NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164A, 1989
23 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.
Cases per year
| 1971 | 1 |
|---|---|
| 1972 | 11 |
| 1973 | 15 |
| 1974 | 22 |
| 1975 | 31 |
| 1976 | 41 |
| 1977 | 38 |
| 1978 | 41 |
| 1979 | 35 |
| 1980 | 25 |
| 1981 | 25 |
| 1982 | 22 |
| 1983 | 19 |
| 1984 | 24 |
| 1985 | 14 |
| 1986 | 12 |
| 1987 | 18 |
| 1988 | 22 |
| 1989 | 23 |
| 1990 | 11 |
| 1991 | 17 |
| 1992 | 21 |
| 1993 | 17 |
| 1994 | 12 |
| 1995 | 19 |
| 1996 | 15 |
| 1997 | 8 |
| 1998 | 10 |
| 1999 | 7 |
| 2000 | 2 |
| 2001 | 6 |
| 2002 | 5 |
| 2003 | 1 |
| 2004 | 3 |
| 2005 | 10 |
| 2006 | 5 |
| 2007 | 3 |
| 2008 | 5 |
| 2009 | 4 |
| 2010 | 1 |
| 2011 | 6 |
| 2012 | 3 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 3 |
| 2019 | 1 |
| 2020 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 3 |
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 year(c.\"eventDate\") = 1989
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 year(c."eventDate") = 1989
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" 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 LAX89DUJ11Accident · No injuriesFinal reportGrumman G-164 · Mohave Valley, AZA loss of engine power for undetermined reasons.NTSB FTW89DRD14Accident · No injuriesFinal reportGrumman G-164A · Franklin, LAFatigue failure of the propeller blade, which resulted in separation of the blade's tip and severe engine vibration. The soft terrain was a related factor.NTSB ATL89DKG05Accident · Minor injuriesFinal reportGrumman G-164A · Dawson, GAFailure of the number three cylinder head.NTSB MKC89LA169Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Harviell, MOThe pilot's inability to avoid unsuitable terrain during the landing roll after a forced landing. The forced landing was made necessary by a loss of engine power caused by a foreign object restricting the fuel system.NTSB SEA89LA135Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Albion, IDThe pilot's improper use of the mixture control during takeoff. The fence was a related factor.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 FTW89DRD11Accident · No injuriesFinal reportSchweizer G-164A · Lake Arthur, LALoss of engine power for undetermined reasons. The high weeds (vegetation) & levee (dirt bank) were considered to be related factors.NTSB SEA89LA121Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Colfax, WAImproper installation of the cylinder assembly. The terrain was not suitable for a successful forced landing.NTSB MKC89LA142Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Waldenburg, ARThe total failure of the engine supercharger which resulted in a loss of engine power.NTSB SEA89LA115Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Battle Mountain, NVThe loss of engine power in flight due to a broken number two rocker arm. Contributing to the accident was the vehicle on the road which resulted in the pilot flaring prematurely.NTSB FTW89DRD07Accident · No injuriesFinal reportGrumman-Schweizer G-164A · Morse, LALoss of engine power for an undetermined reason. The soft terrain was a contributing factor.NTSB SEA89LA096Accident · No injuriesLimited investigationFinal reportSchweizer G-164 · Hermiston, ORFailure and separation of the left main landing wheel.NTSB FTW89DRD04Accident · No injuriesFinal reportSchweizer G-164A · Oak Grove, LAThe pilot failed to perform adequate prelight planning/preparation before attempting a takeoff by failing to assure the runway condition.NTSB FTW89DRD03Accident · 1 fatalFinal reportSchweizer G-164A · Maxie, LAFailure of the pilot to maintain clearance from the trees. A factor related to the accident was: the presence of trees near the field where fertilizer was to be dispensed.NTSB ATL89DKJ03Accident · No injuriesFinal reportGrumman G-164A · Loxley, ALThe loss of engine power due to carburetor ice, and the pilot's improper use of carburetor heat.NTSB FTW89DRG05Accident · No injuriesFinal reportGrumman-Schweizer G-164 · Edcouch, TXLoss of engine power for an undetermined reason. The corn crop was a contributing factor.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 SEA89LA059Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Rosalia, WAA loss of engine power due to a supercharger failure. Contributing to the accident was the soft terrain on which the forced landing was made.NTSB MKC89LA085Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Advance, MOThe pilot's inadequate visual lookout resulting in his failure to see power lines in time to avoid them. Contributing to the accident was the reduced visibility due to fog.NTSB MKC89LA079Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Stuttgart, ARFailure of the engine blower assembly drive shaft, while maneuvering at low altitude, and failure of the pilot to maintain adequate airspeed, which resulted in a stall before he could land.NTSB MKC89LA075Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Wynne, ARAn engine fire during engine start for undetermined reasons.NTSB LAX89DVA06Accident · Serious injuriesFinal reportGrumman G-164A · Riverdale, CAInadequate visual lookout by the pilot, when he diverted his attention. The power line was a related factor.NTSB ATL89DKG01Accident · No injuriesFinal reportGrumman G-164A · Dawson, GATotal loss of engine power due to leaking carburetor float. Contributing to the accident was the soft terrain used for a forced landing.