| Tail Number / N-Number | N139N |
| Manufacturer | WILLIAM D LOWERY |
| Model | SEA TWISTER |
| Year Built | 2020 |
| Manufacturer's Serial Number | 001 |
| Aircraft Type | Fixed wing single engine |
| Category | Amphibian |
| Builder Certification | Not Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O-360-A1A |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Individual |
| Owner Name | LOWERY WILLIAM D |
| Street | 3000 W OSCEOLA RD |
| City | GENEVA |
| State | FL |
| Zip Code | 32732-9426 |
| Region | Southern |
| County | Seminole County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2020-05-18 |
| Certificate Issue Date | 2019-02-19 |
| Last Action Date | 2021-09-20 |
| Expiration Date | 2029-02-28 |
| Status | Valid Registration |
| Mode S Code | 50116714 |
| Mode S Code Hex | A09DCC |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N139N.
| Tail Number / N-Number | N139N |
| Manufacturer | CESSNA |
| Model | 650 |
| Manufacturer's Serial Number | 650-0149 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 12 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Type of Registrant | Corporation |
| Owner Name | EXECUTIVE JET SALES INC |
| Street | 2 LEADERSHIP SQUARE 10TH FLOOR |
| City | OKLAHOMA CITY |
| State | OK |
| Zip Code | 73102 |
| County | Seminole County |
| Country | US |
| Certificate Issue Date | 1997-12-17 |
| Last Action Date | 1998-01-26 |
| Last Status | Valid Registration |
| Cancellation Date | 1999-05-27 |
| Exported To | GERMANY |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N139N.
| Tail Number / N-Number | N139N |
| Manufacturer | SCHLEICHER |
| Model | KA 6 E |
| Manufacturer's Serial Number | 4038 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 0 engines |
| Average Cruising Speed | 60 miles per hour |
| Type of Registrant | Individual |
| Owner Name | BROWN WILLIAM R |
| Street | PO BOX 525 |
| City | ATHENS |
| State | GA |
| Zip Code | 30601 |
| County | Seminole County |
| Country | US |
| Certificate Issue Date | 1969-07-18 |
| Last Action Date | 1991-04-30 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1991-06-04 |