| Tail Number / N-Number | N158RG |
| Manufacturer | GUILLIAMS ROBERT J |
| Model | TITAN T-51 D |
| Manufacturer's Serial Number | M10HV6SOHK0158 |
| 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) |
| Number of Engines | 1 engine |
| Kit Manufacturer | TITAN AIRCRAFT |
| Kit Model | T-51 MUSTANG |
| Type of Registrant | Individual |
| Owner Name | GUILLIAMS ROBERT J |
| Street | 16891 SE 76TH CHATHAM AVE |
| City | THE VILLAGES |
| State | FL |
| Zip Code | 32162-0040 |
| Region | Southern |
| County | Sumter County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2021-03-31 |
| Last Action Date | 2021-03-31 |
| Expiration Date | 2028-03-31 |
| Status | Valid Registration |
| Mode S Code | 50164545 |
| Mode S Code Hex | A0E965 |