# Fatal NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164A

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 WPR24FA213](https://openairdocs.org/ntsb/WPR24FA213.md): Grumman Acft ENG Cor-Schweizer G-164A · Chamberino, NM · Accident · 1 fatal · Class 3 · Field · Final report · Jun 25, 2024 · N9709 · Destroyed
  > An aerodynamic stall and loss of control for reasons that could not be determined based on the available information.
- [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 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 LAX98LA240](https://openairdocs.org/ntsb/LAX98LA240.md): Grumman G-164A · Tracy, CA · Accident · 1 fatal · Limited investigation · Final report · Jul 22, 1998 · N7442 · Destroyed
  > The failure of the pilot to maintain an adequate clearance with the telephone wires.
- [NTSB FTW97LA136](https://openairdocs.org/ntsb/FTW97LA136.md): Grumman G-164A · Swifton, AR · Accident · 1 fatal · Limited investigation · Final report · Mar 22, 1997 · N8922H · Destroyed
  > the pilot's improper in-flight planning/decision and failure to maintain positive control of the airplane, while performing an aerobatic maneuver.
- [NTSB LAX96LA204](https://openairdocs.org/ntsb/LAX96LA204.md): Grumman G-164 · Colusa, CA · Accident · 1 fatal · Limited investigation · Final report · May 25, 1996 · N48379 · Destroyed
  > failure of the pilot to remain clear of the power lines. Factors relating to the accident were: Lack of visual cues at dawn, and the power lines.
- [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 FTW93LA173](https://openairdocs.org/ntsb/FTW93LA173.md): Grumman G-164A · Ganado, TX · Accident · 1 fatal · Limited investigation · Final report · Jun 2, 1993 · N6752Q · Destroyed
  > The pilot's failure to maintain clearance with the power lines
- [NTSB CHI93DCQ01](https://openairdocs.org/ntsb/CHI93DCQ01.md): Grumman G-164A · Liberal, KS · Accident · 1 fatal · Final report · May 30, 1993 · N8385 · Destroyed
  > the pilot's failure to maintain clearance with the powerlines. A factor related to the accident were the powerlines which were contacted during the aerial application operation.
- [NTSB LAX93LA200](https://openairdocs.org/ntsb/LAX93LA200.md): Grumman 164A · Biggs, CA · Accident · 1 fatal · Limited investigation · Final report · May 5, 1993 · N5249 · Destroyed
  > Failure of the number 2 engine cylinder. A factor related to the accident was the lack of altitude for the pilot to make a successfull forced landing.
- [NTSB LAX92LA274](https://openairdocs.org/ntsb/LAX92LA274.md): Grumman G-164A · Tulare, CA · Accident · 1 fatal · Limited investigation · Final report · Jul 1, 1992 · N8636H · Destroyed
  > An inflight hopper compartment fire due to the incompatibility of the chemical loads, and, the failure of the operator follow the cautionary directives of the chemical manufacturer.
- [NTSB FTW90DPG09](https://openairdocs.org/ntsb/FTW90DPG09.md): Grumman G164A · Osceola, AR · Accident · 1 fatal · Final report · Aug 16, 1990 · N7864 · Destroyed
  > The pilot's failure to maintain proper clearance from the power lines.
- [NTSB FTW89DRD03](https://openairdocs.org/ntsb/FTW89DRD03.md): Schweizer G-164A · Maxie, LA · Accident · 1 fatal · Final report · May 23, 1989 · N48467 · Destroyed
  > Failure of the pilot to maintain clearance from the trees. A factor related to the accident was: the presence of trees near the field where fertilizer was to be dispensed.
