| Tail Number / N-Number | N974D |
| Manufacturer | KOLB AIRCRAFT CO |
| Model | TWINSTAR MARK III C |
| Year Built | 1999 |
| Manufacturer's Serial Number | TM 313 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Light Sport |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROTAX |
| Engine Model | 912UL SERIES |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 80 hp (60 kW) |
| Type of Registrant | Individual |
| Owner Name | PENCE CHRISTIAN F |
| Street | 1013 STANTON ST |
| City | COLORADO SPRINGS |
| State | CO |
| Zip Code | 80907-4617 |
| Region | Northwest Mountain |
| County | El Paso County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2010-01-28 |
| Certificate Issue Date | 2019-06-04 |
| Last Action Date | 2022-01-24 |
| Expiration Date | 2029-06-30 |
| Status | Valid Registration |
| Mode S Code | 53311314 |
| Mode S Code Hex | AD92CC |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N974D.
| Tail Number / N-Number | N974D |
| Manufacturer | STINSON |
| Model | 108-2 |
| Manufacturer's Serial Number | 108-2974 |
| 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 | 90 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | HELM BROS INC |
| Street | BOX 327 |
| City | MANDAN |
| State | ND |
| Zip Code | 58554 |
| Region | Great Lakes |
| County | El Paso County |
| Certificate Issue Date | 1957-05-27 |
| Last Status | Valid Registration |
| Cancellation Date | 1958-02-19 |
| Exported To | CANADA |