| Tail Number / N-Number | N421RD |
| Manufacturer | CESSNA |
| Model | 421 |
| Year Built | 1968 |
| Manufacturer's Serial Number | 421-0157 |
| 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 | Individual |
| Owner Name | MUNN LAURIE P |
| Street | 17544 DU BARRY DR |
| City | BELLFLOWER |
| State | CA |
| Zip Code | 90706-6817 |
| Region | Western-Pacific |
| County | Los Angeles County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1968-08-05 |
| Certificate Issue Date | 2006-05-02 |
| Last Action Date | 2022-11-16 |
| Expiration Date | 2030-04-30 |
| Status | Valid Registration |
| Mode S Code | 51200321 |
| Mode S Code Hex | A500D1 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N421RD.
| Tail Number / N-Number | N421RD |
| Manufacturer | CESSNA |
| Model | 421B |
| Manufacturer's Serial Number | 421B0104 |
| 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) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 172 miles per hour |
| County | Los Angeles County |
| Last Status | N-Number Assigned – but has not yet been registered |
| Cancellation Date | 1988-09-28 |