# N6605C: 1958 Seastron Gyrocopter S-1, registration cancelled 2017-11-21

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 21, 2017
- Status when cancelled: Revoked, canceled
- Airframe: [Seastron Gyrocopter S-1](https://openairdocs.org/model/seastron-gyrocopter-s-1) (registry code 056024H)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 1
- Year built: 1958
- Type of aircraft: Rotorcraft
- Airworthiness: Experimental, amateur built
- Last registry action: January 14, 1977
- Mode S code: A8B743
- Owner when cancelled: [Seastrom William W](https://openairdocs.org/faa-owner/SEASTROM%20WILLIAM%20W)
- Location: [Portland 13, OR](https://openairdocs.org/faa-place/OR/Portland%2013)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N6605C
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6605C
- Page: https://openairdocs.org/deregistered/N6605C-2017-11-21

From the FAA registry file of November 12, 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 Seastron Gyrocopter S-1: https://openairdocs.org/model/seastron-gyrocopter-s-1.md

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