Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N1521E.
| Tail Number / N-Number | N1521E |
| Manufacturer | BALLOON WORKS |
| Model | FIREFLY 7-B |
| Year Built | 1981 |
| Manufacturer's Serial Number | 11037 |
| 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 |
| Type of Registrant | Individual |
| Owner Name | KNAUS RANDI B |
| Street | 10123 AIRPORT WAY |
| City | SNOHOMISH |
| State | WA |
| Zip Code | 98290 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1981-08-03 |
| Certificate Issue Date | 1993-04-13 |
| Last Action Date | 2008-04-15 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-06-18 |
| Mode S Code | 50152035 |
| Mode S Code Hex | A0D41D |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N1521E.
| Tail Number / N-Number | N1521E |
| Manufacturer | AERONCA |
| Model | 7AC |
| Year Built | 1946 |
| Manufacturer's Serial Number | 7AC-5084 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 90 miles per hour |
| Type of Registrant | Individual |
| Owner Name | LINCOLN HUBERT L |
| Street | 515 LEXINGTON ROAD |
| City | EATON |
| State | OH |
| Zip Code | 45320 |
| Region | Great Lakes |
| Certificate Issue Date | 1950-03-14 |
| Last Status | Valid Registration |
| Cancellation Date | 1953-05-27 |
| Mode S Code | 50152035 |
| Mode S Code Hex | A0D41D |