NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164B
426 cases on aircraft the registry lists as Grumman Acft ENG Cor-Schweizer G-164B. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 1976 | 4 |
|---|---|
| 1977 | 16 |
| 1978 | 24 |
| 1979 | 13 |
| 1980 | 23 |
| 1981 | 23 |
| 1982 | 14 |
| 1983 | 17 |
| 1984 | 16 |
| 1985 | 5 |
| 1986 | 8 |
| 1987 | 11 |
| 1988 | 11 |
| 1989 | 14 |
| 1990 | 14 |
| 1991 | 13 |
| 1992 | 10 |
| 1993 | 14 |
| 1994 | 18 |
| 1995 | 14 |
| 1996 | 7 |
| 1997 | 4 |
| 1998 | 11 |
| 1999 | 9 |
| 2000 | 9 |
| 2001 | 10 |
| 2002 | 7 |
| 2003 | 1 |
| 2004 | 6 |
| 2005 | 6 |
| 2006 | 7 |
| 2007 | 2 |
| 2008 | 6 |
| 2009 | 4 |
| 2010 | 13 |
| 2011 | 3 |
| 2012 | 2 |
| 2013 | 4 |
| 2014 | 4 |
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 3 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 1 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB CEN25LA231Accident · No injuriesClass 3 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Lockport, LAThe pilot’s inadequate planning for the high density altitude conditions which resulted in reduced airplane performance, climb capability, and subsequent forced landing.NTSB WPR24LA282Accident · Serious injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Durham, CAThe pilot’s failure to maintain clearance from powerlines, which resulted in a wire strike.NTSB CEN24LA257Accident · Minor injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Sedgwick, ARThe pilot’s failure to maintain clearance from a power line during the spray pass.NTSB WPR24LA214Accident · No injuriesClass 3 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Pleasant Grove, CAThe 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 WPR24LA151Accident · Serious injuriesClass 4 · LimitedFinal reportGrumman G164 · Maxwell, CAThe 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 CEN23LA232Accident · No injuriesClass 3 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Bloomfield, NEA partial loss of engine power during takeoff for reasons that could not be determined.NTSB WPR23LA212Accident · Serious injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Colusa, CAThe 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 CEN23LA228Accident · No injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164 · Saffell, ARThe 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 CEN23LA212Accident · Minor injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Light, ARThe pilot exceeding the climb capability of the airplane during takeoff which led to it settling into the ground.NTSB CEN23LA202Accident · No injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Wright, LAThe pilot's decision to takeoff with the airplane overloaded which resulted in the airplane settling and subsequently impacting terrain.NTSB WPR23LA120Accident · Serious injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Vernalis, CAThe pilot’s failure to maintain clearance from a power line during a low-level aerial application flight.NTSB CEN21LA329Accident · No injuriesClass 3 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Amana, IAThe loss of engine power for reasons that could not be determined.NTSB CEN21LA296Accident · No injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Hoxie, ARThe pilot’s failure to ensure an adequate fuel supply for the intended flight.NTSB CEN21LA237Accident · Serious injuriesClass 3 · LimitedFinal reportGrumman G164 · Celina, OHA loss of engine power for undetermined reasons.NTSB CEN20CA347Accident · Minor injuriesClass 4 · Data collectionFinal reportGrumman G164 · Scottsbluff, NEThe pilot’s loss of visual reference during agricultural low-level flight, resulting in collision with power lines.NTSB CEN20LA278Accident · 1 fatalClass 3 · LimitedFinal reportGrumman G164 · Springfield, COThe 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 ERA19LA267Accident · No injuriesClass 3 · LimitedFinal reportGrumman G164 · Berlin, MDThe malfunction of the No. 9 pushrod, which resulted in a total loss of engine power.NTSB WPR18LA189Accident · No injuriesClass 3 · LimitedFinal reportGrumman G164B · Colusa, CATotal loss of engine power for reasons that could not be determined based on the available information.NTSB GAA18CA401Accident · No injuriesData collectionFinal reportGrumman G164 · Rochelle, ILThe 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 GAA18CA383Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G 164 · Malin, ORThe 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 CEN18LA226Accident · Serious injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164B · Arrey, NMThe pilot's failure to maintain clearance from a hillside during an agricultural application flight while facing the sun.NTSB GAA17CA443Accident · Minor injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G 164B · Berlin, MDThe 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 GAA17CA267Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G 164 · Walnut Ridge, ARThe pilot’s failure to maintain directional control during the go-around with a tailwind.NTSB ERA16LA242Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164 · Laurel, DEA 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 CEN16LA180Accident · Minor injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164B · Lyons Point, LAA 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 CEN16LA173Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164B · Iowa, LAThe pilot's failure to maintain directional control while landing with an inoperative right brake.NTSB ERA16LA130Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164 · Myakka, FLA 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 WPR15LA230Accident · No injuriesLimited investigationFinal reportGrumman G164 - B · Princeton, CAThe loss of engine power during an agricultural application flight due to a cylinder failure.NTSB CEN15LA271Accident · Minor injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164B · Foster, NEThe 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 WPR14CA293Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G 164B · Marysville, CAThe 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 CEN14LA358Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Garrison, NDExcessive 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 ERA14LA321Accident · Minor injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164B · Farmington, DEThe 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 CEN14LA301Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Lake City, ARThe partial loss of engine power for reasons that could not be determined based on the available evidence.NTSB CEN13LA551Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164B · Clemville, TXThe uncommanded inflight application of parking brake due to a loose valve, which resulted in a noseover during landing.NTSB ERA13LA318Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Beaufort, NCA failure of the right brake for reasons that could not be determined because a postaccident examination of the brake could not be performed.NTSB CEN13LA322Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Covington, OKThe 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 CEN13LA191Accident · Minor injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Beech Grove, ARThe pilot’s failure to maintain control of the airplane during the takeoff roll.NTSB ERA13LA029Accident · Minor injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Edison, GAThe total loss of engine power due to the fatigue failure of the k-pin associated with the No. 1 cylinder.NTSB CEN12LA497Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Big Springs, NEThe 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 WPR11LA384Accident · Minor injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Oakesdale, WAThe pilot's decision to land with a high tailwind, which resulted in a nose-over.NTSB WPR11CA261Accident · Minor injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Pullman, WAThe pilot's failure to maintain clearance from power lines while maneuvering.NTSB WPR11CA128Accident · No injuriesData collectionFinal reportSchweizer G-164B · Buttonwillow, CAThe pilot's failure to maintain clearance from an irrigation vent pipe.NTSB ERA11LA011Accident · No injuriesLimited investigationFinal reportGrumman G164 · Edison, GALeakage of hydraulic fluid from the internal fuselage line fitting, resulting in a subsequent loss of the right brake’s effectiveness.NTSB CEN10CA510Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Basile, LAThe loss of directional control during landing due to failure of the right brake for undetermined reasons.NTSB WPR10LA413Accident · Serious injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Buckeye, AZAn 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 WPR10LA396Accident · No injuriesLimited investigationFinal reportGrumman G164 · Tracy, CAA total loss of engine power while maneuvering due to an internal catastrophic failure to the master rod and piston connecting rod links.NTSB CEN10CA426Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Alexandria, LAThe loss of engine power for undetermined reasons.NTSB CEN10CA402Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Independence, IAThe 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 CEN10CA386Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Chillicothe, MOThe pilot's failure to maintain aircraft control during takeoff.NTSB ERA10CA313Accident · Serious injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Mayfield, KYThe pilot's improper recovery from a bounced landing, resulting in a nose-over.