| Tail Number / N-Number | N139MD |
| Manufacturer | AERO VODOCHODY |
| Model | L39CT |
| Year Built | 1996 |
| Manufacturer's Serial Number | 135232 |
| 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 | IVCHENKO |
| Engine Model | AL-25SERIES |
| Engine Type | Turbo-fan |
| Number of Engines | 1 engine |
| Horsepower | 330 hp (246 kW) |
| Type of Registrant | LLC |
| Owner Name | ADVANTAGE AVIATION L39 LLC |
| Street | 3937 WHEELER AVE |
| City | ALEXANDRIA |
| State | VA |
| Zip Code | 22304-6410 |
| Region | Eastern |
| County | Alexandria city |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2012-06-15 |
| Certificate Issue Date | 2013-05-14 |
| Last Action Date | 2021-12-13 |
| Expiration Date | 2029-05-31 |
| Status | Valid Registration |
| Mode S Code | 50116667 |
| Mode S Code Hex | A09DB7 |