# N9970: 1974 Grumman Acft ENG Cor-Schweizer G-164A, registration cancelled 2018-01-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: January 17, 2018
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Grumman Acft ENG Cor-Schweizer G-164A](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a) (registry code 3952801)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Data sheets: [TCDS 1A16](https://openairdocs.org/tcds/1A16) (OpenAirDocs)
- Serial number: 1375
- Year built: 1974
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: November 23, 1974
- Certificate issued: November 9, 1981
- Last registry action: August 11, 2006
- Mode S code: ADEEFC
- Owner when cancelled: [West Flying Services Inc.](https://openairdocs.org/faa-owner/WEST%20FLYING%20SERVICES%20INC.)
- Location: [Echo, OR](https://openairdocs.org/faa-place/OR/Echo)
- Owner type: Corporation
- Owner's area on the map: 45.6643° N, 119.2323° W: Placed by OpenAirDocs at the center of ZIP code 97826, within about 10 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N9970
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9970
- Page: https://openairdocs.org/deregistered/N9970-2018-01-17

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Grumman Acft ENG Cor-Schweizer G-164A: https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a.md

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB SEA99LA074](https://openairdocs.org/ntsb/SEA99LA074), May 27, 1999: Grumman-Schweizer G-164A (N9970), Prescott, WA, substantial damage. Probable cause: The pilot-in-command's failure to maintain directional control during the takeoff roll and overloading of the right landing gear strut. Contributing factors were the soft takeoff surface, confined…

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 19990527005909A](https://openairdocs.org/incident/19990527005909A), May 27, 1999: Scwzer G164A (N9970), Prescott, WA, Substantial damage. Pilot lost control of the acft on take-off, and the acft crashed and sustained substantial damage. (-23)'see attached' no attachment

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