- [NTSB FTW87DRD11](https://openairdocs.org/ntsb/FTW87DRD11.md): Grumman G-164A · Bastrop, LA · Accident · 1 fatal · Final report · Aug 18, 1987 · N9685 · Minor damage
  > Three flagmen were working with one spray plane and three fields. On this pass, two of the flagmen moved to the proper positions but the other one had moved too FAR laterally. The pilot stated to the sheriff that he had observed the flagman stepping off the…
- [NTSB MIA87FA160](https://openairdocs.org/ntsb/MIA87FA160.md): Schweizer G-164A · Dundee, MS · Accident · 1 fatal · Field investigation · Final report · May 19, 1987 · N4654 · Destroyed
  > While spraying a rice field, the acft was flying across svrl small dirt banks that had been furrowed for water ctl. Drg a swath run, it struck 3 furrowed banks that were close together, flipped over as it crashed, then burned. Witnessesrprtd the eng was…
- [NTSB DEN87FA091](https://openairdocs.org/ntsb/DEN87FA091.md): Grumman G-164A · Lamar, CO · Accident · 1 fatal · Field investigation · Final report · Apr 8, 1987 · N8369 · 2 aircraft · Destroyed
  > The aircraft had completed a formation aerial application operation and were in the process of single airplane spraying around the perimeters of a field. They collided at 10 feet above the ground on perpendicular flight paths, descended out of control and…
- [NTSB MIA87FA022](https://openairdocs.org/ntsb/MIA87FA022.md): Grumman G-164A · Orlando, FL · Accident · 1 fatal · Field investigation · Final report · Nov 5, 1986 · N711WW · Destroyed
  > While the plt was making a banner pick-up, witnesses saw the acft engage the banner & enter a climb. The plt released the banner, then the acft mushed into a partially built hangar, crashed & burned. The plt, who was on fire, exited the rgt canopy hatch.…
- [NTSB FTW86FA066](https://openairdocs.org/ntsb/FTW86FA066.md): Grumman G164A · Hankamer, TX · Accident · 2 fatal · Field investigation · Final report · Apr 15, 1986 · N8751H · 2 aircraft · Destroyed
  > Two Grumman ag cats operated by the same air service collided in mid air. The accident occurred as one was departing and the other was returning to a temporary air strip adjacent to the fields they were fertilizing. Witnesses indicated that both pilot…
- [NTSB FTW84LA145](https://openairdocs.org/ntsb/FTW84LA145.md): Grumman G-164A · Abbeville, LA · Accident · 1 fatal · Limited investigation · Final report · Feb 22, 1984 · N9728 · Destroyed
  > The 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…
- [NTSB ATL82FIG07](https://openairdocs.org/ntsb/ATL82FIG07.md): Grumman G-164A · Frederick, MD · Accident · 1 fatal · Final report · May 27, 1982 · N6620Q · Substantial damage
  > The pilot reported that 1 to 2 ounces of water was drained from the low point fuel sump, but no water was detected from the other sumps. He stated that he drained the sump until no water was detected. During the flight, the engine surged twice, then lost…
- [NTSB FTW82FPG12](https://openairdocs.org/ntsb/FTW82FPG12.md): Grumman G-164 · Ethel, AR · Accident · 1 fatal · Final report · May 24, 1982 · N5376 · Destroyed
  > The acft collided with power lines during the start of a swath run.
- [NTSB FTW81FPG45](https://openairdocs.org/ntsb/FTW81FPG45.md): Grumman G-164A · Lonoke, AR · Accident · 1 fatal · Closed · Jun 12, 1981 · N7219 · Destroyed
- [NTSB FTW77FPG42](https://openairdocs.org/ntsb/FTW77FPG42.md): Grumman G-164A · Dumas, AR · Accident · 1 fatal · Closed · Jun 4, 1977 · N7363 · Destroyed
- [NTSB MIA77FKJ01](https://openairdocs.org/ntsb/MIA77FKJ01.md): Grumman G-164 · Pansey, AL · Accident · 1 fatal · Closed · Oct 2, 1976 · N23RA · Destroyed
- [NTSB LAX75FVA73](https://openairdocs.org/ntsb/LAX75FVA73.md): Grumman G-164A · Taft, CA · Accident · 1 fatal · Closed · Jun 21, 1975 · N9783 · Destroyed
- [NTSB FTW75FRA22](https://openairdocs.org/ntsb/FTW75FRA22.md): Grumman G-164A · El Campo, TX · Accident · 1 fatal · Closed · Mar 28, 1975 · N41TS · Destroyed
- [NTSB FTW74FRA31](https://openairdocs.org/ntsb/FTW74FRA31.md): Grumman G-164A · Buckeye, TX · Accident · 1 fatal · Closed · Mar 6, 1974 · N5458 · 2 aircraft · Destroyed
- [NTSB FTW72FPG84](https://openairdocs.org/ntsb/FTW72FPG84.md): Grumman G-164A · Crawfordsvlle, AR · Accident · 2 fatal · Closed · Jun 11, 1972 · N7234 · Substantial damage

## 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."highestInjuryLevel" = 'Fatal'
  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
```

This list as a web page: https://openairdocs.org/ntsb?fatal=1&model=3952801

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