| Tail Number / N-Number | N521MW |
| Manufacturer | PIPER |
| Model | PA-24-250 |
| Year Built | 1960 |
| Manufacturer's Serial Number | 24-1978 |
| 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 | 0-540 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 250 hp (187 kW) |
| Average Cruising Speed | 135 miles per hour |
| Type of Registrant | Individual |
| Owner Name | GRUETZMACHER MARCUS COLLIN |
| Street | 683 SPANISH GRANT RD |
| City | GOLIAD |
| State | TX |
| Zip Code | 77963-3465 |
| Region | Southwestern |
| County | Goliad County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1960-06-16 |
| Certificate Issue Date | 2020-01-15 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-01-31 |
| Status | Valid Registration |
| Mode S Code | 51506715 |
| Mode S Code Hex | A68DCD |