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

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 WPR11LA384](https://openairdocs.org/ntsb/WPR11LA384.md): Grumman Acft ENG Cor-Schweizer G-164B · Oakesdale, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 15, 2011 · N6628Q · Substantial damage
  > The pilot's decision to land with a high tailwind, which resulted in a nose-over.
- [NTSB WPR11CA261](https://openairdocs.org/ntsb/WPR11CA261.md): Grumman Acft ENG Cor-Schweizer G-164B · Pullman, WA · Accident · Minor injuries · Data collection · Final report · Jun 15, 2011 · N8376K · Substantial damage
  > The pilot's failure to maintain clearance from power lines while maneuvering.
- [NTSB WPR10LA139](https://openairdocs.org/ntsb/WPR10LA139.md): Grumman Acft ENG Cor-Schweizer G-164B · Colfax, WA · Accident · No injuries · Limited investigation · Final report · Feb 18, 2010 · N6774Q · Substantial damage
  > A partial loss of engine power due to carburetor ice as a result of the pilot's failure to use carburetor heat.
- [NTSB WPR10LA122](https://openairdocs.org/ntsb/WPR10LA122.md): Grumman Acft ENG Cor-Schweizer G-164B · Pullman, WA · Accident · No injuries · Limited investigation · Final report · Jan 30, 2010 · N6799K · Substantial damage
  > A partial loss of engine power during takeoff due to a bird's nest being sucked into the induction air ducting.
- [NTSB WPR09LA227](https://openairdocs.org/ntsb/WPR09LA227.md): Grumman G-164B · Colfax, WA · Accident · No injuries · Limited investigation · Final report · May 4, 2009 · N6628Q · Substantial damage
  > A total loss of engine power due to excessive wear in several carburetor components that led to a malfunction of the carburetor.
- [NTSB LAX08CA082](https://openairdocs.org/ntsb/LAX08CA082.md): Grumman-Schweizer G-164B · Colfax, WA · Accident · No injuries · Data collection · Final report · Mar 22, 2008 · N63D · Substantial damage
  > The pilot's inadequate compensation for the wind conditions, failure to attain and maintain an adequate airspeed that resulted in a stall mush, and, the subsequent failure to maintain terrain and obstacle clearance during the takeoff initial climb.…
- [NTSB SEA06CA145](https://openairdocs.org/ntsb/SEA06CA145.md): Grumman-Schweizer G-164B · Lamont, WA · Accident · Minor injuries · Data collection · Final report · Jul 23, 2006 · N8376K · Substantial damage
  > The pilot's failure to maintain terrain clearance while maneuvering.
- [NTSB SEA01LA149](https://openairdocs.org/ntsb/SEA01LA149.md): Grumman G-164B · Quincy, WA · Accident · No injuries · Limited investigation · Final report · Aug 11, 2001 · N6774Q · Substantial damage
  > The failure of the impeller assembly as a consequence of impeller rub and binding within the impeller collector case for undetermined reasons.
- [NTSB SEA00LA099](https://openairdocs.org/ntsb/SEA00LA099.md): Grumman-Schweizer G-164B · Colfax, WA · Accident · Serious injuries · Limited investigation · Final report · Jun 5, 2000 · N6549K · Substantial damage
  > The pilots failure to maintain clearance from power transmission lines.
- [NTSB SEA98LA095](https://openairdocs.org/ntsb/SEA98LA095.md): Grumman-Schweizer G-164B · Starbuck, WA · Accident · Serious injuries · Limited investigation · Final report · Jun 12, 1998 · N8252K · Destroyed
  > The pilot-in-command's failure to maintain adequate visual lookout. A contributing factor was the unmarked transmission lines.
- [NTSB SEA98LA038](https://openairdocs.org/ntsb/SEA98LA038.md): Grumman-Schweizer G-164B · Stanwood, WA · Accident · No injuries · Limited investigation · Final report · Feb 19, 1998 · N48493 · Substantial damage
  > The pilot's failure to apply carburetor heat. Factors included carburetor icing conditions and soft terrain in the forced landing area.
