Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N32431.
| Tail Number / N-Number | N32431 |
| Manufacturer | NORTHWESTERN |
| Model | PORTERFIELD CP-65 |
| Year Built | 1940 |
| Manufacturer's Serial Number | 861 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | FRANKLIN |
| Engine Model | 4AC176B SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 65 hp (48 kW) |
| Average Cruising Speed | 76 miles per hour |
| Type of Registrant | Government |
| Owner Name | CITY OF LIBERAL KANSAS |
| Street | PO BOX 2199 C/O MID AMERICA AIR MUSEUM |
| City | LIBERAL |
| State | KS |
| Zip Code | 67905-2199 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-04-07 |
| Certificate Issue Date | 2002-09-27 |
| Last Action Date | 2008-09-16 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-02-25 |
| Mode S Code | 50700007 |
| Mode S Code Hex | A38007 |