NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164A, 1984
24 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\") = 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 ('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") = 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 ('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 ATL85LA018Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Tunica, MSThe pilot attempted takeoff from an agricultural site which had soft spots from wet conditions. Directional control was lost when one main wheel encountered a soft spot. The aircraft veered into a plowed field and flipped inverted.NTSB MKC85LA006Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Cotton Plant, ARDuring aerial application flight, the engine master connecting rod failed. Forced landing was performed in a Cotton field. Acft nosed over during landing roll due to terrain conditions. Engine had 176 hours since major ovhl.NTSB LAX84LA474Accident · No injuriesLimited investigationFinal reportGrumman 164A · Goodyear, AZPlt reported pwr loss occurred during night aerial application. Acft nosed over during forced landing in crop field. Investigation failed to reveal any evidence of a mechanical failure/malfunction. Engine was test run to extent permitted by damage and no…NTSB FTW84LA364Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Schriever, LAThe plt stated that he had full fuel & a full load of spray when the eng exploded. The nature & cause of the pwr failurewas not determined & external examination of the eng revealed no evidence of a mechanical failure.NTSB MKC84LA250Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Swifton, ARDuring a swath run the #9 cylinder on the radial engine separated. A forced landing was made during which the acft landed in a levee and nosed over.NTSB ATL84LA256Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Adams, TNAfter completing a spray run the plt climbed to 75 ft AGL to fly aprx 2 miles to the next field. The elevation of the destination field was higher than the last one sprayed; no estimate of elevation change was provided. While attempting to climb over a hill…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 MKC84LA226Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Steele, MOThe pilot stated that after takeoff, at an altitude of 50 ft AGL he reduced the engine power. Shortly thereafter, the acft stalled and touched down on the rwy. He stated he applied excessive brake pressure to stop the acft and it nosed over on the rwy.NTSB MKC84LA222Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Stanford, ARWhen the pilot made his first swath run he flew over a set of wires, on the return run he went under the wires. The pilot said he hit his own prop wash and rolled enough for the wing tip to contact the wire.NTSB MKC84LA217Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Osceola, ARThe acft crashed into a levee in a rice field after losing engine power during a spray operation turn-around. The enginedid not quit entirely but lost enough power so that flt was not maintained. An inspection of the engine revealed a broked connecting rod.NTSB MKC84LA213Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Gillette, ARDuring swath run engine ran rough and could not sustain acft in flight. The plt made a forced landing in a soft freshly plowed field. The acft nosed over during the landing. Inspection of the acft revealed that one magneto was missing teethfrom the drive gear…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 LAX84LA380Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · El Mirage, AZThe plt was practicing takeoffs & landings with about 800 lbs of water on board. After turning downwind for his second landing, he experienced a loss of airspeed & the acft started to sink into power lines. He released the emergency dump gate, at which time,…NTSB DEN84LA192Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Murdo, SDThe pilot reported the engine failed while he was in a procedure turn. The pilot made a forced landing in an open field and the acft nosed over. Examination of the engine after the accident revealed the engine 'swallowed an exhaust valve' that caused the…NTSB FTW84LA262Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Bell City, LAA propeller counterweight bearing shaft failed after takeoff at max gross weight. A vibration occurred & the plt began dumping his load, but he was unable to maintain altitude. The aircraft landed in soft mud and nosed over when it collided with a rice levee…NTSB FTW84LA253Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Kinder, LAThe plt reported after the accident that he was dispensing fertilizer and had just flown through a heavy rain shower when the engine began to lose power. A forced landing was made in a flooded rice field and the acft nosed over. The pilot stated that he was…NTSB DEN84LA153Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Wiggins, COWhile en route to a field for aerial application, an oil mist appeared on the windshield of the acft. Shortly after that, the eng progressively lost power & the plt made a forced landing in a pasture. During the landing roll, the acft hit a hole in the ground…NTSB SEA84LA109Accident · No injuriesLimited investigationFinal reportGrumman G-164 · Craigmont, IDDuring aerial application the engine lost power & a forced landing was initiated to a wheat field. During the landing approach the acft stalled at about 10 to 20 feet AGL. The acft landed hard and flipped over. Examination of the engine revealed a broken…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 FTW84LA194Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Beaumont, TXThe acft stalled during a turn around between swath runs. The pilot stated that he was unable to recover because there was not sufficient alt.NTSB FTW84LA185Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Eunice, LAThe plt reported that the engine lost power on takeoff and return to the rwy was not possible, so he landed on the edge of a pond. A post accident investigaiton revealed a crack in the #7 cyl head between the spark plug holes. The engine had just gotten a…NTSB MKC84LA101Accident · No injuriesLimited investigationFinal reportSchweizer G-164A · Biscoe, ARAfter spraying operations acft propeller would be pressure sprayed. Water entered propeller pitch change bearings which corroded bearings. Eventually pitch movement was hindered by rust corrosion. The blade counterweight bolt broke allowing the propeller…NTSB FTW84LA145Accident · 1 fatalLimited investigationFinal reportGrumman G-164A · Abbeville, LAThe plt was employed as a professional corporate & charter plt; however, he had not flown agricultural acft in several years. He had receently purchased half interest in the air sevice & was on his 1st refresher flt since then. While the plt was practicing a…