted in insufficient airspeed and a subsequent aerodynamic stall.
- [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 CEN18LA226](https://openairdocs.org/ntsb/CEN18LA226.md): Grumman Acft ENG Cor-Schweizer G 164B · Arrey, NM · Accident · Serious injuries · Limited investigation · Final report · Jun 15, 2018 · N6672Q · Substantial damage
  > The pilot's failure to maintain clearance from a hillside during an agricultural application flight while facing the sun.
- [NTSB GAA17CA443](https://openairdocs.org/ntsb/GAA17CA443.md): Grumman Acft ENG Cor-Schweizer G 164B · Berlin, MD · Accident · Minor injuries · Data collection · Final report · Jul 23, 2017 · N48519 · Substantial damage
  > The ground crewman’s failure to visually check the runway before crossing it in a vehicle, which resulted in he and the vehicle being struck by the landing airplane.
- [NTSB GAA17CA267](https://openairdocs.org/ntsb/GAA17CA267.md): Grumman Acft ENG Cor-Schweizer G 164 · Walnut Ridge, AR · Accident · No injuries · Data collection · Final report · May 8, 2017 · N6944K · Substantial damage
  > The pilot’s failure to maintain directional control during the go-around with a tailwind.
- [NTSB ERA16LA242](https://openairdocs.org/ntsb/ERA16LA242.md): Grumman Acft ENG Cor-Schweizer G-164 · Laurel, DE · Accident · No injuries · Limited investigation · Final report · Jul 2, 2016 · N6781K · Substantial damage
  > A total loss of engine power due to an encounter with a bird, which collided with the spray pump fan assembly and subsequently sent blade fragments into the engine compartment, damaging the throttle linkage.
- [NTSB CEN16LA180](https://openairdocs.org/ntsb/CEN16LA180.md): Grumman Acft ENG Cor-Schweizer G 164B · Lyons Point, LA · Accident · Minor injuries · Limited investigation · Final report · May 11, 2016 · N8362K · Substantial damage
  > A total loss of engine power due to debris contamination of the fuel system. Contributing to the accident was the pilot's inadequate preflight inspection.
- [NTSB CEN16LA173](https://openairdocs.org/ntsb/CEN16LA173.md): Grumman Acft ENG Cor-Schweizer G 164B · Iowa, LA · Accident · No injuries · Limited investigation · Final report · May 4, 2016 · N8400K · Substantial damage
  > The pilot's failure to maintain directional control while landing with an inoperative right brake.
- [NTSB ERA16LA130](https://openairdocs.org/ntsb/ERA16LA130.md): Grumman Acft ENG Cor-Schweizer G-164 · Myakka, FL · Accident · No injuries · Limited investigation · Final report · Mar 14, 2016 · N6654K · Substantial damage
  > A total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical anomalies that would have precluded normal operation.
- [NTSB WPR15LA230](https://openairdocs.org/ntsb/WPR15LA230.md): Grumman G164 - B · Princeton, CA · Accident · No injuries · Limited investigation · Final report · Aug 4, 2015 · N48452 · Substantial damage
  > The loss of engine power during an agricultural application flight due to a cylinder failure.
- [NTSB CEN15LA271](https://openairdocs.org/ntsb/CEN15LA271.md): Grumman Acft ENG Cor-Schweizer G 164B · Foster, NE · Accident · Minor injuries · Limited investigation · Final report · Jun 12, 2015 · N48687 · Substantial damage
  > The total loss of engine power during a low-level aerial application flight due to fuel exhaustion following the pilot’s inadequate preflight inspection that led to his assumption that sufficient fuel was on board for the flight based on his reliance on a…
- [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.
- [NTSB CEN13LA551](https://openairdocs.org/ntsb/CEN13LA551.md): Grumman Acft ENG Cor-Schweizer G 164B · Clemville, TX · Accident · No injuries · Limited investigation · Final report · Sep 4, 2013 · N8251K · Substantial damage
  > The uncommanded inflight application of parking brake due to a loose valve, which resulted in a noseover during landing.