- [NTSB SEA95LA188](https://openairdocs.org/ntsb/SEA95LA188.md): Grumman G-164B · Ephrata, WA · Accident · No injuries · Limited investigation · Final report · Jul 28, 1995 · N6774Q · Substantial damage
  > The pilot's inadequate compensation for wind conditions. Factors contributing to the accident were crosswinds and gusts.
- [NTSB SEA94LA072](https://openairdocs.org/ntsb/SEA94LA072.md): Grumman G-164 · Walla Walla, WA · Accident · No injuries · Limited investigation · Final report · Mar 2, 1994 · N6612Q · Substantial damage
  > Unsuitable terrain for a forced landing after a loss of power due to a failed engine cylinder. Factors include a partial magneto failure.
- [NTSB SEA93LA168](https://openairdocs.org/ntsb/SEA93LA168.md): Cessna A150L · Ephrata, WA · Accident · Serious injuries · Limited investigation · Final report · Aug 1, 1993 · N5958J · 2 aircraft · Destroyed
  > Inadequate visual lookout by both pilots, resulting in their failure to see-and-avoid each other's aircraft. A factor related to the accident was: failure of the Grumman 164B pilot to adequately monitor the UNICOM frequency.
- [NTSB SEA91LA178](https://openairdocs.org/ntsb/SEA91LA178.md): Grumman G-164-B · Pullman, WA · Accident · No injuries · Limited investigation · Final report · Jul 18, 1991 · N6657Q · Substantial damage
  > The pilot's failure to maintain runway alignment. Factors include high vegetation growing close to the runway.
- [NTSB SEA91LA136](https://openairdocs.org/ntsb/SEA91LA136.md): Schweizer G-164B · Wilson Creek, WA · Accident · No injuries · Limited investigation · Final report · May 27, 1991 · N8407K · Substantial damage
  > The loss of engine power in flight due to improper overhaul of the carburetor float assembly fulcrum screw, shutting off fuel flow to the engine.
- [NTSB SEA88LA098](https://openairdocs.org/ntsb/SEA88LA098.md): Grumman G-164 · Ritzville, WA · Accident · No injuries · Limited investigation · Final report · May 20, 1988 · N6963K · Destroyed
  > While on an aerial applications flight, the pilot was climbing to clear power lines when a whirlwind was encountered. The aircraft struck a power pole and descended onto the ground.
- [NTSB SEA84LA133](https://openairdocs.org/ntsb/SEA84LA133.md): Grumman G-164B-450 · Pullman, WA · Accident · Minor injuries · Limited investigation · Final report · Jun 14, 1984 · N6798Q · Destroyed
  > After making a swath run, the acft entered a steep turn with an airspeed of about 75 mph. According to two witnesses, the eng lost power & then the acft crashed. The plt was unable to remember what had happened from the time he entered the turn until he…
- [NTSB SEA83LA206](https://openairdocs.org/ntsb/SEA83LA206.md): Grumman G-164B · Selah, WA · Accident · No injuries · Limited investigation · Final report · Sep 28, 1983 · N6674Q · Substantial damage
  > While landing on a road, during an aerial application operation, the acft nosed over. According to the plt, the brakes had not released after he had released the toe brakes. He reported that he found the parking brake midway between the on & off positions.
- [NTSB SEA83LA063](https://openairdocs.org/ntsb/SEA83LA063.md): Grumman 164B · Toppenish, WA · Accident · No injuries · Limited investigation · Final report · Mar 16, 1983 · N6674Q · Substantial damage
  > The aircraft nosed over in a ditch during a landing on a gravel road after an aerial application flight. The pilot said that he lost directional control during landing rollout and one main gear went into a ditch. The aircraft then nosed over and came to rest…
- [NTSB SEA77DYP40](https://openairdocs.org/ntsb/SEA77DYP40.md): Grumman G-164B · Quincy, WA · Accident · No injuries · Closed · Aug 15, 1977 · N48423 · 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."eventStateOrRegion" = 'WA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3952802'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=3952802&state=WA

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