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

28 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.

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Cases per year

19772026

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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 ('3952802')) 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 ('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."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 ('3952802'))
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 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.Sep 4, 2013 · N8251K · Substantial damage NTSB FTW01LA119Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Rosharon, TXthe pilot's failure to maintain aircraft control while maneuvering. Factors were the weather conditions and the muddy terrain.May 15, 2001 · N6778K · Substantial damage NTSB FTW99LA134Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G164-B · Garwood, TXThe pilot's failure to maintain adequate airspeed which resulted in an inadvertent stall. A related factor was the high density altitude.May 8, 1999 · N6771K · Destroyed NTSB FTW95LA392Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Springlake, TXThe loss of engine power due to the uncontained failure of the third stage turbine wheel. A factor was the lack of suitable terrain for the forced landing.Jun 8, 1995 · N211JM · Substantial damage NTSB FTW94LA266Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Matagorda, TXA power loss due to cracked engine cylinder. A factor was the lack of suitable terrain for the forced landing.Aug 10, 1994 · N8251K · Destroyed NTSB FTW90DPA01Accident · No injuriesFinal reportGrumman G-164B · Bonham, TXA power loss for undetermined reasons. A factor was the lack of suitable terrain for the forced landing.Apr 4, 1990 · N48372 · Substantial damage NTSB FTW89DRA08Accident · Minor injuriesFinal reportGrumman-Schweizer G-164B · Anahuac, TXFailure of the supercharger bearing. The dirt bank was a contributing factor.Jul 18, 1989 · N6633Q · Destroyed NTSB FTW89DRA06Accident · No injuriesFinal reportGrumman G-164B · Lissie, TXA bird strike which resulted in foreign object damage to the engine compressor. A berm and the lack of suitable terrain for a forced landing were contributing factors.Jun 1, 1989 · N6822Q · Substantial damage NTSB FTW88DRA14Accident · No injuriesFinal reportGrumman G-164B · College Port, TXAcft was substantially damaged when it executed an off-arpt landing following takeoff FR0M a wet sod strip on an ag flt. The plt stated that he was taking off to the north and that during the t/o roll the wind shifted to out of the south. He further stated…Jun 6, 1988 · N6615Q · Substantial damage NTSB FTW88DRA07Accident · No injuriesFinal reportGrumman G-164B · Lissie, TXAcft experienced an eng failure shortly after t/o from a pvt strip. Acft had been recently refueled at the strip. On touchdown, the acft flipped over and slid to a stop. Investigation revealed water in the acft fuel tank and in the fuel supply tank.Apr 11, 1988 · N6620K · Destroyed NTSB FTW87DRA06Accident · No injuriesFinal reportGrumman G-164B · Beaumont, TXDrg the initial climb after takeoff, the eng began losing RPM & the plt was unable to return to the arpt. He selected a pasture area for an emerg landing, but the eng contd losing power. While landing on soft terrain with tall wet grass, the acft nosed over.…Jul 11, 1987 · N6881K · Substantial damage NTSB FTW87DRA03Accident · No injuriesFinal reportGrumman G-164B · Egypt, TXAcft experienced a power loss drng an aerial app maneuver. During the ensuing emerg lndg, the left wing struck high weeds on the shoulder of a road, veered left into a ditch, and flipped over. Investigation revealed no. 7 cylinder had a pre-existing crack in…Jun 8, 1987 · N6667Q · Substantial damage NTSB FTW86LA113Accident · No injuriesLimited investigationFinal reportGrumman G-164 · Palacios, TXDuring the ground run portion of the takeoff, the acft contacted a mud hole which resulted in it veering off the grass and into bushes alongside the strip. The plt did not select suitable terrain for the takeoff.Jun 19, 1986 · N48398 · Substantial damage NTSB FTW83LA405Accident · Minor injuriesLimited investigationFinal reportGrumman G-164B · East Bernard, TXDuring takeoff, the eng had a partial loss of power after the acft lifted off. The plt reported that he dumped his load of defoliant, but the acft would not climb. Subsequently, it settled & collided with brush & trees. The plt attributed the power loss to a…Aug 31, 1983 · N48687 · Substantial damage NTSB FTW83LA391Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Lissie, TXThe acft ran into a ditch during takeoff and collapsed the landing gear. The plt said he was steering around some mud holes when the wing became entangled in high grass alongside the rwy. The acft groundlooped off the rwy into a ditch. The wings and landing…Aug 20, 1983 · N48516 · Substantial damage NTSB FTW82DRA22Accident · Serious injuriesFinal reportGrumman G-164 · Hardin, TXThe pilot reported that he struck power lines while flying under them during a swath run. Also, he indicated that a thunderstorm was rapidly approaching the field at the time the accident occurred.Jun 25, 1982 · N8354K · Substantial damage NTSB FTW81FQG40Accident · No injuriesClosedGrumman G-164B · Springlake, TXJul 7, 1981 · N6614Q · Substantial damage NTSB FTW81DA093Accident · 2 fatalClosedGrumman G-164B · Danbury, TXMay 19, 1981 · N6821K · Destroyed NTSB FTW81FRA22Accident · Serious injuriesClosedGrumman G-164B · Lissie, TXMar 21, 1981 · N48609 · 2 aircraft · Destroyed NTSB FTW80DRA34Accident · No injuriesClosedGrumman G-164B · Lissie, TXJun 5, 1980 · N48711 · Destroyed NTSB FTW80FRA30Accident · Minor injuriesClosedGrumman G-164B · Lissie, TXMay 12, 1980 · N6656Q · Substantial damage NTSB FTW80FRG23Accident · No injuriesClosedGrumman G-164 · Pharr, TXFeb 4, 1980 · N6673Q · Destroyed NTSB FTW79FQG41Accident · No injuriesClosedGrumman G-164B · Sylvester, TXMay 26, 1979 · N6605Q · Substantial damage NTSB FTW79FRG32Accident · Minor injuriesClosedGrumman G-164B · La Feria, TXMay 23, 1979 · N6615Q · Substantial damage NTSB FTW79DRA12Accident · No injuriesClosedGrumman G-164B · Rosharon, TXMar 17, 1979 · N6714K · Substantial damage NTSB FTW78FRA22Accident · Serious injuriesClosedGrumman G-164A · Rosharon, TXMay 26, 1978 · N6681Q · Destroyed NTSB FTW78FRA20Accident · Serious injuriesClosedGrumman G-164B · La Ward, TXMay 22, 1978 · N6727Q · Destroyed NTSB FTW77DQG09Accident · No injuriesClosedGrumman G-164B · Springlake, TXFeb 5, 1977 · N48534 · Substantial damage