| Tail Number / N-Number | N421BC |
| Manufacturer | CESSNA |
| Model | 421C |
| Year Built | 1976 |
| Manufacturer's Serial Number | 421C0086 |
| 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 | LLC |
| Owner Name | SPRAY BROTHERS AVIATION LLC |
| Street | PO BOX 1486 |
| City | GREAT BEND |
| State | KS |
| Zip Code | 67530-1486 |
| Region | Central |
| County | Barton County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1976-04-19 |
| Certificate Issue Date | 2013-07-10 |
| Last Action Date | 2022-02-28 |
| Expiration Date | 2029-07-31 |
| Status | Valid Registration |
| Mode S Code | 51177562 |
| Mode S Code Hex | A4FF72 |