Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N421SD.
| Tail Number / N-Number | N421SD |
| Manufacturer | CESSNA |
| Model | 421B |
| Year Built | 1971 |
| Manufacturer's Serial Number | 421B0127 |
| 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 | 172 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | S AND D AVIATION LLC |
| Street | PO BOX 1823 |
| City | COLUMBUS |
| State | MS |
| Zip Code | 39703-1823 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1971-06-03 |
| Certificate Issue Date | 2007-06-18 |
| Last Action Date | 2011-07-18 |
| Last Status | Registration Expired - Pending Cancellation |
| Cancellation Date | 2017-10-31 |
| Mode S Code | 51200352 |
| Mode S Code Hex | A500EA |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N421SD.
| Tail Number / N-Number | N421SD |
| Manufacturer | CESSNA |
| Model | 421B |
| Year Built | 1973 |
| Manufacturer's Serial Number | 421B0386 |
| 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 | IO 520 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 285 hp (213 kW) |
| Total Horsepower | 570 hp (425 kW) |
| Average Cruising Speed | 172 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | GEORGIA CUMBERLAND CON OF SEVENTH D |
| Street | PO BOX 12000 |
| City | CALHOUN |
| State | GA |
| Zip Code | 30703-7001 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1973-05-30 |
| Certificate Issue Date | 1993-05-11 |
| Last Action Date | 2003-12-16 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2005-03-21 |
| Mode S Code | 51200352 |
| Mode S Code Hex | A500EA |