| Tail Number / N-Number | N551TX |
| Manufacturer | ENTENMANN WILLIAM G |
| Model | MUSTANG II |
| Year Built | 2000 |
| Manufacturer's Serial Number | MII1984 |
| 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 | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Kit Manufacturer | MUSTANG AERONAUTICS |
| Kit Model | MUSTANG II |
| Type of Registrant | Individual |
| Owner Name | BLAKE ROBERT |
| Street | 5550 SPINNAKER DR |
| City | SALISBURY |
| State | MD |
| Zip Code | 21801-2347 |
| Region | Eastern |
| County | Wicomico County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2001-01-05 |
| Certificate Issue Date | 2013-02-12 |
| Last Action Date | 2021-10-06 |
| Expiration Date | 2029-02-28 |
| Status | Valid Registration |
| Mode S Code | 51602341 |
| Mode S Code Hex | A704E1 |