| Tail Number / N-Number | N639TB |
| Manufacturer | SIEBERTS JOHN CRAIG |
| Model | RV-4 |
| Year Built | 1991 |
| Manufacturer's Serial Number | 938 |
| 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 | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Co-Ownership |
| Owner Name | MURPHY CRAIG D |
| Other Names |
|
| Street | 5307 E QUARTERSAWN CT |
| City | BOISE |
| State | ID |
| Zip Code | 83716-8621 |
| Region | Northwest Mountain |
| County | Ada County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1991-12-17 |
| Certificate Issue Date | 2022-06-28 |
| Last Action Date | 2022-06-28 |
| Expiration Date | 2029-06-30 |
| Status | Valid Registration |
| Mode S Code | 52060326 |
| Mode S Code Hex | A860D6 |