| Tail Number / N-Number | N421BD |
| Manufacturer | CESSNA |
| Model | 421C |
| Year Built | 1979 |
| Manufacturer's Serial Number | 421C0679 |
| 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 SER |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 435 hp (325 kW) |
| Total Horsepower | 870 hp (649 kW) |
| Average Cruising Speed | 90 miles per hour |
| Type of Registrant | LLC |
| Owner Name | 421BD LLC |
| Street | PO BOX 177 |
| City | ARAB |
| State | AL |
| Zip Code | 35016-0177 |
| Region | Southern |
| County | Marshall County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1984-03-25 |
| Certificate Issue Date | 2016-03-17 |
| Last Action Date | 2022-02-16 |
| Expiration Date | 2029-03-31 |
| Status | Valid Registration |
| Mode S Code | 51177563 |
| Mode S Code Hex | A4FF73 |