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NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164A, TX

60 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.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19712026

NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164A, TX per year, 1971–2026: 60 cases
1971	1
1973	1
1974	4
1975	3
1976	5
1977	4
1978	3
1979	4
1980	5
1981	4
1982	2
1983	2
1984	1
1986	1
1987	1
1988	2
1989	1
1990	1
1991	1
1992	2
1993	3
1994	1
1997	2
1998	2
1999	1
2008	1
2017	1
2019	1

Where

Latest cases

Query with 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" = 'TX' 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 ('3952801')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

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.\"eventStateOrRegion\" = 'TX' 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 ('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."eventStateOrRegion" = 'TX' 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 ('3952801'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

Run 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 GAA19CA270Accident · No injuriesData collectionFinal reportGrumman G164 · Lane City, TXThe pilot's failure to maintain clearance from power lines during low-altitude maneuvering.May 15, 2019 · N4865 · Destroyed 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.Apr 8, 2017 · N971QC · Destroyed 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.May 20, 2008 · N5083 · Substantial damage NTSB FTW99LA252Accident · Minor injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Seminole, TXThe pilot's failure to maintain clearance with powerlines. A factor was the pilot's diverted attention to the light bar for the electronic swath guidance system installed in the airplane.Sep 3, 1999 · N7362 · Destroyed NTSB FTW98LA292Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Lubbock, TXThe loss of engine power due to the collapsed of the engine induction air ducting. Factors were the inadequate maintenance inspection and the lack of suitable terrain for the pilot to execute the forced landing.Jul 2, 1998 · N8866H · Substantial damage NTSB FTW98LA258Accident · Minor injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Lazbuddie, TXThe loss of engine power for undetermined reasons. A factor was the lack of suitable terrain for the forced landing.Jun 6, 1998 · N5087 · Substantial damage NTSB FTW97LA336Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Muleshoe, TXfailure of the pilot to see the standpipe in time to avoid an accident (inadequate visual lookout), and his failure to maintain clearance with electrical wires, while maneuvering during an aerial application flight.Aug 30, 1997 · N9807 · Substantial damage NTSB FTW97LA212Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Woodsboro, TXThe loss of engine power as result of fuel exhaustion due to the pilot's failure to refuel the airplane. A factor was the unsuitable terrain available for the pilot to execute the forced landing.May 31, 1997 · N842KG · Substantial damage NTSB FTW94LA145Accident · Serious injuriesLimited investigationFinal reportGrumman G-164A · El Campo, TXThe partial loss of engine power due to one magneto being weak and the other magneto arcing inside its case. A factor was the lack of suitable terrain for the forced landing.May 7, 1994 · N9682 · Destroyed NTSB FTW93LA239Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Garwood, TXThe partial power loss for undetermined reasons. A factor was the lack of suitable terrain onto which a forced landing could be executed.Aug 13, 1993 · N7993 · Substantial damage NTSB FTW93LA173Accident · 1 fatalLimited investigationFinal reportGrumman G-164A · Ganado, TXThe pilot's failure to maintain clearance with the power linesJun 2, 1993 · N6752Q · Destroyed NTSB FTW93LA144Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Anahuac, TXUndetermined.Apr 30, 1993 · N7485 · Substantial damage NTSB FTW92LA094Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Garwood, TXThe loss of engine power due to rocker arm failure. A factor was the unsuitable terrain.Mar 18, 1992 · N5378 · Substantial damage NTSB FTW92LA085Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Valley Mills, TXPower loss due inadequate maintenance and the resultant multiple maintenance discrepancies. A factor was the wet terrain.Mar 9, 1992 · N9828 · Substantial damage NTSB FTW91DRG03Accident · Serious injuriesFinal reportGrumman G-164A · Weslaco, TXFailure of the pilot to maintain clearance.Jun 8, 1991 · N7445 · Destroyed NTSB FTW90DRA05Accident · No injuriesFinal reportGrumman 164-B · Garwood, TXThe power loss due to super charger impeller failure.May 25, 1990 · N9982 · Destroyed NTSB FTW89DRG05Accident · No injuriesFinal reportGrumman-Schweizer G-164 · Edcouch, TXLoss of engine power for an undetermined reason. The corn crop was a contributing factor.May 6, 1989 · N4591 · Substantial damage NTSB FTW88DRA12Accident · Minor injuriesFinal reportGrumman G-164A · Winnie, TXAcft was substantially damaged when it struck a ditch and flipped over after settling to the ground following t/o from a pvt ag strip. The plt stated that during the t/o, the wind shifted to a quartering tailwind and that he attempted to dump his load because…May 24, 1988 · N5374 · Substantial damage NTSB FTW88DRG07Accident · No injuriesFinal reportGrumman G-164A · Alamo, TXThe pilot