NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164B, 1984
16 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.
Cases per year
| 1976 | 4 |
|---|---|
| 1977 | 16 |
| 1978 | 24 |
| 1979 | 13 |
| 1980 | 23 |
| 1981 | 23 |
| 1982 | 14 |
| 1983 | 17 |
| 1984 | 16 |
| 1985 | 5 |
| 1986 | 8 |
| 1987 | 11 |
| 1988 | 11 |
| 1989 | 14 |
| 1990 | 14 |
| 1991 | 13 |
| 1992 | 10 |
| 1993 | 14 |
| 1994 | 18 |
| 1995 | 14 |
| 1996 | 7 |
| 1997 | 4 |
| 1998 | 11 |
| 1999 | 9 |
| 2000 | 9 |
| 2001 | 10 |
| 2002 | 7 |
| 2003 | 1 |
| 2004 | 6 |
| 2005 | 6 |
| 2006 | 7 |
| 2007 | 2 |
| 2008 | 6 |
| 2009 | 4 |
| 2010 | 13 |
| 2011 | 3 |
| 2012 | 2 |
| 2013 | 4 |
| 2014 | 4 |
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 3 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 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 year(c.\"eventDate\") = 1984
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 year(c."eventDate") = 1984
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" 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 MKC84LA255Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Marianna, ARThe landing gear contacted the bean crop which was being sprayed with sodium chlorate and the acft nosed over.NTSB FTW84LA349Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Tallulah, LAAfter applying seven (7) loads of chemicals the pilot landed and loaded both fuel and chemicals. After takeoff he completed one swath run and was just starting the second run when he allowed the wheels to contact the crop. The load was not jettisoned and the…NTSB LAX84LA423Accident · Minor injuriesLimited investigationFinal reportGrumman G-164B · Maricopa, AZThe plt added fuel and chemicals for a total of about 230 gallons of cargo. The temperature was 87 degrees and the arpt elevation is 1100 ft. the density alt was not computed and performance not assessed. After takeoff in a crosswind turn the acft 'quit…NTSB LAX84LA417Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Delhi, CAThe plt took off so early it was described by a witness as still being dark. The elevation of the accident was higher than the takeoff point. The operator said the plt tended to be easy on the equipment and throttled back shortly after takeoff. He stated that…NTSB MKC84LA211Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Roe, ARAs a result of a supercharger failure, a partial power loss was experienced during a swath run. During the landing roll after a forced landing, the acft nosed over & came to rest inverted. An eng teardown revealed that both supercharger bearings had failed…NTSB MKC84LA214Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Brule, NEAccording to the pilot, during the swath run the left wing dropped and the acft flew into the corn field. Density altitude was aprx 5,200 ft.NTSB MKC84LA181Accident · Minor injuriesLimited investigationFinal reportGrumman G-164B · Campbell, MOPIC was making a clean up swath run after spraying a field and failed to avoid a high voltage power line. After strikingthe line the acft impacted the ground, caught fire and burned.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…NTSB LAX84LA338Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Tracy, CAThe acft lost power during takeoff & nosed over in a wheat field. An exam revealed that the #7 cylinder head was cracked from the rear spark plug hole, 3/4 of the circumference around the exhaust valve.NTSB MKC84LA158Accident · No injuriesLimited investigationFinal reportSchweizer G164B · Ellinwood, KSWhile the plt was spraying a field of soybeans, the right main gear of the acft hit an irrigation sys that he had been crossing. The right main gear was torn off, but the acft continued to fly. During the landing on a sod arpt, the prop dug in & the acft…NTSB MKC84LA148Accident · Serious injuriesLimited investigationFinal reportGrumman G-164B · Humnoke, ARPlt stated he noticed a vibration in the acft on two flts prior to the accident flt. Plt felt forward pressure on the stick so he attempted to trim the acft. The acft nosed forward colliding with the terrain. Inspection disclosed no preimpact…NTSB MKC84LA143Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Silver Creek, NEThe plt stated he was making an end pass while spraying a pasture & collided with a hilltop on the opposite side of a draw. This occurred while the sun was obstructing his vision.NTSB ATL84LA171Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Rosedale, MSThe plt was transporting the acft to a newly constructed, private ag strip to begin aerial application. During the landing roll, one of the main landing gear rolled into a soft spot & sank into the ground, then the acft nosed over.NTSB CHI84LA149Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Leesburg, OHThe plt decided to land in a hay field to talk to the farmer about the aerial seeding operation he was conducting. During the landing the plt said the acft hit a soft spot in the field and nosed over.NTSB ATL84FA105Accident · 1 fatalField investigationFinal reportGrumman G-164B · Dawson, GAA failed cylinder head assembly resulted in a total power loss very shortly after takeoff. Witnesses observed the aerial application acft at 30-50 ft AGL over the rwy before it pulled up steeply, rolled and entered a near vertical uncontrolled descent to…NTSB MIA84LA060Accident · Minor injuriesLimited investigationFinal reportGrumman AG-CAT · Homestead, FLThe acft crashed during a forced landing after the engine lost power. Investigation revealed that that # 8 cylinder failed. The original cracking was determined to be from fatigue.