NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164B
23 cases on aircraft the registry lists as Grumman Acft ENG Cor-Schweizer G-164B, where the first occurrence was “Loss of control - on ground/water”. 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
| 1982 | 1 |
|---|---|
| 1983 | 3 |
| 1986 | 2 |
| 1987 | 2 |
| 1988 | 1 |
| 1991 | 1 |
| 1992 | 1 |
| 1993 | 3 |
| 1994 | 2 |
| 1995 | 1 |
| 2000 | 2 |
| 2001 | 1 |
| 2002 | 2 |
| 2005 | 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')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 260))
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')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 260))
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 SEA05CA157Accident · No injuriesData collectionFinal reportGrumman G-164B · Paul, IDThe failure of the pilot to maintain direction control during the landing roll, which resulted in a nose over. Contributing factors included the weeds and the wet, soft terrain..NTSB FTW02LA132Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Gillett, ARthe pilot's failure to maintain directional control on landing. A contributing factor was the high vegetation.NTSB LAX02LA125Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Dixon, CAThe pilot lost directional control due to the unsuitable landing area. A contributing factor was the muddy runway condition.NTSB MIA01LA105Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Dyer, TNThe improper installation of the main landing gear tire (pinched tube) by company maintenance personnel resulting in a total loss of air pressure in-flight, loss of directional control on landing roll, and subsequent nose down.NTSB FTW00LA167Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G164B · Natchitoches, LAThe failure of the pilot to maintain directional control during the landing roll, which resulted in a ground loop. A factor was the crosswind.NTSB MIA00LA168Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Monticello, MSThe failure of the pilot to maintain directional control during takeoff into crosswind conditions resulting in the collision with trees. A factor in the accident was the pilot's lack of familiarity with the aircraft.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.NTSB SEA94LA193Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Wilder, IDThe failure of the left brake master cylinder and the pilot's inadequate remedial action when the aircraft collided with an embankment during an intentional ground loop.NTSB FTW94LA178Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Antonito, COThe pilot's improper compensation for wind conditions. A factor was the gusty crosswind and the pilot inadvertently becoming lost.NTSB CHI93LA254Accident · No injuriesLimited investigationFinal reportGrumman G164B · Eldred, MNthe pilot's failure to maintain directional control during the takeoff roll.NTSB FTW93LA174Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Stuttgart, ARThe pilot's selection of the downwind runway for landing. Factors were the wind conditions and the left brake malfunction for undetermined reasonsNTSB LAX93LA226Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Madera, CAThe pilot's failure to maintain directional control. A factor related to this accident was the left quartering tailwind.NTSB LAX92LA215Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Live Oak, CAThe pilot's failure to maintain directional control and improper use of the brakes.NTSB CHI91DCA03Accident · No injuriesFinal reportSchweizer G164B · Gideon, MOA binding landing gear brake. A factor related to the accident was the pilot's subsequent inability to maintain directional control.NTSB MKC88LA158Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Humphrey, ARWhile attempting to land on a narrow dirt road bordered by crops, the plt said he contacted the high vegetation on the right side. The acft began to veer to the right. The plt attempted to steer to the left and veered off the roadway into a ditch and nosed…NTSB MKC87LA168Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Holly Grove, ARThe pilot lost control on takeoff roll, ran off the side of the runway and impacted a dirt bank. The aircraft came to rest in an inverted position. Investigation revealed no preimpact mechanical malfunctions/failures.NTSB SEA87LA067Accident · No injuriesLimited investigationFinal reportGrumman G164B · Reubens, IDDuring takeoff run the aircraft veered to the right of the runway, struck a ditch, and then nosed over inverted. The pilot found that the right dowel pin on the right main gear had broken. The reason for the failure could not be determined.NTSB FTW86LRD15Accident · No injuriesFinal reportGrumman G-164B · Church Point, LAThe acfts left wingtip caught in weeds during takeoff and the acft was pulled left. The plt had turned to avoid a wet spot on the airstrip and contacted the high weeds then swerved into a rice levee.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.NTSB LAX83LA407Accident · Minor injuriesLimited investigationFinal reportGrumman G-164B · Poston, AZDuring takeoff from the unlighted strip the acft went off the right side. The right main landing gear went into the softsandy shoulder & the acft flipped over.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…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…NTSB FTW82DA287Accident · No injuriesFinal reportGrumman G-164B · Humnoke, ARThe pilot reported that during takeoff, the left main gear got off the side of the rough airstrip and into a rice field. Subsequently, the plane flipped over.