experienced a total loss of engine power during climb when he made his initial power reduction. The power loss was accompanied by a loud bang. A severe postaccident ground fire melted a large portion of the engine. A partial engine teardown was…Feb 26, 1988 · N4647 · Destroyed NTSB FTW87DQG03Accident · Serious injuriesFinal reportSchweizer G-164-A · Seminole, TXDuring the flare for landing on a county road the aircraft collided with a pickup truck traveling in same direction as the aircraft. The driver of the pickup sustained serious injuries. The pilot was not injured. The pilot stated he did not see the pickup…Aug 25, 1987 · N6888Q · Substantial damage NTSB FTW86FA066Accident · 2 fatalField investigationFinal reportGrumman G164A · Hankamer, TXTwo Grumman ag cats operated by the same air service collided in mid air. The accident occurred as one was departing and the other was returning to a temporary air strip adjacent to the fields they were fertilizing. Witnesses indicated that both pilot…Apr 15, 1986 · N8751H · 2 aircraft · Destroyed NTSB FTW84LA194Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Beaumont, TXThe acft stalled during a turn around between swath runs. The pilot stated that he was unable to recover because there was not sufficient alt.Apr 11, 1984 · N9978 · Destroyed NTSB FTW83LA320Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Dayton, TXThe agricultural acft crashed 100 ft short of the rwy after the engine failed. The plt said the engine lost power and RPM so he decided to return to the airstrip after dumping his chemical load. The engine failed completely short of the rwy. The acft hit a…Jul 4, 1983 · N48374 · Substantial damage NTSB FTW83LA205Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Anahuac, TXThe acft groundlooped in ruts during a forced landing after the engine quit. A ground fire destroyed the acft. The acft had approached the field to be sprayed and a witness on the ground said the engine sounded like it was being throttled back. When the pilot…Apr 25, 1983 · N4564 · Destroyed NTSB FTW82DA277Accident · Serious injuriesFinal reportChampion 7AC · Justin, TXThe aerial application aircraft was returning to land when it collided with another aircraft that was on a straight-in final approach. The pilot of the other aircraft stated that he was below and ahead at about 150 feet AGL when the collision occurred. Both…Jul 12, 1982 · N2434E · 2 aircraft · Destroyed NTSB FTW82DA205Accident · No injuriesFinal reportGrumman G-164A · Angleton, TXWhile concentrating on his flagger, the pilot misjudged his altitude and allowed the aircraft to collide with a levee. The pilot then dumped his load and made an emergency landing, during which time, the aircraft nosed over.Jun 1, 1982 · N8974H · Destroyed NTSB FTW81DPD32Accident · No injuriesClosedGrumman G-164A · Vernon, TXJul 22, 1981 · N48554 · Substantial damage NTSB FTW81FRA36Accident · No injuriesClosedGrumman G-164A · Garwood, TXMay 26, 1981 · N9717 · Destroyed NTSB FTW81FRA25Accident · No injuriesClosedGrumman G-164A · Rosharon, TXApr 27, 1981 · N8971H · Destroyed NTSB FTW81DRG29Accident · No injuriesClosedGrumman G-164A · San Saba, TXApr 1, 1981 · N8508H · Substantial damage NTSB FTW80FRA51Accident · No injuriesClosedGrumman G-164A · Winnie, TXSep 11, 1980 · N8751H · Substantial damage NTSB FTW80DRA42Accident · No injuriesClosedGrumman G-164A · Winnie, TXJul 3, 1980 · N7960 · Substantial damage NTSB FTW80DRA32Accident · No injuriesClosedGrumman G-164A · Beaumont, TXMay 22, 1980 · N6891Q · Substantial damage NTSB FTW80DRA26Accident · No injuriesClosedGrumman G-164A · La Ward, TXMay 6, 1980 · N7235 · Destroyed NTSB FTW80DRD28Accident · No injuriesClosedGrumman G-164A · Deweyville, TXMay 4, 1980 · N4546 · Destroyed NTSB FTW79FQG56Accident · Minor injuriesClosedGrumman G-164A · Hale Center, TXAug 24, 1979 · N4940 · Substantial damage NTSB FTW79DRA32Accident · No injuriesClosedGrumman G-164A · Arcola, TXJun 29, 1979 · N8773H · Substantial damage NTSB FTW79DRG40Accident · No injuriesClosedGrumman G-164A · Raymondville, TXJun 13, 1979 · N4598 · Substantial damage NTSB FTW79DRA22Accident · Minor injuriesClosedGrumman G-164A · Bay City, TXMay 15, 1979 · N6642Q · Destroyed NTSB FTW78DRG67Accident · No injuriesClosedGrumman G-164A · Harlingen, TXAug 24, 1978 · N5437 · Substantial damage NTSB FTW78DRA27Accident · No injuriesClosedGrumman G-164A · Alvin, TXJun 12, 1978 · N9935 · Destroyed NTSB FTW78DRA16Accident · No injuriesClosedGrumman G-164A · El Campo, TXApr 26, 1978 · N6865Q · Substantial damage NTSB FTW77DRG55Accident · Minor injuriesClosedGrumman G-164A · San Benito, TXJun 15, 1977 · N7998 · Destroyed NTSB FTW77DRA25Accident · No injuriesClosedGrumman G-164A · Garwood, TXMay 31, 1977 · N4309 · Destroyed NTSB FTW77DRA21Accident · No injuriesClosedGrumman G-164A · Danbury, TXMay 9, 1977 · N7985 · Substantial damage NTSB FTW77DRA19Accident · No injuriesClosedGrumman G-164A · Winnie, TXApr 18, 1977 · N5470 · Substantial damage NTSB FTW76DQG95Accident · No injuriesClosedGrumman G-164A · Olton, TXAug 10, 1976 · N7358 · Substantial damage NTSB FTW76DRA39Accident · No injuriesClosedGrumman G-164 · Raywood, TXMay 20, 1976 · N8773H · Substantial damage NTSB FTW76DRA43Accident · No injuriesClosedGrumman G-164A · El Campo, TXMay 19, 1976 · N5449 · Substantial damage NTSB FTW76DRA30Accident · No injuriesClosedGrumman G-164A · Damon, TXApr 10, 1976 · N5408 · Substantial damage