# N640: Grumman G-21A, registration cancelled 2001-07-06

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 6, 2001
- Status when cancelled: Triennial form not returned
- Airframe: [Grumman G-21A](https://openairdocs.org/model/grumman-g-21a) (registry code 3951204)
- Data sheets: [TCDS TC 654](https://openairdocs.org/tcds/TC%20654) (OpenAirDocs)
- Serial number: B-123
- Type of aircraft: Fixed wing multi engine
- Certificate issued: April 15, 1998
- Last registry action: June 19, 2001
- Mode S code: A8653A
- Owner when cancelled: [Teufel Nursery Inc](https://openairdocs.org/faa-owner/TEUFEL%20NURSERY%20INC)
- Location: [Portland, OR](https://openairdocs.org/faa-place/OR/Portland)
- Owner type: Corporation
- Owner's area on the map: 45.5492° N, 122.8100° W: Placed by OpenAirDocs at the center of ZIP code 97229, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N640
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=640
- Page: https://openairdocs.org/deregistered/N640-2001-07-06

From the FAA registry file of October 28, 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 G-21A: https://openairdocs.org/model/grumman-g-21a.md

## NTSB investigations (2)

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 SEA68D0099](https://openairdocs.org/ntsb/SEA68D0099), Aug 5, 1967: Grumman G-21A (N640), Sandy, OR, substantial damage
- [NTSB ANC67D0063](https://openairdocs.org/ntsb/ANC67D0063), Aug 31, 1966: Grumman G-21 (N640), Alegnagik, AK, substantial damage

## Other aircraft with N640

- [Registered now](https://openairdocs.org/aircraft/N640): Grumman/Mckinnon Enterprises G21G, S/N 1201, built 1944
- [Cancelled 1934-07-20](https://openairdocs.org/deregistered/N640-1934-07-20): Dehavilland 4B (MAIL), S/N 100. Owner: [Caddo Company Inc](https://openairdocs.org/faa-owner/CADDO%20COMPANY%20INC), [Hollywood, CA](https://openairdocs.org/faa-place/CA/Hollywood)

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