NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164A
652 cases on aircraft the registry lists as Grumman Acft ENG Cor-Schweizer G-164A. 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
| 1971 | 1 |
|---|---|
| 1972 | 11 |
| 1973 | 15 |
| 1974 | 22 |
| 1975 | 31 |
| 1976 | 41 |
| 1977 | 38 |
| 1978 | 41 |
| 1979 | 35 |
| 1980 | 25 |
| 1981 | 25 |
| 1982 | 22 |
| 1983 | 19 |
| 1984 | 24 |
| 1985 | 14 |
| 1986 | 12 |
| 1987 | 18 |
| 1988 | 22 |
| 1989 | 23 |
| 1990 | 11 |
| 1991 | 17 |
| 1992 | 21 |
| 1993 | 17 |
| 1994 | 12 |
| 1995 | 19 |
| 1996 | 15 |
| 1997 | 8 |
| 1998 | 10 |
| 1999 | 7 |
| 2000 | 2 |
| 2001 | 6 |
| 2002 | 5 |
| 2003 | 1 |
| 2004 | 3 |
| 2005 | 10 |
| 2006 | 5 |
| 2007 | 3 |
| 2008 | 5 |
| 2009 | 4 |
| 2010 | 1 |
| 2011 | 6 |
| 2012 | 3 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 3 |
| 2019 | 1 |
| 2020 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 3 |
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 ('3952801'))
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 ('3952801'))
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 ERA25LA004Accident · Serious injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Parsonsburg, MDA total loss of engine power for reasons that were not determined.NTSB WPR24FA213Accident · 1 fatalClass 3 · FieldFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Chamberino, NMAn aerodynamic stall and loss of control for reasons that could not be determined based on the available information.NTSB WPR24LA165Accident · No injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Rome, ORThe pilot’s failure to maintain airplane control during landing.NTSB WPR23LA305Accident · 1 fatalClass 3 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Davis, CAAn inflight loss of control during a low altitude operation for undetermined reasons.NTSB ERA22LA297Accident · Serious injuriesClass 3 · LimitedFinal reportGrumman G-164A · Hopewell Township, NJA partial loss of engine power while maneuvering at low altitude due to a failure of the airplane’s supercharger.NTSB CEN21LA072Accident · No injuriesClass 3 · LimitedFinal reportGrumman G164 · Elton, LAThe loss of engine power, which resulted in a forced landing on unsuitable terrain. The reason for the loss of engine power could not be determined based on available evidence.NTSB WPR20CA159Accident · No injuriesClass 4 · Data collectionFinal reportGrumman G164 · Maxwell, CAThe pilot's delayed decision to abort the takeoff when the airplane was not attaining sufficient airspeed for takeoff and subsequently departed the end of the runway and collided with terrain. Contributing to the accident was the pilot's inadequate preflight…NTSB GAA19CA270Accident · No injuriesData collectionFinal reportGrumman G164 · Lane City, TXThe pilot's failure to maintain clearance from power lines during low-altitude maneuvering.NTSB WPR17LA100Accident · No injuriesLimited investigationFinal reportGrumman G164 · Madera, CAThe pilot’s loss of directional control during takeoff with a quartering tailwind, which resulted in a runway excursion and separation of the right landing gear.NTSB CEN17LA163Accident · No injuriesLimited investigationFinal reportGrumman Schweizer G-164 · Palmer, KSA crack in the cylinder of the radial engine, which resulted in a loss of engine power and a forced landing on unsuitable terrain.NTSB CEN17LA151Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164A · Nome, TXAn in-flight fire for reasons that could not be determined based on available information.NTSB ERA16LA319Accident · Minor injuriesClass 3 · LimitedFinal reportGrumman G164 · Chestertown, MDLoss of engine power due to a failure of the No. 3 cylinder head, which resulted in a forced landing and collision with ground equipment.NTSB CEN16CA277Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G 164A · Topeka, KSThe pilot’s failure to maintain clearance from a wire during an agricultural flight.NTSB GAA16CA200Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G 164 · Madison, KSThe pilot's incorrect brake application during the landing roll, which resulted in a nose over.NTSB WPR16LA082Accident · No injuriesLimited investigationFinal reportGrumman G164 · Juliaetta, IDA partial loss of engine power due to a crack in the No. 2 cylinder.NTSB WPR15LA194Accident · Minor injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164A · Five Points, CAMaintenance personnel’s improper reassembly of the engine during overhaul, which led to the failure of the supercharger-blower due to a lack of lubrication and the subsequent total loss of engine power during takeoff.NTSB GAA15CA113Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G 164A · Bakersfield, CAThe pilot's failure to maintain directional control during the landing roll, resulting in a runway excursion, and a collision with terrain.NTSB WPR15LA160Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164A · Maxwell, CAThe pilot’s improper preflight inspection and fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.NTSB CEN15LA175Accident · Minor injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164A · New Roads, LAThe loss of engine power due to three stuck exhaust valves.NTSB WPR15LA106Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164A · Alfalfa, ORA total loss of engine power after takeoff for reasons that could not be determined, because examination of the engine did not reveal any mechanical anomalies that would have precluded normal operation.NTSB CEN14LA375Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164A · Fairview, KSThe backfire of the engine and its loss of power for reasons that could not be determined based on the available evidence.NTSB CEN13LA422Accident · Serious injuriesLimited investigationFinal reportGrumman Aircraft Cor-Schweizer G-164A · Elmira, MIThe pilot's failure to maintain clearance from a line of trees while applying agricultural product to a field.NTSB CEN12LA513Accident · Minor injuriesLimited investigationFinal