# N977ST: 2013 Greg J Gunther SPORT COPTER VORTEX

- Status: Valid registration
- Airframe: [Greg J Gunther SPORT COPTER VORTEX](https://openairdocs.org/model/greg-j-gunther-sport-copter-vortex) (registry code 056306P, 1 seats)
- Engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572)
- Serial number: 146
- Year built: 2013
- Type: Rotorcraft
- Engine type: Reciprocating
- Kit: Sport Copter Inc VORTEX M912
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 29, 2013
- Certificate issued: August 19, 2026
- Expires: August 31, 2033
- Mode S code: AD9F48
- Registered owner: [Smith Joseph Michael](https://openairdocs.org/faa-owner/SMITH%20JOSEPH%20MICHAEL)
- Location: [Meadow Grove, NE](https://openairdocs.org/faa-place/NE/Meadow%20Grove)
- Owner type: Individual
- Owner's area on the map: 42.0202° N, 97.7117° W: Placed by OpenAirDocs at the center of ZIP code 68752, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=977ST
- Page: https://openairdocs.org/aircraft/N977ST

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Rotax 912ULS model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Greg J Gunther SPORT COPTER VORTEX)

None in force.

### Matched by engine (Rotax 912ULS series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N977ST.

## FAA accident and incident reports

None matched to N977ST.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N977ST

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N977ST before.

- [Cancelled 1994-03-16](https://openairdocs.org/deregistered/N977ST-1994-03-16): Sill/Thomas LONG-EZ, S/N 100ST. Triennial form not returned. Owner: [Thomas Arthur N Jr](https://openairdocs.org/faa-owner/THOMAS%20ARTHUR%20N%20JR), [Northridge, CA](https://openairdocs.org/faa-place/CA/Northridge)

## Related

- Other Greg J Gunther SPORT COPTER VORTEX aircraft: https://openairdocs.org/model/greg-j-gunther-sport-copter-vortex/aircraft.md
- The Rotax 912ULS series engine: https://openairdocs.org/engine/rotax-912uls-series.md

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