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

21 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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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" = 'WA' 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\" = 'WA' 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" = 'WA' 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 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.Aug 15, 2011 · N6628Q · Substantial damage 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.Jun 15, 2011 · N8376K · Substantial damage NTSB WPR10LA139Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Colfax, WAA partial loss of engine power due to carburetor ice as a result of the pilot's failure to use carburetor heat.Feb 18, 2010 · N6774Q · Substantial damage NTSB WPR10LA122Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Pullman, WAA partial loss of engine power during takeoff due to a bird's nest being sucked into the induction air ducting.Jan 30, 2010 · N6799K · Substantial damage NTSB WPR09LA227Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Colfax, WAA total loss of engine power due to excessive wear in several carburetor components that led to a malfunction of the carburetor.May 4, 2009 · N6628Q · Substantial damage NTSB LAX08CA082Accident · No injuriesData collectionFinal reportGrumman-Schweizer G-164B · Colfax, WAThe pilot's inadequate compensation for the wind conditions, failure to attain and maintain an adequate airspeed that resulted in a stall mush, and, the subsequent failure to maintain terrain and obstacle clearance during the takeoff initial climb.…Mar 22, 2008 · N63D · Substantial damage NTSB SEA06CA145Accident · Minor injuriesData collectionFinal reportGrumman-Schweizer G-164B · Lamont, WAThe pilot's failure to maintain terrain clearance while maneuvering.Jul 23, 2006 · N8376K · Substantial damage NTSB SEA01LA149Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Quincy, WAThe failure of the impeller assembly as a consequence of impeller rub and binding within the impeller collector case for undetermined reasons.Aug 11, 2001 · N6774Q · Substantial damage NTSB SEA00LA099Accident · Serious injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Colfax, WAThe pilots failure to maintain clearance from power transmission lines.Jun 5, 2000 · N6549K · Substantial damage NTSB SEA98LA095Accident · Serious injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Starbuck, WAThe pilot-in-command's failure to maintain adequate visual lookout. A contributing factor was the unmarked transmission lines.Jun 12, 1998 · N8252K · Destroyed NTSB SEA98LA038Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Stanwood, WAThe pilot's failure to apply carburetor heat. Factors included carburetor icing conditions and soft terrain in the forced landing area.Feb 19, 1998 · N48493 · Substantial damage NTSB SEA95LA188Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Ephrata, WAThe pilot's inadequate compensation for wind conditions. Factors contributing to the accident were crosswinds and gusts.Jul 28, 1995 · N6774Q · Substantial damage NTSB SEA94LA072Accident · No injuriesLimited investigationFinal reportGrumman G-164 · Walla Walla, WAUnsuitable terrain for a forced landing after a loss of power due to a failed engine cylinder. Factors include a partial magneto failure.Mar 2, 1994 · N6612Q · Substantial damage NTSB SEA93LA168Accident · Serious injuriesLimited investigationFinal reportCessna A150L · Ephrata, WAInadequate visual lookout by both pilots, resulting in their failure to see-and-avoid each other's aircraft. A factor related to the accident was: failure of the Grumman 164B pilot to adequately monitor the UNICOM frequency.Aug 1, 1993 · N5958J · 2 aircraft · Destroyed NTSB SEA91LA178Accident · No injuriesLimited investigationFinal reportGrumman G-164-B · Pullman, WAThe pilot's failure to maintain runway alignment. Factors include high vegetation growing close to the runway.Jul 18, 1991 · N6657Q · Substantial damage NTSB SEA91LA136Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Wilson Creek, WAThe loss of engine power in flight due to improper overhaul of the carburetor float assembly fulcrum screw, shutting off fuel flow to the engine.May 27, 1991 · N8407K · Substantial damage NTSB SEA88LA098Accident · No injuriesLimited investigationFinal reportGrumman G-164 · Ritzville, WAWhile on an aerial applications flight, the pilot was climbing to clear power lines when a whirlwind was encountered. The aircraft struck a power pole and descended onto the ground.May 20, 1988 · N6963K · Destroyed NTSB SEA84LA133Accident · Minor injuriesLimited investigationFinal reportGrumman G-164B-450 · Pullman, WAAfter making a swath run, the acft entered a steep turn with an airspeed of about 75 mph. According to two witnesses, the eng lost power & then the acft crashed. The plt was unable to remember what had happened from the time he entered the turn until he…Jun 14, 1984 · N6798Q · Destroyed NTSB SEA83LA206Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Selah, WAWhile landing on a road, during an aerial application operation, the acft nosed over. According to the plt, the brakes had not released after he had released the toe brakes. He reported that he found the parking brake midway between the on & off positions.Sep 28, 1983 · N6674Q · Substantial damage NTSB SEA83LA063Accident · No injuriesLimited investigationFinal reportGrumman 164B · Toppenish, WAThe aircraft nosed over in a ditch during a landing on a gravel road after an aerial application flight. The pilot said that he lost directional control during landing rollout and one main gear went into a ditch. The aircraft then nosed over and came to rest…Mar 16, 1983 · N6674Q · Substantial damage NTSB SEA77DYP40Accident · No injuriesClosedGrumman G-164B · Quincy, WAAug 15, 1977 · N48423 · Substantial damage