Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4521E.
| Tail Number / N-Number | N4521E |
| Manufacturer | CESSNA |
| Model | 172N |
| Year Built | 1978 |
| Manufacturer's Serial Number | 17271620 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 105 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | DOUGLAS AVIATION INC |
| Street | 11299 AIRPORT ROAD |
| City | OLIVE BRANCH |
| State | MS |
| Zip Code | 38654 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1978-10-05 |
| Certificate Issue Date | 1994-11-02 |
| Last Action Date | 2009-12-15 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2018-01-23 |
| Mode S Code | 51276012 |
| Mode S Code Hex | A57C0A |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4521E.
| Tail Number / N-Number | N4521E |
| Manufacturer | AERONCA |
| Model | 7DC |
| Manufacturer's Serial Number | 7DC-129 |
| 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 | BERTRAM G A DBA SOUTHWEST KANSAS AIRCRAFT SALES |
| Certificate Issue Date | 1954-12-30 |
| Last Status | Valid Registration |
| Cancellation Date | 1956-05-10 |
| Exported To | CANADA |
| Mode S Code | 51276012 |
| Mode S Code Hex | A57C0A |