# N4436U: 1983 Frederickson Ralph J TERATORN TIERRA II, registration cancelled 2006-07-06

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 6, 2006
- Status when cancelled: Triennial form not returned
- Airframe: [Frederickson Ralph J TERATORN TIERRA II](https://openairdocs.org/model/frederickson-ralph-j-teratorn-tierra-ii) (registry code 05675DS)
- Engine: [Bombardier ROTAX (ALL)](https://openairdocs.org/engine/bombardier-rotax-all) (registry code 09050)
- Serial number: 8683
- Year built: 1983
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: October 28, 1983
- Certificate issued: July 9, 1985
- Last registry action: May 16, 2006
- Mode S code: A558FF
- Owner when cancelled: [Hansen Gene R](https://openairdocs.org/faa-owner/HANSEN%20GENE%20R)
- Location: [Mazon, IL](https://openairdocs.org/faa-place/IL/Mazon)
- Owner type: Individual
- Owner's area on the map: 41.2431° N, 88.4027° W: Placed by OpenAirDocs at the center of ZIP code 60444, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4436U
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4436U
- Page: https://openairdocs.org/deregistered/N4436U-2006-07-06

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 Frederickson Ralph J TERATORN TIERRA II: https://openairdocs.org/model/frederickson-ralph-j-teratorn-tierra-ii.md

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