| Tail Number / N-Number | N421C |
| Manufacturer | CIRRUS DESIGN CORP |
| Model | SR22 |
| Year Built | 2002 |
| Manufacturer's Serial Number | 0434 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO-550 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Type of Registrant | LLC |
| Owner Name | SHADOW CAT AVIATION LLC |
| Street | 5200 BUTTONBUSH DR |
| City | FITCHBURG |
| State | WI |
| Zip Code | 53711 |
| Region | Great Lakes |
| County | Dane County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2002-12-23 |
| Certificate Issue Date | 2003-02-06 |
| Last Action Date | 2022-04-18 |
| Expiration Date | 2029-08-31 |
| Status | Valid Registration |
| Mode S Code | 51177610 |
| Mode S Code Hex | A4FF88 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N421C.
| Tail Number / N-Number | N421C |
| Manufacturer | PIPER |
| Model | PA-23 |
| Manufacturer's Serial Number | 23-488 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 150 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | LLOYD FRANK W |
| Street | 3800 S W FIRST ST |
| City | MIAMI |
| State | FL |
| Zip Code | 33134 |
| Region | Southern |
| County | Dane County |
| Certificate Issue Date | 1968-08-23 |
| Last Status | Valid Registration |
| Cancellation Date | 1970-10-19 |