- [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 CEN13LA322](https://openairdocs.org/ntsb/CEN13LA322.md): Grumman Acft ENG Cor-Schweizer G-164B · Covington, OK · Accident · No injuries · Limited investigation · Final report · Jun 6, 2013 · N6754Q · Substantial damage
  > The airplane’s failure to climb after takeoff for reasons that could not be determined because postaccident examinations of the engine and airframe did not reveal any anomalies that would have precluded normal operation.
- [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 ERA13LA029](https://openairdocs.org/ntsb/ERA13LA029.md): Grumman Acft ENG Cor-Schweizer G-164B · Edison, GA · Accident · Minor injuries · Limited investigation · Final report · Oct 19, 2012 · N6670K · Substantial damage
  > The total loss of engine power due to the fatigue failure of the k-pin associated with the No. 1 cylinder.
- [NTSB CEN12LA497](https://openairdocs.org/ntsb/CEN12LA497.md): Grumman Acft ENG Cor-Schweizer G-164B · Big Springs, NE · Accident · No injuries · Limited investigation · Final report · Jul 30, 2012 · N6676Q · Substantial damage
  > The total loss of engine power as a result of the pilot inadvertently shutting the engine off. Contributing to the accident was the modification to the engine control layout.
- [NTSB WPR11LA384](https://openairdocs.org/ntsb/WPR11LA384.md): Grumman Acft ENG Cor-Schweizer G-164B · Oakesdale, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 15, 2011 · N6628Q · Substantial damage
  > The pilot's decision to land with a high tailwind, which resulted in a nose-over.
- [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 ERA11LA011](https://openairdocs.org/ntsb/ERA11LA011.md): Grumman G164 · Edison, GA · Accident · No injuries · Limited investigation · Final report · Oct 1, 2010 · N48417 · Substantial damage
  > Leakage of hydraulic fluid from the internal fuselage line fitting, resulting in a subsequent loss of the right brake’s effectiveness.
- [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 WPR10LA413](https://openairdocs.org/ntsb/WPR10LA413.md): Grumman Acft ENG Cor-Schweizer G-164B · Buckeye, AZ · Accident · Serious injuries · Limited investigation · Final report · Aug 19, 2010 · N6607Q · Substantial damage
  > An increase in engine rpm and vibration, which resulted in an aborted takeoff and runway excursion. The reason for the increased engine rpm and vibration could not be determined because of postaccident fire damage.
- [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 CEN10CA426](https://openairdocs.org/ntsb/CEN10CA426.md): Grumman Acft ENG Cor-Schweizer G-164B · Alexandria, LA · Accident · No injuries · Data collection · Final report · Jul 22, 2010 · N6772Q · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CEN10CA402](https://openairdocs.org/ntsb/CEN10CA402.md): Grumman Acft ENG Cor-Schweizer G-164B · Independence, IA · Accident · No injuries · Data collection · Final report · Jul 13, 2010 · N8260K · Substantial damage
  > The pilot's failure to pay attention to the power lines and his subsequent failure to maintain clearance from the corn field during the aerial application flight.
- [NTSB CEN10CA386](https://openairdocs.org/ntsb/CEN10CA386.md): Grumman Acft ENG Cor-Schweizer G-164B · Chillicothe, MO · Accident · No injuries · Data collection · Final report · Jul 9, 2010 · N6513K · Substantial damage
  > The pilot's failure to maintain aircraft control during takeoff.
- [NTSB ERA10CA313](https://openairdocs.org/ntsb/ERA10CA313.md): Grumman Acft ENG Cor-Schweizer G-164B · Mayfield, KY · Accident · Serious injuries · Data collection · Final report · Jun 16, 2010 · N6780K · Substantial damage
  > The pilot's improper recovery from a bounced landing, resulting in a nose-over.

Next page: https://openairdocs.org/ntsb.md?model=3952802&page=2

## 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'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

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

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