Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4039K.
| Tail Number / N-Number | N4039K |
| Manufacturer | BALLOON WORKS |
| Model | FIREFLY 7 |
| Year Built | 1979 |
| Manufacturer's Serial Number | 7823 |
| Aircraft Type | Balloon |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Average Cruising Speed | 63 miles per hour |
| Type of Registrant | Individual |
| Owner Name | CORN WILLIAM L |
| Street | 1909 56TH AV N |
| City | ST PETERSBURG |
| State | FL |
| Zip Code | 33714 |
| Country | US |
| Airworthiness Classification | Standard |
| Certificate Issue Date | 1989-02-27 |
| Last Action Date | 1998-09-11 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2015-05-06 |
| Mode S Code | 51135543 |
| Mode S Code Hex | A4BB63 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4039K.
| Tail Number / N-Number | N4039K |
| Manufacturer | NORTH AMERICAN |
| Model | NAVION |
| Manufacturer's Serial Number | NAV-4-1039 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 126 miles per hour |
| Type of Registrant | Individual |
| Owner Name | DEANS F B |
| Street | SUFFOLK LODGE |
| City | LONG ISLAND |
| State | NY |
| Zip Code | 11719 |
| Region | Eastern |
| Certificate Issue Date | 1947-09-23 |
| Last Status | Valid Registration |
| Cancellation Date | 1949-09-09 |
| Mode S Code | 51135543 |
| Mode S Code Hex | A4BB63 |