# NTSB investigations: Schweizer G-164B, CA

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 WPR25LA158](https://openairdocs.org/ntsb/WPR25LA158.md): Schweizer G-164B · Butte City, CA · Accident · Minor injuries · Class 4 · Limited · Final report · May 9, 2025 · N7503L · Substantial damage
  > The pilot’s use of engine beta prior to ensuring the tailwheel was on the ground during landing roll.
- [NTSB ANC24FA038](https://openairdocs.org/ntsb/ANC24FA038.md): Schweizer G-164B · Richvale, CA · Accident · 1 fatal · Class 3 · Field · Final report · May 28, 2024 · N3629Y · Substantial damage
  > The pilot’s failure to maintain clearance from a trailer located on the edge of the runway during takeoff. Contributing to the accident was the location of the trailer on the side of the runway.
- [NTSB WPR21LA299](https://openairdocs.org/ntsb/WPR21LA299.md): Schweizer G-164B · Tracy, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 30, 2021 · N3629F · Substantial damage
  > A loss of thrust during a low-level agricultural application flight, which resulted in a descent and impact with terrain. The reason for the loss of thrust could not be determined based on available information.
- [NTSB WPR20LA175](https://openairdocs.org/ntsb/WPR20LA175.md): Grumman G164 · Lincoln, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 4, 2020 · N8486K · Substantial damage
  > The pilot’s loss of directional control on takeoff for undetermined reasons.
- [NTSB WPR19LA137](https://openairdocs.org/ntsb/WPR19LA137.md): Grumman G164 · Sutter, CA · Accident · No injuries · Class 3 · Limited · Final report · May 5, 2019 · N3630D · Substantial damage
  > A loss of engine power due to the in-flight separation of the fuel control unit interconnect rod for reasons that could not be determined due to lack of available evidence.
- [NTSB WPR18LA113](https://openairdocs.org/ntsb/WPR18LA113.md): Schweizer G 164B · Stockton, CA · Accident · 1 fatal · Limited investigation · Final report · Mar 27, 2018 · N3629E · Substantial damage
  > The pilot's failure to maintain clearance with power lines while maneuvering during an aerial application flight.
- [NTSB WPR18LA015](https://openairdocs.org/ntsb/WPR18LA015.md): Schweizer G 164B · Tracy, CA · Accident · No injuries · Limited investigation · Final report · Oct 24, 2017 · N8494K · Substantial damage
  > The pilot's failure to maintain directional control of the airplane during the landing roll.
- [NTSB WPR14LA322](https://openairdocs.org/ntsb/WPR14LA322.md): Schweizer G 164B · Tulelake, CA · Accident · 1 fatal · Limited investigation · Final report · Aug 1, 2014 · N3627R · Destroyed
  > The pilot's failure to maintain clearance from power lines while maneuvering during low-altitude operations.
- [NTSB WPR14LA201](https://openairdocs.org/ntsb/WPR14LA201.md): Schweizer G 164B · Biggs, CA · Accident · No injuries · Limited investigation · Final report · May 13, 2014 · N3633C · Substantial damage
  > The assembler’s improper fabrication of a fuel line (hose) and the subsequent failure to verify that it was not occluded, which resulted in fuel starvation and a total loss of engine power during takeoff.
- [NTSB WPR13LA223](https://openairdocs.org/ntsb/WPR13LA223.md): Schweizer G-164B · Biggs, CA · Accident · 1 fatal · Limited investigation · Final report · May 9, 2013 · N8214S · Minor damage
  > The pilot’s failure to adequately monitor the runway environment during taxi, which resulted in an on-ground collision.
- [NTSB WPR11LA320](https://openairdocs.org/ntsb/WPR11LA320.md): Schweizer G-164B · Yuba City, CA · Accident · No injuries · Limited investigation · Final report · Jul 9, 2011 · N7503L · Substantial damage
  > High-cycle fatigue on the 1st-stage compressor blade retaining ring, which resulted in the ring’s fracture and a subsequent loss of engine power.
- [NTSB WPR11LA273](https://openairdocs.org/ntsb/WPR11LA273.md): Schweizer G-164B · Marysville, CA · Accident · No injuries · Limited investigation · Final report · Jun 21, 2011 · N3627G · Substantial damage
  > The separation of the right main landing gear during takeoff, due to fatigue.
