# NTSB investigations: Grumman Acft ENG Cor-Schweizer G-164B, 1990

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 FTW90DPG14](https://openairdocs.org/ntsb/FTW90DPG14.md): Grumman G-164B · Dumas, AR · Accident · Minor injuries · Final report · Sep 4, 1990 · N48602 · Substantial damage
  > The inadvertent stall encountered during the turn to reverse direction.
- [NTSB LAX90DVA10](https://openairdocs.org/ntsb/LAX90DVA10.md): Grumman-Schweizer G-164B · Westley, CA · Accident · Serious injuries · Final report · Aug 19, 1990 · N6774Q · Destroyed
  > The pilot's failure maintain obstacle clearance.
- [NTSB CHI90LA219](https://openairdocs.org/ntsb/CHI90LA219.md): Grumman G-164B · Columbus, NE · Accident · No injuries · Limited investigation · Final report · Aug 9, 1990 · N6745K · Substantial damage
  > Standing water on the approach end of the runway.
- [NTSB LAX90DVA04](https://openairdocs.org/ntsb/LAX90DVA04.md): Grumman-Schweizer G-164B · Buttonwillow, CA · Accident · Serious injuries · Final report · Jun 8, 1990 · N6725K · Destroyed
  > Failure of the #7 cylinder due to a pre-existing crack. The terrain condition was a related factor.
- [NTSB FTW90DRD10](https://openairdocs.org/ntsb/FTW90DRD10.md): Grumman G-164B · Mamou, LA · Accident · No injuries · Final report · Jun 4, 1990 · N6693Q · Substantial damage
  > Pilot misjudged wind information. Factors contributing to the accident were the tailwind, the trees and the levee.
- [NTSB CHI90DEV04](https://openairdocs.org/ntsb/CHI90DEV04.md): Grumman G-164B · Princeton, IL · Accident · No injuries · Final report · May 18, 1990 · N6695Q · Substantial damage
  > The pilot-in-command's failure to maintain adequate clearance from obstacles during flight at low altitude, resulting in wire strike.
- [NTSB FTW90DRD08](https://openairdocs.org/ntsb/FTW90DRD08.md): Schweizer G-164B · Basile, LA · Accident · No injuries · Final report · May 13, 1990 · N6733Q · Destroyed
  > The pilot's inadequate evaluation of the weather information. A related factor to the accident was the tailwind.
- [NTSB LAX90DVG08](https://openairdocs.org/ntsb/LAX90DVG08.md): Schweizer G-164-B · Richvale, CA · Accident · No injuries · Final report · May 6, 1990 · N6689K · Substantial damage
  > The pilot in command's failure to maintain a positive rate of climb during takeoff resulting in the aircraft descending into terrain.
- [NTSB LAX90DUG05](https://openairdocs.org/ntsb/LAX90DUG05.md): Grumman G-164B · Blythe, CA · Accident · 1 fatal · Final report · Apr 19, 1990 · N6708K · 2 aircraft · Destroyed
  > Failure of the pilots of N6708K and N10222 to maintain adequate visual lookout and failure of the pilot of N6708K to follow a prearanged procedure for reversing the direction of flight.
- [NTSB ATL90DLT01](https://openairdocs.org/ntsb/ATL90DLT01.md): Grumman G-164B · Tiptonville, TN · Accident · No injuries · Final report · Apr 16, 1990 · N6683K · Substantial damage
  > A loss of engine power for undetermined reasons. A factor in the accident was the rough terrain.
- [NTSB FTW90DRD05](https://openairdocs.org/ntsb/FTW90DRD05.md): Schweizer G-164B · Reeves, LA · Accident · No injuries · Final report · Apr 13, 1990 · N48455 · Substantial damage
  > Loss of engine power due to a frozen rocker arm.
- [NTSB LAX90DVG04](https://openairdocs.org/ntsb/LAX90DVG04.md): Grumman G-164B · Esparto, CA · Accident · 1 fatal · Final report · Apr 4, 1990 · N8011K · Destroyed
  > The pilot misjudged the airplane's clearance with the transmission wires.
- [NTSB FTW90DPA01](https://openairdocs.org/ntsb/FTW90DPA01.md): Grumman G-164B · Bonham, TX · Accident · No injuries · Final report · Apr 4, 1990 · N48372 · Substantial damage
  > A power loss for undetermined reasons. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW90DRD04](https://openairdocs.org/ntsb/FTW90DRD04.md): Grumman G-164B · Fenton, LA · Accident · No injuries · Final report · Apr 3, 1990 · N6714K · Destroyed
  > Failure of the elevator control rod end bearing.

## 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 year(c."eventDate") = 1990
  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&year=1990

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.