Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4421F.
| Tail Number / N-Number | N4421F |
| Manufacturer | CESSNA |
| Model | 421C |
| Year Built | 1979 |
| Manufacturer's Serial Number | 421C0693 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | GTSIO-520-C |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 340 hp (254 kW) |
| Total Horsepower | 680 hp (507 kW) |
| Average Cruising Speed | 90 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | AIRCRAFT SYSTEMS & MANUFACTURING INC |
| Street | 1212 EAST ANDERSON LANE SUITE B |
| City | AUSTIN |
| State | TX |
| Zip Code | 78752 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1979-07-13 |
| Certificate Issue Date | 1991-04-11 |
| Last Action Date | 1994-05-23 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-06-07 |
| Mode S Code | 51252214 |
| Mode S Code Hex | A5548C |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4421F.
| Tail Number / N-Number | N4421F |
| Manufacturer | MILLER EDWARD R |
| Model | TERATORN TIERRA |
| Year Built | 1983 |
| Manufacturer's Serial Number | 1441 |
| Aircraft Type | Fixed wing single engine |
| 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | MILLER EDWARD R |
| Street | RR 1 BOX 516 |
| City | MERRIMAC |
| State | WI |
| Zip Code | 53561 |
| Region | Great Lakes |
| Certificate Issue Date | 1984-10-16 |
| Last Status | Valid Registration |
| Cancellation Date | 1983-08-03 |
| Mode S Code | 51252214 |
| Mode S Code Hex | A5548C |