| Tail Number / N-Number | N421TP |
| Manufacturer | CESSNA |
| Model | 421C |
| Year Built | 1977 |
| Manufacturer's Serial Number | 421C0258 |
| 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 | LYCOMING |
| Engine Model | LTP101-600A |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 599 hp (447 kW) |
| Total Horsepower | 1,198 hp (894 kW) |
| Average Cruising Speed | 90 miles per hour |
| Type of Registrant | LLC |
| Owner Name | DOUBLE R AVIATION LLC |
| Street | 9480 GATEWAY DR STE 101 |
| City | RENO |
| State | NV |
| Zip Code | 89521-3944 |
| Region | Western-Pacific |
| County | Washoe County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1996-11-14 |
| Certificate Issue Date | 2022-10-11 |
| Last Action Date | 2022-10-11 |
| Expiration Date | 2029-10-31 |
| Status | Valid Registration |
| Mode S Code | 51200415 |
| Mode S Code Hex | A5010D |