# N451ST: S Tec STM 4, registration cancelled 1994-07-13

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 13, 1994
- Status when cancelled: Valid registration
- Airframe: [S Tec STM 4](https://openairdocs.org/model/s-tec-stm-4) (registry code 0561681)
- Serial number: 4001
- Type of aircraft: Fixed wing single engine
- Certificate issued: July 2, 1991
- Last registry action: April 2, 1992
- Mode S code: A57775
- Owner when cancelled: [Experimental Wings Inc](https://openairdocs.org/faa-owner/EXPERIMENTAL%20WINGS%20INC)
- Location: [Alexandria, VA](https://openairdocs.org/faa-place/VA/Alexandria)
- Owner type: Corporation
- Owner's area on the map: 38.8279° N, 77.0831° W: Placed by OpenAirDocs at the center of ZIP code 22302, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N451ST
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=451ST
- Page: https://openairdocs.org/deregistered/N451ST-1994-07-13

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 S Tec STM 4: https://openairdocs.org/model/s-tec-stm-4.md

## Other aircraft with N451ST

- [Cancelled 2015-02-23](https://openairdocs.org/deregistered/N451ST-2015-02-23): Learjet 45, S/N 200, built 2002. Exported to Colombia. Owner: [Haines Aircorp Inc](https://openairdocs.org/faa-owner/HAINES%20AIRCORP%20INC), [Dover, DE](https://openairdocs.org/faa-place/DE/Dover)

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