NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164A
29 cases on aircraft the registry lists as Grumman Acft ENG Cor-Schweizer G-164A, where the first occurrence was “In flight collision with terrain/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 | 3 |
|---|---|
| 1984 | 4 |
| 1987 | 3 |
| 1988 | 1 |
| 1989 | 2 |
| 1991 | 3 |
| 1992 | 2 |
| 1994 | 3 |
| 1995 | 2 |
| 1996 | 1 |
| 1998 | 1 |
| 1999 | 1 |
| 2001 | 1 |
| 2005 | 1 |
| 2006 | 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 ('3952801')
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\" = 230))
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')
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" = 230))
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 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 SEA05LA146Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Jerome, IDFailure to maintain clearance from terrain during takeoff and initial climb. A high density altitude was a factor.NTSB DEN01LA163Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Parowan, UTthe pilot's failure to maintain adequate airspeed which resulted in an inadvertent stall/mush into terrain. Contributing factors were the pilot's diverted attention, the rising terrain, and the high density altitude weather condition.NTSB FTW99LA095Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Gillett, ARThe pilot's failure to maintain terrain clearance during the downwind departure. Factors were the tailwind and the wet soft grass airstrip.NTSB LAX98LA255Accident · Serious injuriesLimited investigationFinal reportGrumman G-164A · Nelson, CAThe pilot's failure to maintain an adequate ground clearance altitude while applying chemicals to a rice field.NTSB SEA96LA112Accident · Minor injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Prescott, WAfailure of the pilot to visually clear his flight path, after allowing his attention to be diverted, and his resultant failure to maintain sufficient altitude/clearance from a hill. The hilly terrain was a related factor.NTSB FTW95LA361Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Holyoke, COthe pilot's failure to maintain terrain clearance.NTSB FTW95LA217Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Ville Platte, LAThe pilot's failure to clear a levee during the approach. A factor was a truck parked on the runway.NTSB FTW94LA174Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Stuttgart, ARWas the pilots failure to maintain terrain clearance.NTSB CHI94LA106Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Sublette, KSthe commercial pilot's failure to maintain clearance from terrain. Related factors are sun glare and rising terrain.NTSB LAX94LA099Accident · Serious injuriesLimited investigationFinal reportGrumman G-164A · Davis, CAwas that the pilot misjudged the airplane's altitude during the swath run.NTSB ATL92LA124Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Ft. Gaines, GAThe pilot's inadequate preflight planning/preparation.NTSB LAX92LA110Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Greenfield, CAThe pilot's failure to maintain adequate altitude during an intentionally performed low altitude flight in mountainous terrain. Contributing factors related to the pilot's visual perception of the canyon area because of changes in the ambient lighting…NTSB FTW91DPG18Accident · No injuriesFinal reportGrumman G-164A · Dewitt, ARThe pilot's failure to maintain proper glidepath. A factor was the berm at the approach end of the runway.NTSB SEA91LA105Accident · Serious injuriesLimited investigationFinal reportGrumman G-164A · Lapwai, IDThe pilot's misjudgment of an aerial application swath run. Factors include a downdraft condition and soft terrain.NTSB FTW91DPG06Accident · No injuriesFinal reportGrumman G-164A · Gillett, ARThe windshiled becoming obscured by aerial application spray and the resultant limited vision from the cockpit.NTSB MIA89LA203Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Schlater, MSInadequate preflight planning/preparation by the pilot which resulted in the selection of the wrong runway. The tailwindand dirt bank were considered to be contributing factors.NTSB MKC89LA089Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Osceola, ARImproper planning/decision by the pilot, and his misjudgement of clearance between the airplane, wires, and the ground during the aerial application maneuver. Factors relating to the accident were: the dirty windshield, sunglare, transmission line (wires),…NTSB SEA88LA135Accident · No injuriesLimited investigationFinal reportSchweizer G164A · Colfax, WAOn departure with a load of chemical, ag plt attempted to outclimb rising terrain ahead. The aircraft collided with terrain in a stall/mush.NTSB DEN87LA192Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Romeo, COThe plt reports that the acft encountered a downdraft during the turn around following a swath run. The aircraft began to settle and collided with the ground, bounced, hit a second time and nosed over. The aircraft was loaded with 280 gals of amine and 70…NTSB MIA87LA211Accident · No injuriesLimited investigationFinal reportSchweizer G-164A · Greenwood, MSShortly after takeoff from a 1,800 ft grass strip on a 93 degree f day, the acft, loaded with 1,500 pounds of chemical, began to settle. It then touched down in a field, nosed over & came to rest inverted. The plt stated there was no eng failure or…NTSB MIA87FA160Accident · 1 fatalField investigationFinal reportSchweizer G-164A · Dundee, MSWhile spraying a rice field, the acft was flying across svrl small dirt banks that had been furrowed for water ctl. Drg a swath run, it struck 3 furrowed banks that were close together, flipped over as it crashed, then burned. Witnessesrprtd the eng was…NTSB MKC84FCA01Accident · Serious injuriesFinal reportGrumman-Schweizer G-164A · Neelyville, MOThe plt stated that after takeoff & two miles from the destination airport, the plt started a 180 deg turn to the rt to return to the takeoff strip. Approx halfway through the turn at 45 deg of bank, the rt wing pitched downward & he was unable to correct by…NTSB MKC84LA200Accident · Minor injuriesLimited investigationFinal reportGrumman G164A · Bernie, MODescending out of the procedure turn into a swath run the plt was unable to level the acft in time to avoid flying into the bean field. The acft nosed over on impact and caught fire. Density altitude was about 2,800 ft. acft gross weight was aprx 5,500…NTSB FTW84LA225Accident · No injuriesLimited investigationFinal reportGrumman G164A · Fenton, LAThe acft, while maneuvering at low alt, hit the ground and flipped inverted. The plt reported encountering a strong downdraft over a wooded area and in maneuvering to avoid the trees, the acft settled to the ground. The plt reported winds from 225 degrees at…NTSB SEA84LA097Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Hermiston, ORDuring a beginning swath run, the plt was making a left skidding turn to follow the edge of a circular field. He stated that the acft encountered a downdraft which raised the right wing. Subsequently, the left wing contacted the ground & the acft crashed.NTSB FTW82FPG18Accident · Serious injuriesFinal reportGrumman G-164A · Casa, ARThe aircraft collided with rising terrain during a procedure turn. While spraying a rice field.NTSB SEA82DA083Accident · Minor injuriesFinal reportGrumman G-164A · Dayton, WAThe pilot had just returned to the area after picking up a load of di-syston. Another ag aircraft had been spraying in an adjacent field. The pilot circled and looked for the other aircraft, but did not see it. He stated that he checked the smoke to determine…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.