| Tail Number / N-Number | N61921 |
| Manufacturer | ERNST ROBERT |
| Model | ERNST 109 |
| Year Built | 2000 |
| Manufacturer's Serial Number | TB4250 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-540 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Type of Registrant | LLC |
| Owner Name | STS AVIATION LLC |
| Street | 1412 N HALIFAX AVE |
| City | DAYTONA BEACH |
| State | FL |
| Zip Code | 32118-3518 |
| Region | Southern |
| County | Volusia County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2000-06-04 |
| Certificate Issue Date | 2012-02-08 |
| Last Action Date | 2020-09-18 |
| Expiration Date | 2028-02-29 |
| Status | Valid Registration |
| Mode S Code | 52011345 |
| Mode S Code Hex | A812E5 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N61921.
| Tail Number / N-Number | N61921 |
| Manufacturer | CESSNA |
| Model | A185F |
| Manufacturer's Serial Number | 18504276 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 127 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | STC AVIATON INC |
| Street | 1550 45TH AVE SE |
| City | SAINT CLOUD |
| State | MN |
| Zip Code | 56304 |
| County | Volusia County |
| Country | US |
| Certificate Issue Date | 1995-06-14 |
| Last Action Date | 1995-06-16 |
| Last Status | Valid Registration |
| Cancellation Date | 1995-08-21 |
| Exported To | CANADA |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N61921.
| Tail Number / N-Number | N61921 |
| Manufacturer | CESSNA |
| Model | 172M |
| Manufacturer's Serial Number | 17264886 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 108 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | AVIATION ACTIVITIES INC |
| Street | ROUTE 13 |
| City | VALPARAISO |
| State | IN |
| Zip Code | 46383 |
| Region | Great Lakes |
| County | Volusia County |
| Certificate Issue Date | 1975-06-23 |
| Last Status | Valid Registration |
| Cancellation Date | 1975-06-23 |
| Exported To | CANADA |