# NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164A: Loss of engine power(partial) - mech failure/malf NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. ## Latest cases - [NTSB DFW05CA207](https://openairdocs.org/ntsb/DFW05CA207.md): Grumman G-164 · Knobel, AR · Accident · No injuries · Data collection · Final report · Aug 9, 2005 · N9041Q · Substantial damage > The loss of engine power due to the failure of the #1 cylinder head. A contributing factor was the lack of suitable terrain for the forced landing. - [NTSB DFW05CA186](https://openairdocs.org/ntsb/DFW05CA186.md): Grumman-Schweizer G-164A · Tallulah, LA · Accident · Minor injuries · Data collection · Final report · Jul 21, 2005 · N8891H · Substantial damage > The partial loss of engine power as result of the fracture of the number five-cylinder exhaust valve rocker arm mounting boss. A contributing factor was the lack of suitable terrain for the forced landing. - [NTSB SEA04LA139](https://openairdocs.org/ntsb/SEA04LA139.md): Grumman G-164A · Nyssa, OR · Accident · Minor injuries · Limited investigation · Final report · Jul 23, 2004 · N7220 · Substantial damage > The failure (fracture) of the number four cylinder head during an aerial application run. Factors include the soft crop-covered terrain. - [NTSB SEA04LA065](https://openairdocs.org/ntsb/SEA04LA065.md): Grumman G-164 · Nezperce, ID · Accident · No injuries · Limited investigation · Final report · Apr 5, 2004 · N48564 · Substantial damage > The circumferential fracture of the number seven cylinder head while en route to an aerial fertilizer application, leading to a forced landing on soft terrain, resulting in the collapse of the right main gear leg. Factors include soft terrain at the location… - [NTSB CHI01LA229](https://openairdocs.org/ntsb/CHI01LA229.md): Grumman-Schweizer G-164A · Dodge Center, MN · Accident · No injuries · Limited investigation · Final report · Jul 22, 2001 · N5398 · Destroyed > The pilot not maintaining directional control on the ground during the takeoff roll. Factors relating to this accident were the total failure of the propeller governor and the corn crop. - [NTSB FTW00LA097](https://openairdocs.org/ntsb/FTW00LA097.md): Grumman-Schweizer G-164A · Gillett, AR · Accident · No injuries · Limited investigation · Final report · Mar 13, 2000 · N9785 · Substantial damage > The cracked #8 cylinder resulting in failure of the cylinder. A factor was the plowed/furrowed terrain. - [NTSB SEA99LA107](https://openairdocs.org/ntsb/SEA99LA107.md): Grumman-Schweizer G-164A · New Plymouth, ID · Accident · No injuries · Limited investigation · Final report · Jul 7, 1999 · N7869 · Substantial damage > Loss of engine power due to failure of the supercharger impeller. A contributing factor was the ditch. - [NTSB LAX96LA299](https://openairdocs.org/ntsb/LAX96LA299.md): Grumman-Schweizer G-164A · Caruthers, CA · Accident · Minor injuries · Limited investigation · Final report · Aug 8, 1996 · N8598H · Substantial damage > the loss of engine power due to the failure of a cylinder. The road's soft surface was a factor. - [NTSB SEA96LA155](https://openairdocs.org/ntsb/SEA96LA155.md): Grumman G-164A · New Plymouth, ID · Accident · No injuries · Limited investigation · Final report · Jul 15, 1996 · N48442 · Substantial damage > a cracked cylinder head, which resulted in partial loss of engine power during takeoff. Factors relating to the accident were: the pilot allowed the gross weight of the airplane to be exceeded, and tall wheat (crop) in the emergency landing area. - [NTSB NYC96LA105](https://openairdocs.org/ntsb/NYC96LA105.md): Grumman-Schweizer G-164A · Vineland, NJ · Accident · No injuries · Limited investigation · Final report · May 14, 1996 · N6620Q · Substantial damage > failure of the number 8 cylinder, which resulted in loss of engine power, a forced landing in soft terrain, and subsequent nose over of the airplane. - [NTSB ATL95LA172](https://openairdocs.org/ntsb/ATL95LA172.md): Grumman G-164A · Lynchburg, SC · Accident · No injuries · Limited investigation · Final report · Sep 22, 1995 · N9700 · Substantial damage > The failure of the magneto mount pad, which resulted in a malfunction of the magneto timing and partial loss of engine power. A factor relating to the accident was: high vegetation in the emergency landing area. - [NTSB SEA95LA165](https://openairdocs.org/ntsb/SEA95LA165.md): Grumman G-164A · Buhl, ID · Accident · 1 fatal · Limited investigation · Final report · Jul 29, 1995 · N48471 · Substantial damage > The loss of power due to the failure of an engine cylinder. The chemical load was not dumped for undetermined reasons and contributed to the severity of injuries. - [NTSB FTW94LA145](https://openairdocs.org/ntsb/FTW94LA145.md): Grumman G-164A · El Campo, TX · Accident · Serious injuries · Limited investigation · Final report · May 7, 1994 · N9682 · Destroyed > The partial loss of engine power due to one magneto being weak and the other magneto arcing inside its case. A factor was the lack of suitable terrain for the forced landing. - [NTSB FTW93LA239](https://openairdocs.org/ntsb/FTW93LA239.md): Grumman-Schweizer G-164A · Garwood, TX · Accident · No injuries · Limited investigation · Final report · Aug 13, 1993 · N7993 · Substantial damage > The partial power loss for undetermined reasons. A factor was the lack of suitable terrain onto which a forced landing could be executed. - [NTSB FTW92LA116](https://openairdocs.org/ntsb/FTW92LA116.md): Grumman G-164A · Welsh, LA · Accident · No injuries · Limited investigation · Final report · Apr 14, 1992 · N9546 · Substantial damage > Partial power loss due to the cracked engine cylinder. A factor was the lack of suitable terrain for the forced landing. - [NTSB LAX91LA413](https://openairdocs.org/ntsb/LAX91LA413.md): Grumman G164A-450 · Queen Creek, AZ · Accident · Minor injuries · Limited investigation · Final report · Sep 29, 1991 · N16SS · Substantial damage > Failure of the engine cylinder, producing a loss of power. Contributing to the accident was the location of an irrigation ditch next to the landing area and a dark night light condition. - [NTSB FTW90DPG13](https://openairdocs.org/ntsb/FTW90DPG13.md): Grumman G-164A · Luxora, AR · Accident · No injuries · Final report · Aug 30, 1990 · N5213 · Substantial damage > A partial power loss due to failure of the number five connecting rod. A factor was the soft terrain in which the forced landing was made. - [NTSB FTW90DRA05](https://openairdocs.org/ntsb/FTW90DRA05.md): Grumman 164-B · Garwood, TX · Accident · No injuries · Final report · May 25, 1990 · N9982 · Destroyed > The power loss due to super charger impeller failure. - [NTSB FTW90DRD07](https://openairdocs.org/ntsb/FTW90DRD07.md): Grumman G-164A · Ville Platte, LA · Accident · No injuries · Final report · May 2, 1990 · N8938H · Destroyed > Partial loss of engine power due to a cracked number four cylinder intake rocker box housing. The lack of a suitable forced landing site was a related factor. - [NTSB MKC89LA142](https://openairdocs.org/ntsb/MKC89LA142.md): Grumman-Schweizer G-164A · Waldenburg, AR · Accident · No injuries · Limited investigation · Final report · Jun 23, 1989 · N9725 · Substantial damage > The total failure of the engine supercharger which resulted in a loss of engine power. - [NTSB SEA89LA059](https://openairdocs.org/ntsb/SEA89LA059.md): Grumman-Schweizer G-164A · Rosalia, WA · Accident · No injuries · Limited investigation · Final report · Mar 25, 1989 · N8792H · Substantial damage > A 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 ATL88DKG13](https://openairdocs.org/ntsb/ATL88DKG13.md): Grumman G-164A · Fadette, AL · Accident · No injuries · Final report · Aug 9, 1988 · N8573H · Substantial damage > The pilot reported a partial power loss during an aerial application flight. The aircraft landed in the crops. The pilot stated that he found the number 3 cylinder partially separated from the engine. - [NTSB FTW88DRD01](https://openairdocs.org/ntsb/FTW88DRD01.md): Grumman G-164A · Port Allen, LA · Accident · No injuries · Final report · Oct 8, 1987 · N6743Q · Substantial damage > The pilot experienced a partial loss of power during pull-up from a swath run. He attempted to return to the field he was working in order to make an emergency landing but was unable to due to inadequate engine power. He landed in high vegetation and flipped… - [NTSB CHI85LA373](https://openairdocs.org/ntsb/CHI85LA373.md): Schweizer G-164A · Irwin, OH · Accident · No injuries · Limited investigation · Final report · Sep 11, 1985 · N48514 · Destroyed > At an alt of aprx 20 ft AGL after takeoff, the #1 cylinder failed. A straight ahead landing was made in a corn field during which the acft was destroyed. The eng had under gone a major overhaul 197 hrs prior to this accident. - [NTSB MKC84LA250](https://openairdocs.org/ntsb/MKC84LA250.md): Grumman G-164A · Swifton, AR · Accident · No injuries · Limited investigation · Final report · Aug 14, 1984 · N7693 · Substantial damage > During 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 MKC84LA217](https://openairdocs.org/ntsb/MKC84LA217.md): Grumman G-164A · Osceola, AR · Accident · No injuries · Limited investigation · Final report · Jul 13, 1984 · N7928 · Substantial damage > The 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 MKC84LA213](https://openairdocs.org/ntsb/MKC84LA213.md): Grumman G-164A · Gillette, AR · Accident · No injuries · Limited investigation · Final report · Jul 12, 1984 · N9785 · Substantial damage > During 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 FTW84LA253](https://openairdocs.org/ntsb/FTW84LA253.md): Grumman G-164A · Kinder, LA · Accident · No injuries · Limited investigation · Final report · May 26, 1984 · N9693 · Substantial damage > The 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 FTW84LA185](https://openairdocs.org/ntsb/FTW84LA185.md): Grumman G-164A · Eunice, LA · Accident · No injuries · Limited investigation · Final report · Apr 4, 1984 · N9936 · Substantial damage > The 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 MKC82DA085](https://openairdocs.org/ntsb/MKC82DA085.md): Grumman G-164A · Tekamah, NE · Accident · No injuries · Final report · May 20, 1982 · N7689 · Substantial damage > On the third spray run the pilot stated that the aircraft engine had a loss of power. He attempted to fly back to the airport but was forced to make an emergency landing in an open field. During the landing roll the aircraft nosed over in the soft mud. Engine… - [NTSB FTW82DA169](https://openairdocs.org/ntsb/FTW82DA169.md): Grumman G164A · Welsh, LA · Accident · No injuries · Final report · May 8, 1982 · N9937 · Substantial damage > During the initial takeoff with a load of fertilizer the engine lost power and the load was dumped. A forced landing wasmade in a plowed, wet field and the aircraft nosed over. Investigation revealed the cylinder head failed. ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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" = 352)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?model=3952801&occurrence=352 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.