| Tail Number / N-Number | N18591 |
| Manufacturer | CESSNA |
| Model | C-37 |
| Manufacturer's Serial Number | 376 |
| 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 | WARNER |
| Engine Model | SS165 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 175 hp (131 kW) |
| Average Cruising Speed | 125 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WIEMAN DIANNE L |
| Street | 325 CUB DR |
| City | MARION |
| State | TX |
| Zip Code | 78124-6501 |
| Region | Southwestern |
| County | Guadalupe County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1964-02-05 |
| Certificate Issue Date | 2021-04-13 |
| Last Action Date | 2021-04-13 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 50253354 |
| Mode S Code Hex | A156EC |