# NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164A: Collision with terr/obj (non-CFIT)

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 WPR23LA305](https://openairdocs.org/ntsb/WPR23LA305.md): Grumman Acft ENG Cor-Schweizer G-164A · Davis, CA · Accident · 1 fatal · Class 3 · Limited · Final report · Aug 6, 2023 · N5450 · Substantial damage
  > An inflight loss of control during a low altitude operation for undetermined reasons.
- [NTSB ERA22LA297](https://openairdocs.org/ntsb/ERA22LA297.md): Grumman G-164A · Hopewell Township, NJ · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 2, 2022 · N8923H · Substantial damage
  > A partial loss of engine power while maneuvering at low altitude due to a failure of the airplane’s supercharger.
- [NTSB GAA19CA270](https://openairdocs.org/ntsb/GAA19CA270.md): Grumman G164 · Lane City, TX · Accident · No injuries · Data collection · Final report · May 15, 2019 · N4865 · Destroyed
  > The pilot's failure to maintain clearance from power lines during low-altitude maneuvering.
- [NTSB ERA16LA319](https://openairdocs.org/ntsb/ERA16LA319.md): Grumman G164 · Chestertown, MD · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 18, 2016 · N75EP · Substantial damage
  > Loss of engine power due to a failure of the No. 3 cylinder head, which resulted in a forced landing and collision with ground equipment.
- [NTSB CEN16CA277](https://openairdocs.org/ntsb/CEN16CA277.md): Grumman Acft ENG Cor-Schweizer G 164A · Topeka, KS · Accident · No injuries · Data collection · Final report · Jul 21, 2016 · N7997 · Substantial damage
  > The pilot’s failure to maintain clearance from a wire during an agricultural flight.
- [NTSB GAA15CA113](https://openairdocs.org/ntsb/GAA15CA113.md): Grumman Acft ENG Cor-Schweizer G 164A · Bakersfield, CA · Accident · No injuries · Data collection · Final report · Jun 9, 2015 · N8372 · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll, resulting in a runway excursion, and a collision with terrain.
- [NTSB WPR15LA160](https://openairdocs.org/ntsb/WPR15LA160.md): Grumman Acft ENG Cor-Schweizer G 164A · Maxwell, CA · Accident · No injuries · Limited investigation · Final report · May 13, 2015 · N8875H · Substantial damage
  > The pilot’s improper preflight inspection and fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB CEN13LA422](https://openairdocs.org/ntsb/CEN13LA422.md): Grumman Aircraft Cor-Schweizer G-164A · Elmira, MI · Accident · Serious injuries · Limited investigation · Final report · Jul 17, 2013 · N8719H · Substantial damage
  > The pilot's failure to maintain clearance from a line of trees while applying agricultural product to a field.
- [NTSB CEN12LA440](https://openairdocs.org/ntsb/CEN12LA440.md): Grumman Acft ENG Cor-Schweizer G-164A · Darksville, MO · Accident · 1 fatal · Limited investigation · Final report · Jul 13, 2012 · N6846Q · Substantial damage
  > The pilot did not maintain clearance from a tree line at the completion of an agricultural spray run.
- [NTSB WPR12LA233](https://openairdocs.org/ntsb/WPR12LA233.md): Grumman Acft ENG Cor-Schweizer G-164A · Wilton, CA · Accident · No injuries · Limited investigation · Final report · May 27, 2012 · N8380 · Substantial damage
  > The failure of the hopper gate mechanism and subsequent sulfur fire during a low-level maneuver.
- [NTSB CEN11LA563](https://openairdocs.org/ntsb/CEN11LA563.md): Grumman Acft ENG Cor-Schweizer G-164A · Mansfield, SD · Accident · No injuries · Limited investigation · Final report · Aug 10, 2011 · N127FC · Substantial damage
  > The loss of engine power due to debris in the engine air intake system.
- [NTSB WPR11LA238](https://openairdocs.org/ntsb/WPR11LA238.md): Grumman G-164A · Hazelton, ID · Accident · No injuries · Limited investigation · Final report · May 28, 2011 · N9724 · Substantial damage
  > A total loss of engine power during low-level maneuvering due to an excessively worn carburetor.
- [NTSB ERA11CA260](https://openairdocs.org/ntsb/ERA11CA260.md): Grumman Acft ENG Cor-Schweizer G-164A · Belhaven, NC · Accident · Minor injuries · Data collection · Final report · Apr 23, 2011 · N8896H · Substantial damage
  > The pilot's failure to maintain adequate clearance above crops while performing an aerial application flight.
- [NTSB CEN09LA574](https://openairdocs.org/ntsb/CEN09LA574.md): Grumman Acft ENG Cor-Schweizer G-164A · Kimball, NE · Accident · No injuries · Limited investigation · Final report · Sep 8, 2009 · N6761Q · Substantial damage
  > A loss of engine power due to improper installation of an oil line fitting resulting in oil depletion.
- [NTSB CEN09CA522](https://openairdocs.org/ntsb/CEN09CA522.md): Grumman Acft ENG Cor-Schweizer G-164A · Evansville, WI · Accident · No injuries · Data collection · Final report · Aug 12, 2009 · N9794 · Substantial damage
  > A jam of the elevator flight control for undetermined reasons.
- [NTSB CEN09CA516](https://openairdocs.org/ntsb/CEN09CA516.md): Grumman Acft ENG Cor-Schweizer G-164A · Harlan, IA · Accident · No injuries · Data collection · Final report · Aug 10, 2009 · N4598 · Substantial damage
  > The pilot's failure to perform accurate weight and balance calculations which resulted in exceeding the maximum takeoff weight and the airplane's climb capability.
- [NTSB SEA08CA183](https://openairdocs.org/ntsb/SEA08CA183.md): Grumman Acft Eng G-164A · Hazelton, ID · Accident · Minor injuries · Data collection · Final report · Aug 18, 2008 · N6702Q · Substantial damage
  > The pilot's inadequate compensation for the tailwind and failure to attain and maintain airspeed, which resulted in an inadvertent stall. The tailwind was a contributing factor.
- [NTSB DFW08CA195](https://openairdocs.org/ntsb/DFW08CA195.md): Grumman 164A · Lake Providence, LA · Accident · Minor injuries · Data collection · Final report · Jul 22, 2008 · N7249 · Substantial damage
  > The pilot's failure to maintain control of the airplane while maneuvering during an aerial application. Contributing to the accident was the wind gust.
- [NTSB DEN08CA091](https://openairdocs.org/ntsb/DEN08CA091.md): Grumman-Schweizer G-164A · East Bernard, TX · Accident · No injuries · Data collection · Final report · May 20, 2008 · N5083 · Substantial damage
  > Two engine cylinder exhaust valves stuck open for an undetermined reason, resulting in a loss of engine power.
- [NTSB SEA08CA093](https://openairdocs.org/ntsb/SEA08CA093.md): Grumman G-164A · Dayton, WA · Accident · Minor injuries · Data collection · Final report · Mar 25, 2008 · N48629 · Substantial damage
  > The pilot's inadequate compensation for the wind conditions and failure to maintain an adequate airspeed. A contributing factor was the sudden windshift.

## 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_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '470' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/470/sequence?model=3952801

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