# N21E: 1930 Keystone K84 COMMUTER, registration cancelled 1938-09-24

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 24, 1938
- Status when cancelled: Valid registration
- Airframe: [Keystone K84 COMMUTER](https://openairdocs.org/model/keystone-k84-commuter) (registry code 4900102)
- Serial number: 329
- Year built: 1930
- Type of aircraft: Fixed wing single engine
- Mode S code: A1B78D
- Owner when cancelled: [Purchase Flying Service Inc](https://openairdocs.org/faa-owner/PURCHASE%20FLYING%20SERVICE%20INC)
- Location: [Garden City, NY](https://openairdocs.org/faa-place/NY/Garden%20City)
- Owner type: Corporation
- Owner's area on the map: 40.7269° N, 73.6370° W: Placed by OpenAirDocs at the center of ZIP code 11530, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N21E
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=21E
- Page: https://openairdocs.org/deregistered/N21E-1938-09-24

From the FAA registry file of November 5, 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 Keystone K84 COMMUTER: https://openairdocs.org/model/keystone-k84-commuter.md

## Other aircraft with N21E

- [Cancelled 2021-04-03](https://openairdocs.org/deregistered/N21E-2021-04-03): Great Lakes 2T-1A, S/N 258, built 1932. Registration expired, pending cancellation. Owner: [Krier Gilbert J](https://openairdocs.org/faa-owner/KRIER%20GILBERT%20J), [Ashland, KS](https://openairdocs.org/faa-place/KS/Ashland)

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