| Tail Number / N-Number | N678LS |
| Manufacturer | AERO VODOCHODY |
| Model | L39C |
| Year Built | 1974 |
| Manufacturer's Serial Number | 430404 |
| Aircraft Type | Fixed wing single engine |
| 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 | IVCHENKO |
| Engine Model | AI-25TL |
| Engine Type | Turbo-fan |
| Number of Engines | 1 engine |
| Thrust | 3,792 pounds-force (16.9 kN) |
| Type of Registrant | LLC |
| Owner Name | HUFF AIR LLC |
| Street | 1 SKY WAY |
| City | UVALDE |
| State | TX |
| Zip Code | 78801 |
| Region | Southwestern |
| County | Uvalde County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2021-12-15 |
| Certificate Issue Date | 2018-06-05 |
| Last Action Date | 2021-01-21 |
| Expiration Date | 2028-06-30 |
| Status | Valid Registration |
| Mode S Code | 52175173 |
| Mode S Code Hex | A8FA7B |