| Tail Number / N-Number | N139L |
| Manufacturer | AERO VODOCHODY |
| Model | L-39C |
| Year Built | 1975 |
| Manufacturer's Serial Number | 530523 |
| 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 | L39 AIRCRAFT LLC |
| Street | PO BOX 3936 |
| City | ALPINE |
| State | WY |
| Zip Code | 83128-3900 |
| Region | Northwest Mountain |
| County | Lincoln County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2022-07-20 |
| Certificate Issue Date | 2022-04-26 |
| Last Action Date | 2022-04-26 |
| Expiration Date | 2029-04-30 |
| Status | Valid Registration |
| Mode S Code | 50116632 |
| Mode S Code Hex | A09D9A |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N139L.
| Tail Number / N-Number | N139L |
| Manufacturer | AERO VODOCHODY |
| Model | L39C |
| Year Built | 1984 |
| Manufacturer's Serial Number | 433132 |
| 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 | AL-25SERIES |
| Engine Type | Turbo-fan |
| Number of Engines | 1 engine |
| Horsepower | 330 hp (246 kW) |
| Type of Registrant | Corporation |
| Owner Name | JBL AVIATION INC |
| Street | 3636 WILBUR PLZ |
| City | OMAHA |
| State | NE |
| Zip Code | 68110-2642 |
| County | Lincoln County |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2001-07-02 |
| Certificate Issue Date | 2014-04-17 |
| Last Action Date | 2014-09-04 |
| Last Status | Valid Registration |
| Cancellation Date | 2014-12-02 |
| Exported To | BRAZIL |