Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4021.
| Tail Number / N-Number | N4021 |
| Manufacturer | SANCHEZ |
| Model | CHEROKEE II |
| Year Built | 1967 |
| Manufacturer's Serial Number | FS-100 |
| Aircraft Type | Glider |
| 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 | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Average Cruising Speed | 65 miles per hour |
| Type of Registrant | Individual |
| Owner Name | BIERKAN KURT R |
| Street | 6520 MT ADELBERT DR |
| City | SAN DIEGO |
| State | CA |
| Zip Code | 92111 |
| Country | US |
| Airworthiness Classification | Experimental |
| Certificate Issue Date | 1977-06-21 |
| Last Action Date | 1977-06-25 |
| Last Status | Revoked – Canceled |
| Cancellation Date | 2012-05-24 |
| Mode S Code | 51133212 |
| Mode S Code Hex | A4B68A |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4021.
| Tail Number / N-Number | N4021 |
| Manufacturer | ALEXANDER AIRCRAFT CO |
| Model | COMBINATION EAGLEROC |
| Manufacturer's Serial Number | 412 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | DARLING SAMUEL TAYLOR |
| Street | 318 SOUTH STATE STREET |
| City | JACKSON |
| State | MS |
| Zip Code | 38614 |
| Region | Southwestern |
| Last Status | Valid Registration |
| Cancellation Date | 1929-08-23 |
| Mode S Code | 51133212 |
| Mode S Code Hex | A4B68A |