reportGrumman Acft ENG Cor G-164A · La Salle, COThe loss of engine power due to the detached distributor rotor.NTSB CEN12LA440Accident · 1 fatalLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Darksville, MOThe pilot did not maintain clearance from a tree line at the completion of an agricultural spray run.NTSB WPR12LA233Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Wilton, CAThe failure of the hopper gate mechanism and subsequent sulfur fire during a low-level maneuver.NTSB CEN11LA610Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Monette, ARThe fracture of the throttle cable in tensile overstress because of wear damage, which resulted in the partial loss of engine power.NTSB CEN11LA563Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Mansfield, SDThe loss of engine power due to debris in the engine air intake system.NTSB CEN11CA497Accident · No injuriesData collectionFinal reportGrumman Schweizer G-164A · North English, IAThe pilot's improper flare which resulted in a hard landing.NTSB WPR11LA238Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Hazelton, IDA total loss of engine power during low-level maneuvering due to an excessively worn carburetor.NTSB CEN11LA335Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Bono, ARA loss of engine power for undetermined reasons.NTSB ERA11CA260Accident · Minor injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Belhaven, NCThe pilot's failure to maintain adequate clearance above crops while performing an aerial application flight.NTSB WPR10LA214Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Madera, CAA loss of engine power for undetermined reasons.NTSB CEN09LA574Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Kimball, NEA loss of engine power due to improper installation of an oil line fitting resulting in oil depletion.NTSB CEN09CA522Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Evansville, WIA jam of the elevator flight control for undetermined reasons.NTSB CEN09CA516Accident · No injuriesData collectionFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Harlan, IAThe pilot's failure to perform accurate weight and balance calculations which resulted in exceeding the maximum takeoff weight and the airplane's climb capability.NTSB WPR09LA270Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Yerington, NVThe pilot's failure to maintain aircraft control while maneuvering during an aerial application flight.NTSB SEA08CA183Accident · Minor injuriesData collectionFinal reportGrumman Acft Eng G-164A · Hazelton, IDThe pilot's inadequate compensation for the tailwind and failure to attain and maintain airspeed, which resulted in an inadvertent stall. The tailwind was a contributing factor.NTSB DEN08CA135Accident · No injuriesData collectionFinal reportGrumman G-164A · Walsh, COThe total failure of a cylinder head assembly. Contributing to the accident was the lack of suitable terrain for a forced landing.NTSB DFW08CA195Accident · Minor injuriesData collectionFinal reportGrumman 164A · Lake Providence, LAThe pilot's failure to maintain control of the airplane while maneuvering during an aerial application. Contributing to the accident was the wind gust.NTSB DEN08CA091Accident · No injuriesData collectionFinal reportGrumman-Schweizer G-164A · East Bernard, TXTwo engine cylinder exhaust valves stuck open for an undetermined reason, resulting in a loss of engine power.NTSB SEA08CA093Accident · Minor injuriesData collectionFinal reportGrumman G-164A · Dayton, WAThe pilot's inadequate compensation for the wind conditions and failure to maintain an adequate airspeed. A contributing factor was the sudden windshift.NTSB CHI07CA250Accident · Minor injuriesData collectionFinal reportGrumman G-164A · Vinton, IAThe pilot failed to maintain clearance from the power line while maneuvering during an aerial application flight. A factor was the power line.NTSB CHI07LA221Accident · Serious injuriesLimited investigationFinal reportGrumman G-164A · Moline, ILFatigue failure of the engine cylinder during cruise flight resulting in a loss of engine power. Additional causes were the pilot's failure to maintain sufficient airspeed and the resulting inadvertent stall during the forced landing. A contributing factor…NTSB DFW07CA131Accident · No injuriesData collectionFinal reportGrumman G-164A · Okarche, OKThe pilot's failure to maintain clearance from an unmarked light fixture.NTSB CHI06CA235Accident · No injuriesData collectionFinal reportGrumman-Schweizer G-164A · Gering, NEThe pilot's failure to maintain clearance from the power lines during the aerial application flight. Factors were the low altitude and power lines.NTSB NYC06LA180Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Vineland, NJA loss of engine power due to foreign object damage for undetermined reasons. Contributing to the accident was the furrowed field.NTSB CHI06CA195Accident · No injuriesData collectionFinal reportGrumman G-164A · Lakeview, MIA loss of engine power for undetermined reasons. A factor associated with the accident was the low altitude at which the airplane was being operated when the loss of engine power occurred.NTSB DEN06CA088Accident · Minor injuriesData collectionFinal reportGrumman-Schweizer G-164A · Cokeville, WYthe pilot's failure to maintain directional control resulting in a ground loop. Contributing factors included the high winds and crosswind.NTSB ANC06CA039Accident · No injuriesData collectionFinal reportGrumman-Schweizer G-164A · Dixon, CAThe pilot's failure to attain altitude/clearance during takeoff/initial climb, which resulted in an in-flight collision with terrain. Factors associated with the accident were the pilot's inadequate evaluation of the weather, and unfavorable winds.NTSB CHI05LA229Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Marshalltown, IAThe loss of engine power for undetermined reasons during initial climb and the unsuitable landing area encountered by the pilot during a forced landing.