| Tail Number / N-Number | N173AU |
| Manufacturer | DAVID W KOENIG |
| Model | THK65 |
| Year Built | 2019 |
| Manufacturer's Serial Number | 001 |
| Aircraft Type | Balloon |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Type of Registrant | Individual |
| Owner Name | KOENIG DAVID W |
| Street | 1486 PLANK RD |
| City | MENASHA |
| State | WI |
| Zip Code | 54952-2947 |
| Region | Great Lakes |
| County | Winnebago County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2019-07-19 |
| Certificate Issue Date | 2019-05-21 |
| Last Action Date | 2022-01-04 |
| Expiration Date | 2029-05-31 |
| Status | Valid Registration |
| Mode S Code | 50222145 |
| Mode S Code Hex | A12465 |