NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164B

38 cases on aircraft the registry lists as Grumman Acft ENG Cor-Schweizer G-164B, where the first occurrence was “In flight collision with object”. 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

19822026
NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164B per year, 1982–2026: 38 cases
19822
19831
19845
19861
19891
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19951
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20002
20012
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Latest 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 c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3952802')
      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\" = 220))
  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.

NTSB CHI07CA131Accident · Minor injuriesData collectionFinal reportGrumman-Schweizer G-164B · Humphrey, ARThe pilot's failure to maintain sufficient clearance between the airplane and the power lines. A factor was the power lines.May 4, 2007 · N668FA · DestroyedNTSB DFW05CA236Accident · Serious injuriesData collectionFinal reportGrumman G-164B · Epps, LAThe pilot's failure to maintain clearance with the power lines.Sep 14, 2005 · N6667Q · Substantial damageNTSB CHI04LA220Accident · 1 fatalLimited investigationFinal reportAllied Ag Cat Productions G-164B · Moville, IAThe pilot's inadequate in-flight planning/decision by his failure to maintain obstacle clearance. Contributing factors were low altitude flying and the tree.Aug 11, 2004 · N48424 · DestroyedNTSB CHI04CA151Accident · No injuriesData collectionFinal reportGrumman-Schweizer G-164B · Hope, NDThe pilot's failure to maintain clearance from the tree branches during the aerial-application flight. A factor to the accident was the trees.Jun 10, 2004 · N48517 · Substantial damageNTSB SEA04LA099Accident · Serious injuriesLimited investigationFinal reportGrumman G-164B · Midvale, IDThe failure of the pilot to maintain clearance from the high tension powerline. A factor was the powerline.Jun 5, 2004 · N8440K · DestroyedNTSB LAX02LA232Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Knights Landing, CAThe pilot's inadequate visual lookout, resulting in an in-flight collision with wires.Jul 20, 2002 · N6794K · Substantial damageNTSB FTW01LA203Accident · 1 fatalLimited investigationFinal reportGrumman G-164B · Lydia, LAthe pilot's failure to maintain clearance with a marked tower while maneuvering.Sep 5, 2001 · N48655 · DestroyedNTSB FTW01LA136Accident · 1 fatalLimited investigationFinal reportGrumman-Schweizer G-164B · Powhatan, ARthe pilot's failure to maintain obstacle clearance while maneuvering after takeoff.Jun 6, 2001 · N48721 · DestroyedNTSB LAX00LA285Accident · 1 fatalLimited investigationFinal reportGrumman G-164B · Tracy, CAThe pilot's failure to maintain adequate clearance from obstacles while maneuvering during an aerial application flight.Aug 1, 2000 · N6737K · DestroyedNTSB SEA00LA099Accident · Serious injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Colfax, WAThe pilots failure to maintain clearance from power transmission lines.Jun 5, 2000 · N6549K · Substantial damageNTSB CHI99LA046Accident · Minor injuriesLimited investigationFinal reportGrumman G-164B · Naponee, NEthe pilot's failure to identify the wires prior to spraying the field and the low altitude at which the pilot was flying. A factor was the wires which the airplane contacted.Dec 3, 1998 · N6676Q · Substantial damageNTSB SEA98LA095Accident · Serious injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Starbuck, WAThe pilot-in-command's failure to maintain adequate visual lookout. A contributing factor was the unmarked transmission lines.Jun 12, 1998 · N8252K · DestroyedNTSB CHI97LA278Accident · 1 fatalLimited investigationFinal reportSchweizer G-164B · Larimore, NDthe pilot delaying the swath run turnaround maneuver at the end of the field boundary, and his failure to maintain clearance between the airplane and the high tension wires. A factor was the pilot's inattentiveness regarding the time to begin the swath run…Sep 3, 1997 · N8326K · DestroyedNTSB FTW96LA232Accident · Minor injuriesLimited investigationFinal reportGrumman G-164B · Newport, ARfailure of the pilot to maintain clearance from the power line.May 31, 1996 · N6678Q · Substantial damageNTSB CHI95LA163Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · E. Grand Forks, MNThe pilot's failure to maintain clearance with the wires.Jun 1, 1995 · N6682K · Substantial damageNTSB FTW95LA009Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Oak Grove, LAThe pilot misjudged clearance from the vehicle.Oct 3, 1994 · N6676K · Substantial damageNTSB FTW94FA262Accident · 1 fatalField investigationFinal reportGrumman G-164B · Henderson, LAThe pilot's failure to maintain clearance from a known object.Aug 5, 1994 · N6804Q · DestroyedNTSB FTW94FA241Accident · 1 fatalField investigationFinal reportSchweizer G-164B · Foules, LAThe pilot's failure to maintain obstacle clearance.Jul 21, 1994 · N6617Q · DestroyedNTSB MIA93LA178Accident · Minor injuriesLimited investigationFinal reportSchweizer G-164B · Benton, MSThe pilot-in-command's failure to maintain proper visual outlook.Aug 18, 1993 · N6731Q · DestroyedNTSB FTW93LA172Accident · Serious injuriesLimited investigationFinal reportGrumman G-164B · Walnut Ridge, ARThe pilot's failure to maintain adequate clearance.Jun 2, 1993 · N48659 · DestroyedNTSB FTW93LA167Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Stuttgart, ARPilot's failure to maintain clearance from the electrical wires.May 26, 1993 · N8405K · DestroyedNTSB LAX91LA332Accident · 1 fatalLimited investigationFinal reportGrumman G-164B · Arizona City, AZFailure of the pilot to maintain an adequate visual outlook to avoid the collision with the power transmission lines. Contributing to the accident was the dark night light conditions that prevailed at the time of the accident.Jul 28, 1991 · N6681Q · DestroyedNTSB FTW91LA103Accident · 1 fatalLimited investigationFinal reportGrumman G-164B · Brighton, AR(1) The pilot's failure to maintain adequate clearance from the wires and (2) the wire's subsequent interference with the flight controls.Jun 19, 1991 · N48370 · DestroyedNTSB FTW90DPG14Accident · Minor injuriesFinal reportGrumman G-164B · Dumas, ARThe inadvertent stall encountered during the turn to reverse direction.Sep 4, 1990 · N48602 · Substantial damageNTSB LAX90DVA10Accident · Serious injuriesFinal reportGrumman-Schweizer G-164B · Westley, CAThe pilot's failure maintain obstacle clearance.Aug 19, 1990 · N6774Q · DestroyedNTSB CHI90DEV04Accident · No injuriesFinal reportGrumman G-164B · Princeton, ILThe pilot-in-command's failure to maintain adequate clearance from obstacles during flight at low altitude, resulting in wire strike.May 18, 1990 · N6695Q · Substantial damageNTSB FTW90DRD08Accident · No injuriesFinal reportSchweizer G-164B · Basile, LAThe pilot's inadequate evaluation of the weather information. A related factor to the accident was the tailwind.May 13, 1990 · N6733Q · DestroyedNTSB LAX90DVG04Accident · 1 fatalFinal reportGrumman G-164B · Esparto, CAThe pilot misjudged the airplane's clearance with the transmission wires.Apr 4, 1990 · N8011K · DestroyedNTSB FTW89DRA06Accident · No injuriesFinal reportGrumman G-164B · Lissie, TXA bird strike which resulted in foreign object damage to the engine compressor. A berm and the lack of suitable terrain for a forced landing were contributing factors.Jun 1, 1989 · N6822Q · Substantial damageNTSB MIA86FA202Accident · 1 fatalField investigationFinal reportGrumman G-164B · Sidon, MSThe right wings of the ag operator's bi-plane collided with the ground support cables of a 322 ft high microwave tower while on a base leg for landing. The right wings separated & the acft crashed & burned killing the plt. The 25000 hr plt knew of the tower…Jul 10, 1986 · N48593 · DestroyedNTSB 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…Aug 9, 1984 · N8961H · DestroyedNTSB 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…Aug 1, 1984 · N6689Q · Substantial damageNTSB 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…Jul 28, 1984 · N6711Q · DestroyedNTSB 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.Jun 23, 1984 · N6600K · DestroyedNTSB 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…Jun 3, 1984 · N6618Q · Substantial damageNTSB DEN83LA170Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Page, NDWhile spraying at dusk, the plt was concerned about injuring a 'non-target crop' across the road to the south from the field that was being sprayed. He stated that an irrigation system was sitting pointed southwest, and that as he was entering a swath to the…Jun 29, 1983 · N6652Q · Substantial damageNTSB LAX82DA365Accident · No injuriesFinal reportGrumman G-164B · Delano, CAAircraft collided with wires during spraying of grapes. No air or ground survey made which was a normal procedure. Work pressure created the deviation.Sep 27, 1982 · N48482 · DestroyedNTSB FTW82DRA22Accident · Serious injuriesFinal reportGrumman G-164 · Hardin, TXThe pilot reported that he struck power lines while flying under them during a swath run. Also, he indicated that a thunderstorm was rapidly approaching the field at the time the accident occurred.Jun 25, 1982 · N8354K · Substantial damage