# NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164A: Airframe/component/system failure/malfunction 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 CHI97LA178](https://openairdocs.org/ntsb/CHI97LA178.md): Grumman-Schweizer G-164A · Benton, MO · Accident · No injuries · Limited investigation · Final report · Jun 20, 1997 · N48FS · Substantial damage > the pilot's inadequate preflight by failing to insure that the secondary flight control lock was stowed properly, and subsequently the secondary flight control lock becoming engaged during the takeoff run. A factor relating to the accident was: inadequate… - [NTSB DEN93LA076](https://openairdocs.org/ntsb/DEN93LA076.md): Grumman G-164A · Kaplan, LA · Accident · Minor injuries · Limited investigation · Final report · Jul 12, 1993 · N9680 · Substantial damage > Failure of the spray rig which sprayed chemicals into the pilot's eyes temporarily blinding him. - [NTSB FTW92LA020](https://openairdocs.org/ntsb/FTW92LA020.md): Grumman G-164A · Epps, LA · Accident · No injuries · Limited investigation · Final report · Nov 6, 1991 · N4546 · Substantial damage > The loss of 1/2 of a propeller blade. Factors were powerplant vibration and resultant powerplant separation. - [NTSB FTW89DRD14](https://openairdocs.org/ntsb/FTW89DRD14.md): Grumman G-164A · Franklin, LA · Accident · No injuries · Final report · Sep 8, 1989 · N7498 · Substantial damage > Fatigue 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 SEA89LA096](https://openairdocs.org/ntsb/SEA89LA096.md): Schweizer G-164 · Hermiston, OR · Accident · No injuries · Limited investigation · Final report · May 26, 1989 · N8768H · Substantial damage > Failure and separation of the left main landing wheel. - [NTSB LAX88DVA15](https://openairdocs.org/ntsb/LAX88DVA15.md): Schweizer G-164A · Laton, CA · Accident · No injuries · Final report · Sep 22, 1988 · N9946 · Substantial damage - [NTSB FTW88DRD09](https://openairdocs.org/ntsb/FTW88DRD09.md): Grumman G-164A · Basile, LA · Accident · No injuries · Final report · Jun 17, 1988 · N4243 · Substantial damage > During or after lift-off, the right landing gear axle assembly separated from the landing gear leg when the mounting bolts sheared. During landing, the airplane ground-looped and then flipped to the inverted position. - [NTSB FTW88DRD06](https://openairdocs.org/ntsb/FTW88DRD06.md): Grumman G-164A · Abbeville, LA · Accident · No injuries · Final report · May 28, 1988 · N7203 · Substantial damage > The ag plt had finished spreading his load of chemicals & was landing when the left brake failed to operate. He started to apply pwr for a go-around, but the eng coughed & did not respond properly. The plt then closed the throttle & appliedrgt brake to avoid… - [NTSB MIA88LA137](https://openairdocs.org/ntsb/MIA88LA137.md): Grumman G-164A · Wayside, MS · Accident · No injuries · Limited investigation · Final report · Apr 1, 1988 · N7961 · Substantial damage > While on an aerial application flt on short final, the plt pulled the throttle lever to reduce airspeed but it broke at the power control quadrant. The apch was continued & after acft traveled aprx 1/2 the length of the rwy, he turned the magneto switch off.… - [NTSB FTW87DRD08](https://openairdocs.org/ntsb/FTW87DRD08.md): Grumman G-164A · Lacassine, LA · Accident · No injuries · Final report · Jul 7, 1987 · N9778 · Substantial damage > The pilot stated the aircraft's tail wheel broke during the takeoff roll causing the aircraft to veer to the right. The right wing contacted a small tree and the right main gear wheel dropped into a ditch which was parallel with the runway. Directional… - [NTSB CHI85FER02](https://openairdocs.org/ntsb/CHI85FER02.md): Grumman 164A · Becker, MN · Accident · No injuries · Final report · Sep 18, 1985 · N48405 · Substantial damage > The plt reported the eng pwr dropped from 2000 to 1550 RPM during the aerial application flt. The plt increased throttleand advanced the prop with no increase in pwr. The acft then settled to ground impact and nosed over. Post accident inspection disclosed… - [NTSB FTW84LA262](https://openairdocs.org/ntsb/FTW84LA262.md): Grumman G-164A · Bell City, LA · Accident · No injuries · Limited investigation · Final report · Jun 1, 1984 · N8661H · Substantial damage > A 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 SEA84LA109](https://openairdocs.org/ntsb/SEA84LA109.md): Grumman G-164 · Craigmont, ID · Accident · No injuries · Limited investigation · Final report · May 17, 1984 · N48373 · Substantial damage > During 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 MKC84LA101](https://openairdocs.org/ntsb/MKC84LA101.md): Schweizer G-164A · Biscoe, AR · Accident · No injuries · Limited investigation · Final report · Mar 14, 1984 · N8945H · Substantial damage > After 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 FTW83LA239](https://openairdocs.org/ntsb/FTW83LA239.md): Grumman G-164A · Hayes, LA · Accident · No injuries · Limited investigation · Final report · May 17, 1983 · N9805 · Substantial damage > The acft ran off the rt side of the rwy and collided with a dirt embankment drng lndg roll. Brake fluid was found on the l main gear following the accd. Investigation revealed the source of the leak to be a popped o-ring in the brake actuating cylinder. - [NTSB ATL83LA019](https://openairdocs.org/ntsb/ATL83LA019.md): Grumman G-164 · Adel, GA · Accident · No injuries · Limited investigation · Final report · Oct 27, 1982 · N7231 · Destroyed > Following maintenance performed on the aircraft the pilot conducted a check flight. After takeoff the pilot discovered fuel splashing on the windshield and proceeded to abort the takeoff. Upon landing the pilot lost control of the aircraft. The aircraft… - [NTSB FTW82DA160](https://openairdocs.org/ntsb/FTW82DA160.md): Grumman G-164A · Oberlin, LA · Accident · No injuries · Final report · Apr 29, 1982 · N5409 · Destroyed > The pilot reported that during landing, his left brake failed. He elected to go-around. However, while maneuvering to avoid a building, the aircraft struck a rice dike and crashed. The pilot reported that the left brake thrust plate had broken during the… ## 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" = 130)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?model=3952801&occurrence=130 --- 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.