| Tail Number / N-Number | N8421P |
| Manufacturer | PIPER |
| Model | PA-24-400 |
| Year Built | 1964 |
| Manufacturer's Serial Number | 26-12 |
| 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 | LYCOMING |
| Engine Model | IO-720 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 400 hp (298 kW) |
| Average Cruising Speed | 157 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WILLS TERRY W |
| Street | 3000 KENAI DR |
| City | CEDAR PARK |
| State | TX |
| Zip Code | 78613-2526 |
| Region | Southwestern |
| County | Williamson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1964-06-10 |
| Certificate Issue Date | 2018-07-19 |
| Last Action Date | 2021-02-18 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 52704720 |
| Mode S Code Hex | AB89D0 |