| Tail Number / N-Number | N239SW |
| Manufacturer | MOONEY |
| Model | M20J |
| Year Built | 1979 |
| Manufacturer's Serial Number | 24-0924 |
| 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 | I0360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 126 miles per hour |
| Type of Registrant | Individual |
| Owner Name | PYLES WILLIAM J |
| Street | 8361 E VIA DE ENCANTO |
| City | SCOTTSDALE |
| State | AZ |
| Zip Code | 85258-3808 |
| Region | Western-Pacific |
| County | Maricopa County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1979-11-30 |
| Certificate Issue Date | 2011-08-02 |
| Last Action Date | 2020-03-26 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 50425624 |
| Mode S Code Hex | A22B94 |