- [NTSB WPR10LA253](https://openairdocs.org/ntsb/WPR10LA253.md): Schweizer G-164B · Robbins, CA · Accident · Serious injuries · Limited investigation · Final report · May 21, 2010 · N3633C · Substantial damage
  > The failure of the wheel hub flange, which allowed the over size tire to expand and impinge on the brake disc and caliper, which resulted in a loss of control during the landing.
- [NTSB WPR10LA125](https://openairdocs.org/ntsb/WPR10LA125.md): Schweizer G164B · Byron, CA · Accident · No injuries · Limited investigation · Final report · Feb 23, 2010 · N8494K · Substantial damage
  > A loss of engine power due to carburetor icing as a result of the pilot's failure to use carburetor heat.
- [NTSB WPR09CA114](https://openairdocs.org/ntsb/WPR09CA114.md): Schweizer G-164B · Buttonwillow, CA · Accident · No injuries · Data collection · Final report · Feb 12, 2009 · N3626T · Substantial damage
  > A loss of engine power due to the number four cylinder base nuts becoming loose, allowing the cylinder to detach from the engine case. Contributing to the accident was the pilot's impaired visibility due to smoke during the forced landing.
- [NTSB LAX07LA168](https://openairdocs.org/ntsb/LAX07LA168.md): Schweizer G-164B · Colusa, CA · Accident · 1 fatal · Limited investigation · Final report · May 13, 2007 · N3633Q · Destroyed
  > The pilot's failure to maintain clearance from wires.
- [NTSB LAX04LA267](https://openairdocs.org/ntsb/LAX04LA267.md): Schweizer G-164B · Richvale, CA · Accident · No injuries · Limited investigation · Final report · Jun 7, 2004 · N3626T · Substantial damage
  > the loss of engine power during takeoff due to the engine's deteriorated fuel control unit's inner drive shaft bearing. The reason for the bearing's deteriorated condition could not be determined.
- [NTSB LAX02LA216](https://openairdocs.org/ntsb/LAX02LA216.md): Grumman-Schweizer G-164B · Sacramento, CA · Accident · No injuries · Limited investigation · Final report · Jul 6, 2002 · N3631B · Substantial damage
  > Propeller blade failure due to fatigue. A contributing factor was the rising embankment.
- [NTSB LAX01LA228](https://openairdocs.org/ntsb/LAX01LA228.md): Schweizer G-164B · Meridian, CA · Accident · No injuries · Limited investigation · Final report · Jun 27, 2001 · N2236F · Substantial damage
  > The pilot's misjudged and inadequate altitude while maneuvering during an aerial application flight.
- [NTSB LAX00LA344](https://openairdocs.org/ntsb/LAX00LA344.md): Schweizer G-164B · Corcoran, CA · Accident · No injuries · Limited investigation · Final report · Sep 21, 2000 · N3626T · Substantial damage
  > The pilot's inadequate preflight inspection and his failure to maintain directional control during takeoff. Factors were the pilot's failure to ensure that the fuel tank cover was replaced properly, fuel contamination of the windscreen, and the sun angle that…
- [NTSB LAX00LA278](https://openairdocs.org/ntsb/LAX00LA278.md): Schweizer G-164B · Tracy, CA · Accident · No injuries · Limited investigation · Final report · Jul 26, 2000 · N3629E · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB LAX00LA162](https://openairdocs.org/ntsb/LAX00LA162.md): Schweizer G-164B · Lodi, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 20, 2000 · N3629F · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB LAX97LA212](https://openairdocs.org/ntsb/LAX97LA212.md): Schweizer G-164B · Rio Linda, CA · Accident · Serious injuries · Limited investigation · Final report · Jun 16, 1997 · N3631G · Substantial damage
  > the pilot's inadequate preflight planning/preparation by failing to ensure that sufficient airspeed would be obtained and/or maintained to remain clear of obstacles at the departure end of the runway. The obstacles (power lines & poles) were a related factor.
- [NTSB LAX97LA121](https://openairdocs.org/ntsb/LAX97LA121.md): Grumman G-164B · Winters, CA · Accident · No injuries · Limited investigation · Final report · Mar 11, 1997 · N36265 · Substantial damage
  > the failure of the engine cylinder head assembly due to operational fatigue.
- [NTSB LAX96LA214](https://openairdocs.org/ntsb/LAX96LA214.md): Schweizer G-164B · Corning, CA · Accident · Serious injuries · Limited investigation · Final report · May 30, 1996 · N3626D · Substantial damage
  > the pilot misjudged the airplane's clearance from wires he was flying beneath. A contributing factor was the presence of light turbulence.
- [NTSB LAX94LA299](https://openairdocs.org/ntsb/LAX94LA299.md): Schweizer G-164B · Live Oak, CA · Accident · No injuries · Limited investigation · Final report · Jul 27, 1994 · N3627Q · Substantial damage
  > the improper adjustment of the fuel control unit by contract maintenance personnel.
- [NTSB SEA94LA117](https://openairdocs.org/ntsb/SEA94LA117.md): Schweizer G-164B · Yuba City, CA · Accident · No injuries · Limited investigation · Final report · May 12, 1994 · N8214S · Substantial damage
  > An inadvertent stall/mush after takeoff. The over-weight loading of the aircraft was a factor.
- [NTSB LAX94LA213](https://openairdocs.org/ntsb/LAX94LA213.md): Schweizer G-164B · Gridley, CA · Accident · No injuries · Limited investigation · Final report · May 8, 1994 · N3629E · Substantial damage
  > a loss of engine power due to a cracked engine cylinder head.
- [NTSB LAX94LA133](https://openairdocs.org/ntsb/LAX94LA133.md): Schweizer G-164B · Clarksburg, CA · Accident · No injuries · Limited investigation · Final report · Feb 23, 1994 · N36265 · Substantial damage
  > The total failure of the no. 1 cylinder due to fatigue resulting from an improperly adjusted mixture causing detonation. The soft, wet plowed field was a factor in this accident.
- [NTSB LAX94LA019](https://openairdocs.org/ntsb/LAX94LA019.md): Schweizer G-164B · Arvin, CA · Accident · No injuries · Limited investigation · Final report · Oct 19, 1993 · N7501K · Substantial damage
  > the loss of power for undetermined reasons.
- [NTSB LAX92LA126](https://openairdocs.org/ntsb/LAX92LA126.md): Grumman G-164B · Dixon, CA · Accident · No injuries · Limited investigation · Final report · Feb 25, 1992 · N3633C · Substantial damage
  > The pilot's premature lift-off. Contributing to the accident was the inadvertent stall/mush and the soft dirt airstrip.
- [NTSB LAX91LA362](https://openairdocs.org/ntsb/LAX91LA362.md): Schweizer G164B · Verona, CA · Accident · No injuries · Limited investigation · Final report · Aug 19, 1991 · N7501K · Substantial damage
  > The pilot's improper planning/decision to depart from a runway with high vegetation along the edge and subsequent collision with terrain.
- [NTSB LAX90DVG01](https://openairdocs.org/ntsb/LAX90DVG01.md): Schweizer G-164B · Grimes, CA · Accident · No injuries · Final report · Nov 16, 1989 · N3633Q · Substantial damage
  > Failure of the counter weight bracket to the propeller assembly.
- [NTSB LAX89DVG07](https://openairdocs.org/ntsb/LAX89DVG07.md): Schweizer G-164B · Willows, CA · Accident · No injuries · Final report · Jul 4, 1989 · N3627G · Substantial damage
  > Failure of the connecting rod on #1 cylinder of the aircraft powerplant.
- [NTSB LAX89DVG06](https://openairdocs.org/ntsb/LAX89DVG06.md): Grumman G-164B · Davis, CA · Accident · No injuries · Final report · May 14, 1989 · N3629Y · Substantial damage
  > The pilot failed to properly use his brakes during the off airport landing.
- [NTSB LAX88DVG09](https://openairdocs.org/ntsb/LAX88DVG09.md): Schweizer G-164B · Robbins, CA · Accident · No injuries · Final report · Jul 30, 1988 · N3633C · Substantial damage
  > During landing roll, after an aerial application flight, the sprayboom became entangled in weeds. The airplane ground looped and nosed over. There were no reported mechanical failures or malfunctions of the airplane at the time of the accident.
- [NTSB LAX88DVG05](https://openairdocs.org/ntsb/LAX88DVG05.md): Schweizer G-164B · Gridley, CA · Accident · No injuries · Final report · Jun 20, 1988 · N8487K · Destroyed
- [NTSB LAX88DVG03](https://openairdocs.org/ntsb/LAX88DVG03.md): Schweizer G-164B · Gridley, CA · Accident · No injuries · Final report · May 2, 1988 · N3627Q · Substantial damage
  > During an agricultural operation, the engine quit at approximately 50 feet AGL. The airplane was landed on a dirt field and nosed over. Inspection of the engine revealed that the left magneto drive gear teeth were missing and the right magneto drive gear was…

## 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" = 'CA' 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 ('8059055'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=8059055&state=CA

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